CN111982524A - Mobile probe measuring device - Google Patents
Mobile probe measuring device Download PDFInfo
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- CN111982524A CN111982524A CN201910437858.7A CN201910437858A CN111982524A CN 111982524 A CN111982524 A CN 111982524A CN 201910437858 A CN201910437858 A CN 201910437858A CN 111982524 A CN111982524 A CN 111982524A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M10/00—Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention aims to provide a mobile probe measuring device, which comprises a probe, a measuring device and a control device, wherein the probe is used for penetrating through a wall body through hole of a wall body and extending into the inner side of the wall body so as to measure a flow field in the wall body; the mobile probe measuring device also comprises a base, a sliding main body and a sliding sealing piece; the probe is arranged on the sliding main body, and the sliding main body is arranged on the base in a sliding manner; the base is provided with a base through hole; the sliding sealing element is provided with a connecting through hole; the probe is in sealing fit with the shaft hole of the connecting through hole; the sliding sealing piece is arranged on the base in a sliding mode so as to seal the through hole of the base; the probe penetrates through the through hole of the base; the base is used for being installed on a wall body; the sliding main body is used for driving the probe and the sliding sealing piece to slide along the base, so that the probe moves relative to the wall body, and therefore different positions of a flow field are measured. The mobile probe measuring device provided by the embodiment of the invention has better sealing performance.
Description
Technical Field
The present invention relates to a mobile probe measurement device for measuring a flow field inside a gas turbine engine.
Background
The key to reducing flow losses within a gas turbine engine, increasing gas turbine engine efficiency, and improving gas turbine engine design methods is the insight and thorough understanding of the nature of its internal flow phenomena, flow field structures, and loss mechanisms. In addition to numerical simulation of the internal flow of a gas turbine engine using rapidly developed computer technology, intensive and detailed research is mainly required to be performed by means of continuously developed testing instruments and flow field testing technologies.
At present, the flow field measurement inside the gas turbine engine mainly depends on contact measurement, for example, the flow field parameter measurement is performed by adopting a total pressure rake, a total pressure comb, a three-hole probe, a five-hole probe, a hot wire anemometer and the like. The three-hole probe and the five-hole probe are commonly applied, the five-hole probe can simultaneously measure velocity vectors, total pressure, static pressure and other parameters on two mutually perpendicular planes, and the method is an effective means for measuring a three-dimensional flow field, and is simple in principle, convenient to use and maintain, not easy to damage a probe and low in cost. In the test process of the gas turbine engine, parameter information of different flow field positions can be obtained by adopting the displacement mechanism to move the probe, so that the flexibility and the degree of freedom of the displacement mechanism to move have great influence on the layout of flow field measurement.
Patent document CN106989932A discloses a three-way shift measuring device for measuring internal flow field multi-section pneumatic parameters of turbofan engine, comprising: a circumferential mechanism; a roll-over mechanism; a radial mechanism, a rotating cascade test bed and a sealing mechanism; the rotary blade cascade test bed is a cylindrical wall body with openings at two ends, and an axial-flow compressor is installed inside the rotary blade cascade test bed. After the axial-flow compressor is started, a flow field along the axial direction is generated in the rotating cascade test bed.
In order to measure the flow field, the rotating cascade test bed is provided with a first through hole, a second through hole and a third through hole at corresponding positions, the first through hole, the second through hole and the third through hole are mutually spaced, and the first through hole, the second through hole and the third through hole are respectively communicated with the outside and the inside of the rotating cascade test bed, wherein the circumferential mechanism is arranged on the circumferential mounting frame, the radial mechanism is arranged on the radial mounting frame, the rolling mechanism is fixed with the radial mechanism, the pneumatic probe is fixed on the rolling mechanism through an automatic centering device to complete +/-90-degree rolling motion, and the radial movement of the radial mechanism realizes the detection of the probe at different positions in each long and narrow through hole.
The sealing mechanism comprises an upper sawtooth sealing piece, a lower sawtooth sealing piece and a probe sleeve, wherein each upper sawtooth sealing piece and each lower sawtooth sealing piece are respectively arranged at the upper part and the lower part of the first through hole, the second through hole and the third through hole, and each probe sleeve is respectively arranged between each upper sawtooth sealing piece and each lower sawtooth sealing piece. The sealing mechanism adopts a sawtooth sealing mode to increase the sealing area through sawteeth under the condition that absolute sealing of the first through hole, the second through hole and the third through hole is not guaranteed.
The sealing mechanism in the above patent document has an unsatisfactory sealing effect, and is liable to cause leakage of the fluid in the flow passage.
