CN209230829U - A kind of measurement convex block heat flux distribution probe - Google Patents
A kind of measurement convex block heat flux distribution probe Download PDFInfo
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- CN209230829U CN209230829U CN201822057853.5U CN201822057853U CN209230829U CN 209230829 U CN209230829 U CN 209230829U CN 201822057853 U CN201822057853 U CN 201822057853U CN 209230829 U CN209230829 U CN 209230829U
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- convex block
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Abstract
A kind of measurement convex block heat flux distribution probe, including support system, probe matrix, combination convex block, support system is fixedly connected with probe matrix, it can change pitch angle, the roll angle of probe matrix, the through-hole installation combination convex block of probe matrix, combination convex block has been evenly arranged plug calorimeter, flows through cylindrical protrusion to gas periphery bring changes of heat flux for measuring high-temperature high-speed airflow.
Description
Technical field
The utility model relates to a kind of measurement convex block heat flux distribution probe, especially a kind of aerospace craft heat that is applied to is prevented
The probe measured in protective material ground simulation test for the heat flux distribution of convex block type structure, can be in high-temperature high-speed airflow
It uses.
Background technique
Aerospace craft contour structures are often provided with the protrusion knot such as hoisting port in outside due to assembling component
Structure, the class formation can be led to structural failure, designer by airflow function in flight high speed processes due to hot-spot
It should be understood that its heat flux distribution, is then protected.
The principal element for influencing convex block heat flux distribution has very much, can substantially be divided into internal structure factor and refer to the straight of convex block
Diameter, height are usually embodied with diameter height ratio；External environmental factor: aircraft flight direction, the recovery enthalpy of air-flow and surface pressure
Power is usually indicated with flight attitude and local flow parameter.Measuring probe common at present is determined only for one group of parameter
Contour structures account for, once individual parameters are changed, can only retest, can not estimate.
Utility model content
The technical issues of the utility model solves is: having overcome the deficiencies of the prior art and provide a kind of measurement convex block hot-fluid
Distribution probe can measure heat flux distribution in different parameters combination lower protruding block, obtain variation tendency, convex under different parameters to estimate
The heat flux distribution of block, to meet current domestic aerospace craft thermal protection ground simulation test requirement.
The technical solution of the utility model is: a kind of measurement convex block heat flux distribution probe, it is characterised in that including branch
Frame system, probe matrix, combination convex block, in which:
Support system is fixedly connected with probe matrix, thus it is possible to vary pitch angle, the roll angle for matrix of popping one's head in, matrix of popping one's head in
Through-hole installation combination convex block, combination convex block have been evenly arranged plug calorimeter, and for measuring high-temperature high-speed airflow, to flow through cylinder convex
It rises to gas periphery bring changes of heat flux.
The angle of attack section of the probe matrix is -20 °~+20 °, and rolling section is -45 °~+45 °.
The probe matrix is the structural member of square-outside and round-inside, and through-hole is arranged at center.
The support system includes flat bracket, attack angle mechanism, and attack angle mechanism can drive flat bracket to realize freely
Rotation and rolling, attack angle mechanism one end are fixed with ground, and the other end is fixedly connected with bracket, and bracket is a hollow box, with
Probe matrix is fixedly connected.
The combination convex block includes the measurement plate of aperture at center, lifter, consistent with measurement plate center opening diameter
Cylindrical projection, the height of the adjustable cylindrical projection relative measurement plate of lifter.
The measurement plate has been evenly arranged plug calorimeter, the rule of sensor distribution be centered on cylindrical projection,
In the traditional thread binding distribution of a plurality of parabolic.
The lifter is a cylinder mechanism, is fixedly connected with probe matrix, and central axes and cylindrical projection axis
Line is overlapped, and controls cylindrical projection in the height of measurement plate upper surface by helicitic texture.
The cylindrical projection and measurement plate change diameter height than when, need to replace simultaneously.
The lifter is steel mechanism, and probe matrix is steel mechanism, and bracket is steel mechanism, and measurement plate is steel
Mechanism, cylindrical projection are steel mechanism.