Disclosure of Invention
The invention aims to provide a mobile probe measuring device which is good in sealing performance.
The mobile probe measuring device comprises a probe, a measuring device and a control device, wherein the probe is used for penetrating through a wall body through hole of a wall body and extending into the inner side of the wall body so as to measure a flow field in the wall body; the mobile probe measuring device further comprises a base, a sliding body and a sliding seal;
the probe is arranged on the sliding body, and the sliding body is slidably arranged on the base;
the base is provided with a base through hole; the sliding seal member has a connecting through-hole; the probe is in sealing fit with the shaft hole of the connecting through hole; the sliding sealing piece is slidably arranged on the base to seal the base through hole; the probe penetrates through the base through hole;
the base is used for being mounted on the wall body; the sliding main body is used for driving the probe and the sliding sealing piece to slide along the base, so that the probe moves relative to the wall body, and different positions of the flow field are measured.
In one embodiment, the mobile probe measurement device further comprises a sealing ring; the sealing ring is fixedly arranged on the base and surrounds the base through hole; the sliding sealing element is abutted to the sealing ring.
In one embodiment, the base further has an annular groove surrounding the base through hole; the seal ring is disposed in the annular groove.
In one embodiment, the base includes a base body and a slide rail; the base main body is fixedly connected with the wall body; the slide rail is connected with the base main body;
the base main body is provided with a sliding chute, and the base through hole and the annular groove are formed in the bottom wall of the sliding chute;
the sliding seal is slidably disposed in the chute; the sliding rail is positioned on the outer side of the sliding groove; the sliding main body is in sliding fit with the sliding rail.
In one embodiment, the sealing ring is a rubber ring.
In one embodiment, the sliding body includes a main body portion and a sliding block; the main body part is in sliding fit with the base; the sliding block is slidably arranged on the main body part; the sliding direction of the sliding block relative to the main body part is the axial direction of the connecting through hole;
The probe is arranged on the sliding block; the sliding block is used for driving the probe to penetrate through the wall body through hole and extend into the inner side of the wall body.
In one embodiment, the sliding path of the main body part on the base is in a circular arc shape;
the probe is arranged along the sliding direction of the sliding block relative to the main body part; the sliding direction of the sliding block relative to the main body part is the radial direction of the sliding path of the main body part.
In one embodiment, the mobile probe measurement device further comprises a first drive assembly and a second drive assembly; the first driving assembly and the second driving assembly are respectively installed on the main body part;
the first driving component is used for driving the main body part to slide along the base so as to drive the probe to slide along the base;
the second driving component is used for driving the sliding block to slide on the main body part so as to drive the probe to penetrate through the wall body through hole and extend into the inner side of the wall body.
In one embodiment, the sliding groove, the sliding rail and the sliding seal are arc-shaped.
In one embodiment, the base through hole is a strip-shaped hole, and the annular groove is a strip-shaped groove.
The positive progress effects of the invention are as follows: the mobile probe measuring device comprises a probe, a probe body and a measuring device, wherein the probe is used for penetrating through a wall body through hole of a wall body and extending into the inner side of the wall body so as to measure a flow field in the wall body; the mobile probe measuring device also comprises a base, a sliding main body and a sliding sealing piece; the probe is arranged on the sliding main body, and the sliding main body is arranged on the base in a sliding manner; the base is provided with a base through hole; the sliding sealing element is provided with a connecting through hole; the probe is in sealing fit with the shaft hole of the connecting through hole; the sliding sealing piece is arranged on the base in a sliding mode so as to seal the through hole of the base; the probe penetrates through the through hole of the base; the base is used for being installed on a wall body; the sliding main body is used for driving the probe and the sliding sealing piece to slide along the base, so that the probe moves relative to the wall body, and therefore different positions of a flow field are measured.
Because the probe is in sealing fit with the shaft hole of the connecting through hole of the sliding sealing piece, and the sliding sealing piece is slidably arranged on the base, when the sliding main body drives the probe to slide along the base, the sliding sealing piece can also slide along with the sliding of the sliding main body, and the through hole of the base can be kept sealed in the sliding process, so that the mobile probe measuring device provided by the embodiment of the invention has better sealing performance.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a mobile probe measurement device mounted on a wall;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
fig. 5 is a top view of fig. 1 with the sliding seal removed.
Detailed Description
The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the invention.
The following discloses embodiments or examples of various implementations of the subject technology. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and do not limit the scope of the invention. For example, if a first feature is formed over or on a second feature described later in the specification, this may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact. Additionally, reference numerals and/or letters may be repeated among the various examples throughout this disclosure. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.
It should be noted that fig. 1-5 are exemplary only, are not drawn to scale, and should not be construed as limiting the scope of the invention as actually claimed.
In an embodiment of the invention, the flow field is generated by a gas flow through the flow channels. As shown in fig. 1, the flow passage is located radially inward of the wall body 800. In an embodiment not shown, wall 800 may be a cylinder shaped as a rotating cascade test stand in patent document CN106989932A, the interior of wall 800 directly defining the flow passage. An axial compressor may be disposed within the wall 800 to generate airflow to form the flow field.
In other embodiments, the wall 800 may be integrally formed with the casing.
Referring to fig. 5, the wall body 800 has a wall body through hole 800a penetrating the wall body 800. The probe 1 of the mobile probe measurement apparatus 900 can protrude from the wall through-hole 800a into the flow field inside the wall 800 to measure the flow field.
In order to enable the probe 1 to perform overall measurement on the flow field, the probe 1 needs to be capable of swinging in the flow field along the circumferential direction of the flow field to form a fan-shaped measurement surface a. The measurement plane a is the area swept by the head of the probe 1 as it oscillates in the flow field. Therefore, as shown in fig. 5, the wall through hole 800a is elongated to allow the probe 1 to move along the length direction of the wall through hole 800 a.
In order to enable the probe 1 to swing, the mobile probe measuring device 900 further includes a base 3 and a sliding body 4, the base 3 being configured to be mounted on the wall body 800; the sliding body 4 is slidably disposed on the base 3; the probe 1 is mounted on the sliding body 4; the base 3 has a base through hole 301a, and the probe 1 passes through the base through hole 301a to extend into the wall body through hole 800 a. As shown in fig. 5, the base through hole 301a has a long bar shape and is aligned with the wall through hole 800a to allow the probe 1 to move in the longitudinal direction of the wall through hole 800a and the base through hole 301 a. More specifically, the length of the base through hole 301a is longer than that of the wall through hole 800 a.
To ensure the sealing performance, the contact surface between the base 3 and the wall body 800 should be sealed to prevent the air flow in the flow passage from leaking from the gap between the base 3 and the wall body 800 after passing through the wall body through hole 800 a. The sealing means include a sealant disposed between the base 3 and the wall 800.
To further ensure the sealing property, the base through hole 301a also needs to be sealed. Thus, the mobile probe measurement device 900 further comprises a sliding seal 5; the sliding seal 5 has a connecting through hole (not shown in the drawings because it is hidden); the probe 1 is in sealing fit with the shaft hole of the connecting through hole; the sliding seal 5 is slidably provided on the base 3 to seal the base through hole 301 a; the probe 1 is arranged in the base through hole 301a in a penetrating mode; the sliding body 4 is used to slide the probe 1 and the sliding seal 5 along the base 3, so that the probe 1 moves relative to the wall 800, thereby measuring different positions of the flow field. The sliding seal 5 maintains a seal against the base through hole 301a during sliding along the base 3.
The probe 1 is in sealing fit with the shaft hole of the connecting through hole, and the purpose of the sealing fit is to prevent air flow from being exposed from a gap between the probe 1 and the connecting through hole. For example, the sealing property may be improved by reducing the radial gap between the probe 1 and the connection through-hole, or by providing a sealing material in the radial gap between the probe 1 and the connection through-hole.
Because the probe 1 is in sealing fit with the shaft hole of the connecting through hole of the sliding sealing piece 5, and the sliding sealing piece 5 is slidably arranged on the base 3, when the sliding main body 4 drives the probe 1 to slide along the base 3, the sliding sealing piece 5 can also slide along with the sliding of the sliding main body 4, and can keep sealing on the base through hole 301a in the sliding process, so that the mobile probe measuring device 900 provided by the embodiment of the invention has better sealing performance.
As shown in fig. 5, to further improve the sealing performance, the mobile probe measuring device 900 further includes a sealing ring 2; the sealing ring 2 is fixedly arranged on the base 3 and surrounds the base through hole 301 a; the sliding seal 5 abuts against the seal ring 2.
Further, the base 3 also has an annular groove 301b, the annular groove 301b surrounds the base through hole 301 a; the seal ring 2 is disposed in the annular groove 301 b.
In one embodiment, the base through-hole 301a is an elongated hole and the annular groove 301b is an elongated groove.
In one embodiment, the sealing ring 2 should be arranged slightly protruding from the outer surface of the base 3 to enable the sliding seal 5 to abut against the sealing ring 2.