A method of measurement convex block heat flux distribution includes the following steps:
(1) probe of assembling measurement convex block heat flux distribution；
(2) combination convex block is mounted on to the flat bracket through hole of support system, top surface keeps flushing, be adjusted with lifter
Flat bracket is set pitching by attack angle mechanism and roll angle is sent by electric arc wind by the height of cylindrical projection range measurement plate
In the high temperature and high speed flow field that hole generates, heat flow density is measured, after the completion of test, control attack angle mechanism is retracted into homeposition,
Change height using lifter, obtains the Heat flux calculation of the identical posture of the high ratio of different diameters；
(3) setting pitching and roll angle are changed by attack angle mechanism, repeat the Heat flux calculation of different aspect ratios,
And then obtain the heat flux distribution under the flow parameter.
The utility model compared with prior art the advantages of be:
(1) the utility model passes through is adopted a split structure by probe, is combined convex block by replacement, is simulated different-diameter
Protrusion streams situation, can be used for researching high-temperature high-speed flow and flows through the protrusion of different-diameter to the heat flux distribution around protrusion
Influence；
(2) the utility model adjusts bump height and obtains different diameter height than ginseng by the way that a lifter is arranged in combination convex block
Number can be used for researching high-temperature high-speed flow and flow through influence of the protrusion of the different high ratios of diameter to the heat flux distribution around protrusion；
(3) the utility model can drive probe pitching and rolling, change the appearance of combination convex block relatively-high temperature high-speed flow
State can flow through influence of the convex block of different posture positions to the heat flux distribution around protrusion with researching high-temperature high-speed flow.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sensor schematic being distributed around the utility model convex block.
Specific embodiment
The utility model in view of the deficiencies of the prior art, proposes a kind of probe for measuring convex block heat flux distribution, can apply
It is as shown in Figure 1 the structural schematic diagram of the utility model, such as Fig. 2 in aerospace craft convex block Aerodynamic Heating ground simulation test
It show the sensor schematic being distributed around the utility model convex block, Heat flow site Q1~Q22 equiangular helical spiral point of bottom of chamber
Cloth, a kind of probe for measuring convex block heat flux distribution of the utility model include support system 1, probe matrix 2, combination convex block 3, bracket
System 1 includes flat bracket 11, attack angle mechanism 12, and attack angle mechanism 12 can drive the realization of flat bracket 11 to be freely rotated and roll
Turn.Matrix 2 pop one's head in as the steel structure part of a square-outside and round-inside, outside dimension is 150mm × 150mm × 50mm, is arranged at center
One diameter 120mm through-hole, combination convex block 3 include an outer diameter 120mm, the measurement plate 31 of the steel of aperture, lifting at center
Device 32 and with the consistent steel cylindrical projection 33 of measurement plate center opening diameter, the adjustable cylindrical projection 33 of lifter 32 is opposite
The height of measurement plate 31, achievees the purpose that the change high ratio of diameter, and measurement plate 31 has been evenly arranged plug calorimeter.
Attack angle mechanism 12 is the machinery that can carry out rolling and pitching variation, and one end is fixed with ground, one end and branch
Frame 11 is fixedly connected, and bracket 11 is that a hollow steel box outside dimension is 180mm × 180mm × 50mm, internal cavities size
It for 150mm × 150mm × 50mm, is fixedly connected with probe matrix 2, probe matrix 2 is the steel structure of a square-outside and round-inside
Part, outside dimension are 150mm × 150mm × 50mm, and a diameter 120mm through-hole is arranged at center, installation combination convex block 3 in through-hole
In measurement plate 31,31 upper surface of measurement plate with probe 2 upper surface of matrix flush, measurement plate 31 is the component that can be replaced, survey
Template 31 is steel construction piece of the shape similar to cylinder, and outer diameter is fixed as 120mm, opens at convenient and probe matrix 2 center
Hole connects, aperture at 31 center of measurement plate, and opening diameter and cylindrical projection 33 are consistent, and 31 upper surface of measurement plate is mounted with multiple heat
Flow sensor flows through what cylindrical projection was distributed gas periphery bring changes of heat flux, sensor for measuring high-temperature high-speed airflow
Rule is centered on cylindrical projection, is in the traditional thread binding distribution of a plurality of parabolic.Cylindrical projection 33 is a steel cylindrical structural part, installation
At 31 center opening of measurement plate, 31 upper surface of measurement plate is protruded in one end, and the other end is connect with lifter 32, cylindrical projection 33
It is an important component, the cylindrical projection 33 by replacing different-diameter can obtain different heat flux distributions, if replacement is not
With the cylindrical projection 33 of diameter, then being also required to replace center opening diameter and the consistent measurement plate of 33 diameter of cylindrical projection simultaneously
31,33 other end of cylindrical projection is connect with lifter 32, and lifter 32 is a cylinder steel mechanism, fixed with probe matrix 2
Connection, central axes are overlapped with 33 central axes of cylindrical projection, control cylindrical projection 33 in 31 upper surface of measurement plate by helicitic texture
Height.
When measuring test, when measuring test, the flat bracket 11 that combination convex block 3 is mounted on support system is led to
At hole, top surface keeps flushing, and lifter 32 adjusts the height of 33 range measurement plate 31 of cylindrical projection, will be put down by attack angle mechanism 12
Board mount 11 with pitching and roll angle (the common angle of attack of simulated flight device and pitching angle range, angle of attack section are -20 °~+20 °,
Rolling is -45 °~+45 °) it is sent into the high temperature and high speed flow field generated by arc tunnel, heat flow density at this time is measured, completes to survey
After examination, attack angle mechanism 12 is retracted into homeposition, and lifter 32 changes height, the high ratio of different diameters obtained, by attack angle mechanism 12
It is sent into flow field with identical posture, completes test, after the test for completing multiple aspect ratios, test posture is changed by attack angle mechanism 12,
The test of row next round difference aspect ratio is continued on through, and then obtains the heat flux distribution under the flow parameter.
Heat flux distribution (unit kW/m under 1 Different Effects parameter of table2)
It is as shown in table 1 heat flux distribution under Different Effects parameter, which is the diameter 20mm group under same airflow parameter
It is 2 ° that convex block, which is closed, in the angle of attack, in the case of rolling is 0 °, by adjusting lifter, by height by 0mm rise to 5mm, 10mm, 20mm,
27 sensor measurement numerical value of 60mm measurement plate.Heat flow value shows that the hot-fluid for having a panel region around convex block is apparently higher than other
Region is defined as this panel region the interference range of convex block.
Statistics indicate that changing the height of convex block in the case where incoming flow parameter constant in the identical situation of diameter, that is, changing
The interference range area of the high ratio of diameter, convex block increases, but the numerical value of identical point only slightly increases in region.Then changing the angle of attack is
12 °, roll angle is 0 °, by adjusting lifter, will highly be adjusted to 27 sensor measurement numerical value of measurement plate in the case of 5mm.
The angle of attack to the influence in the interference range of convex block than interference range outside it is small；Then changing the angle of attack is 2 °, and roll angle is 10 °, is passed through
Lifter is adjusted, 27 sensor measurement numerical value of measurement plate in the case of 5mm, interference range of the roll angle to convex block will be highly adjusted to
Interior influence than interference range outside trend it is consistent；Then the combination convex block of replacement 40 convex block of diameter is 2 ° in the angle of attack, and rolling is 0 °
In the case of, by adjusting lifter, it will highly be adjusted to 27 sensor measurement numerical value of measurement plate in the case of 10mm.
Diameter increase can dramatically increase the interference range area of convex block, and the hot-fluid numerical value in interference range is with diameter height than consistent
The interference range of minor diameter is similar.Statistics indicate that air-flow increases the hot-fluid influence area around convex block as height increases, but
It is for the region nearest apart from convex block, hot-fluid is increased slightly.As the angle of attack increases, air-flow increases the hot-fluid of measurement plate, convex
Block influence area increases absolute magnitude and is less than non-influence area；As roll angle increases, air-flow is higher than measurement plate side hot-fluid another
Side；For diameter height than changing the diameter of combination convex block under same case, the hot-fluid that air-flow generates bottom of chamber is similar
In conclusion a kind of measurement convex block heat flux distribution probe of the utility model, innovative point includes probe matrix and bracket
The measurement plate installation plug calorimeter of convex block is combined equipped with combination convex block in system connection, inside；Combination convex block is exchangeable portion
Part, according to the convex block of different situation replacement different-diameters；It combines and contains lifter inside convex block, adjustable floor height,
Adjust the high ratio of diameter.