The sealing ring 2 is a rubber ring or can be made of other sealing materials.
As shown in fig. 1, 2, 4, and 5, the base 3 includes a base main body 30 and a slide rail 31; the base main body 30 is used for being fixedly connected with the wall body 800; the slide rail 31 is connected with the base main body 30; the base main body 30 has a slide groove 301, and a base through hole 301a and an annular groove 301b are opened on the bottom wall of the slide groove 301; the sliding seal 5 is slidably disposed in the chute 301; the slide rail 31 is positioned at the outer side of the slide groove 301; the sliding body 4 is slidably fitted with the slide rail 31. This arrangement makes the sliding seal 5 stable to install and not easily move.
More specifically, the base main body 30 is provided with a mounting through hole 30a, and a fastener such as a bolt or a screw can pass through the mounting through hole 30a to fasten and connect the base main body 30 and the wall body 800.
With continued reference to fig. 1, the chute 301, the slide rail 31 and the sliding seal 5 are arc-shaped. This makes it possible to make the sliding path of the sliding body 4, the probe 1, and the sliding seal 5 circular arc-shaped.
As shown in fig. 1, 2, and 3, the slide body 4 includes a main body portion 40 and a slide block 41; the main body part 40 is in sliding fit with the base 3; the slide block 41 is slidably provided on the main body portion 40; the sliding direction of the sliding block 41 relative to the main body 40 is the axial direction of the connecting through hole; the probe 1 is mounted on the slider 41; the slider 41 is used to drive the probe 1 to penetrate through the wall body through hole 800a and extend into the inner side of the wall body 800. This arrangement allows the probe 1 to have multiple directions of motion.
With continued reference to fig. 2, the bottom of the main body 40 has a sliding hook 40a, and the sliding hook 40a is slidably engaged with the slide rail 31.
In one embodiment, the sliding path of the main body 40 on the base 3 is circular arc; the probe 1 is disposed along the sliding direction of the slide block 41 with respect to the main body portion 40; the sliding direction of the slide block 41 with respect to the main body 40 is a radial direction of the sliding path of the main body 40. In this embodiment, the base main body 30 and the wall body 800 need to be arranged concentrically, so that the sliding direction of the slide block 41 with respect to the main body 40 is the radial direction of the wall body 800, and the direction of the sliding path of the main body 40 on the base 3 is the circumferential direction of the wall body 800.
In a more specific embodiment, the mobile probe measurement device 900 further includes a first drive assembly 6 and a second drive assembly 7; the first driving assembly 6 and the second driving assembly 7 are respectively installed on the main body part 40; the first driving component 6 is used for driving the main body part 40 to slide along the base 3 so as to drive the probe 1 to slide along the base 3; the second driving assembly 7 is used for driving the sliding block 41 to slide on the main body portion 40, so as to drive the probe 1 to penetrate through the wall body through hole 800a and extend into the inner side of the wall body 800.
In one embodiment, the first drive assembly 6 and the second drive assembly 7 are both motor assemblies. Wherein the first drive assembly 6 has a drive wheel 6 a. The base 3 further includes a guide rail 32, and the guide rail 32 is attached to the base main body 30 and located outside the slide groove 301. The guide rail 32 and the slide rail 31 are respectively located on both sides of the slide groove 301 and are arranged in parallel.
The drive wheels 6a are in rolling engagement with the guide rails 32, and the slide body 4 slides on the base 3 by the rolling of the drive wheels 6 a.
The second driving assembly 7 may use a lead screw to drive the sliding block 41 to slide relative to the main body portion 40.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make modifications and variations without departing from the spirit and scope of the present invention.
Claims (10)
1. A mobile probe measurement apparatus comprising a probe (1), the probe (1) being adapted to extend through a wall through-hole (800a) of a wall (800) into an inner side of the wall (800) to measure a flow field within the wall (800); characterized in that the mobile probe measuring device (900) further comprises a base (3), a sliding body (4) and a sliding seal (5);
the probe (1) is mounted on the sliding body (4), and the sliding body (4) is slidably arranged on the base (3);
the base (3) is provided with a base through hole (301 a); the sliding seal (5) has a connecting through hole; the probe (1) is in sealing fit with the shaft hole of the connecting through hole; the sliding seal (5) is slidably arranged on the base (3) to seal the base through hole (301 a); the probe (1) penetrates through the base through hole (301 a);
the base (3) is used for being mounted on the wall body (800); the sliding main body (4) is used for driving the probe (1) and the sliding sealing piece (5) to slide along the base (3) so that the probe (1) moves relative to the wall body (800) and different positions of the flow field are measured.