The content being not described in detail in the utility model specification belongs to the well-known technique of those skilled in the art.
Claims (10)
1. a kind of measurement convex block heat flux distribution probe, it is characterised in that including support system, probe matrix (2), convex block is combined,
In:
Support system is fixedly connected with probe matrix (2), thus it is possible to vary pitch angle, the roll angle of probe matrix (2), matrix of popping one's head in
(2) through-hole installation combination convex block, combination convex block have been evenly arranged heat flow transducer, have flowed through circle for measuring high-temperature high-speed airflow
Column protrusion is to gas periphery bring changes of heat flux.
2. a kind of measurement convex block heat flux distribution probe according to claim 1, it is characterised in that: the probe matrix
(2) angle of attack section is -20 °~+20 °, and rolling section is -45 °~+45 °.
3. a kind of measurement convex block heat flux distribution probe according to claim 1 or 2, it is characterised in that: the probe base
Body (2) is the structural member of square-outside and round-inside, and through-hole is arranged at center.
4. a kind of measurement convex block heat flux distribution probe according to claim 3, it is characterised in that: the support system packet
Flat bracket (11), attack angle mechanism (12) are included, attack angle mechanism (12) can drive flat bracket (11) to realize and be freely rotated and roll
Turn, attack angle mechanism (12) one end is fixed with ground, and the other end is fixedly connected with bracket (11), and bracket (11) is a middle short side
Frame is fixedly connected with probe matrix (2).
5. a kind of measurement convex block heat flux distribution probe according to claim 4, it is characterised in that: the combination convex block packet
Measurement plate (31), lifter (32) and the consistent cylindrical projection of measurement plate center opening diameter (33) for including aperture at center, rise
The height of device (32) adjustable cylindrical projection (33) relative measurement plate (31) drops.
6. a kind of measurement convex block heat flux distribution probe according to claim 5, it is characterised in that: the measurement plate (31)
It is evenly arranged plug calorimeter, it is in the traditional thread binding distribution of a plurality of parabolic that the rule of sensor distribution, which is centered on cylindrical projection,.
7. a kind of measurement convex block heat flux distribution probe according to claim 6, it is characterised in that: the lifter (32)
It is a cylinder mechanism, is fixedly connected with probe matrix (2), and central axes are overlapped with cylindrical projection (33) central axes, pass through spiral shell
Height of the line structure control cylindrical projection (33) in measurement plate (31) upper surface.
8. a kind of measurement convex block heat flux distribution probe according to claim 7, it is characterised in that: the cylindrical projection
(33) with measurement plate (31) change diameter height than when, need to replace simultaneously.
9. a kind of measurement convex block heat flux distribution probe according to claim 8, it is characterised in that: the lifter (32)
For steel mechanism, matrix (2) are popped one's head in as steel mechanism, and bracket (11) is steel mechanism, and measurement plate (31) is steel mechanism, cylinder
Raised (33) are steel mechanism.
10. a kind of measurement convex block heat flux distribution probe according to claim 9, it is characterised in that: the thermal-flow sensor
Device is plug calorimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822057853.5U CN209230829U (en) | 2018-12-07 | 2018-12-07 | A kind of measurement convex block heat flux distribution probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822057853.5U CN209230829U (en) | 2018-12-07 | 2018-12-07 | A kind of measurement convex block heat flux distribution probe |
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| Publication Number | Publication Date |
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| CN209230829U true CN209230829U (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822057853.5U Active CN209230829U (en) | 2018-12-07 | 2018-12-07 | A kind of measurement convex block heat flux distribution probe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489866A (en) * | 2018-12-07 | 2019-03-19 | 中国航天空气动力技术研究院 | A kind of measurement convex block heat flux distribution probe |
-
2018
- 2018-12-07 CN CN201822057853.5U patent/CN209230829U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489866A (en) * | 2018-12-07 | 2019-03-19 | 中国航天空气动力技术研究院 | A kind of measurement convex block heat flux distribution probe |
| CN109489866B (en) * | 2018-12-07 | 2023-12-29 | 中国航天空气动力技术研究院 | Probe for measuring heat flow distribution of protruding block |
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