2. The mobile probe measurement device of claim 1, wherein the mobile probe measurement device (900) further comprises a sealing ring (2); the sealing ring (2) is fixedly arranged on the base (3) and surrounds the base through hole (301 a); the sliding sealing element (5) is abutted to the sealing ring (2).
3. The mobile probe measuring device according to claim 2, wherein the base (3) further has an annular groove (301b), the annular groove (301b) surrounding the base through hole (301 a); the sealing ring (2) is arranged in the annular groove (301 b).
4. The mobile probe measurement device according to claim 3, wherein the base (3) comprises a base body (30) and a slide rail (31); the base main body (30) is fixedly connected with the wall body (800); the slide rail (31) is connected with the base main body (30);
the base main body (30) is provided with a sliding groove (301), and the base through hole (301a) and the annular groove (301b) are formed in the bottom wall of the sliding groove (301);
the sliding seal (5) is slidably arranged in the chute (301); the sliding rail (31) is positioned on the outer side of the sliding groove (301); the sliding main body (4) is in sliding fit with the sliding rail (31).
5. A mobile probe measuring device according to claim 3, characterized in that the sealing ring (2) is a rubber ring.
6. The mobile probe measuring device according to claim 1, wherein the sliding body (4) comprises a main body portion (40) and a sliding block (41); the main body part (40) is in sliding fit with the base (3); the sliding block (41) is slidably arranged on the main body part (40); the sliding direction of the sliding block (41) relative to the main body part (40) is the axial direction of the connecting through hole;
The probe (1) is mounted on the sliding block (41); the sliding block (41) is used for driving the probe (1) to penetrate through the wall body through hole (800a) and extend into the inner side of the wall body (800).
7. The mobile probe measuring device according to claim 6, wherein the sliding path of the main body portion (40) on the base (3) is a circular arc;
the probe (1) is arranged along the sliding direction of the sliding block (41) relative to the main body part (40); the sliding direction of the sliding block (41) relative to the main body part (40) is the radial direction of the sliding path of the main body part (40).
8. The mobile probe measurement device of claim 6, wherein the mobile probe measurement device (900) further comprises a first drive assembly (6) and a second drive assembly (7); the first driving assembly (6) and the second driving assembly (7) are respectively installed on the main body part (40);
the first driving component (6) is used for driving the main body part (40) to slide along the base (3) so as to drive the probe (1) to slide along the base (3);
the second driving component (7) is used for driving the sliding block (41) to slide on the main body part (40) so as to drive the probe (1) to penetrate through the wall body through hole (800a) and extend into the inner side of the wall body (800).
9. The moving probe measuring device according to claim 4, characterized in that the slide groove (301), the slide rail (31) and the slide seal (5) are arc-shaped.
10. The mobile probe measuring device according to claim 3, wherein the base through hole (301a) is an elongated hole and the annular groove (301b) is an elongated groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910437858.7A CN111982524A (en) | 2019-05-24 | 2019-05-24 | Mobile probe measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910437858.7A CN111982524A (en) | 2019-05-24 | 2019-05-24 | Mobile probe measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN111982524A true CN111982524A (en) | 2020-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910437858.7A Pending CN111982524A (en) | 2019-05-24 | 2019-05-24 | Mobile probe measuring device |
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| CN (1) | CN111982524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236594A (en) * | 2021-05-21 | 2021-08-10 | 西安交通大学 | Device and method for testing internal flow field of compressor/axial turbine |
| CN115235522A (en) * | 2022-07-01 | 2022-10-25 | 北京航空航天大学 | Flow channel measuring device and measuring method thereof |
| CN116296238A (en) * | 2023-05-22 | 2023-06-23 | 中国航发四川燃气涡轮研究院 | Probe clamping device for measuring fan-shaped flow field of turbine |
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| CN106989932A (en) * | 2016-12-31 | 2017-07-28 | 重庆大学 | Measure the three-dimensional air feeders gearshift of fanjet interstage flow multi-section aerodynamic parameter |
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| DE202013103668U1 (en) * | 2013-08-13 | 2013-09-03 | Envirochemie Gmbh | Retractable housing |
| CN204692580U (en) * | 2015-05-22 | 2015-10-07 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of probe sealing configuration |
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| CN113236594A (en) * | 2021-05-21 | 2021-08-10 | 西安交通大学 | Device and method for testing internal flow field of compressor/axial turbine |
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| CN115235522A (en) * | 2022-07-01 | 2022-10-25 | 北京航空航天大学 | Flow channel measuring device and measuring method thereof |
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