CN107764504A - A kind of device for measuring cloud and mist uniformity - Google Patents
A kind of device for measuring cloud and mist uniformity Download PDFInfo
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- CN107764504A CN107764504A CN201710830800.XA CN201710830800A CN107764504A CN 107764504 A CN107764504 A CN 107764504A CN 201710830800 A CN201710830800 A CN 201710830800A CN 107764504 A CN107764504 A CN 107764504A
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- floor
- cloud
- grid
- mist
- test chamber
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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
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
A kind of device of measurement cloud and mist uniformity of the present invention, including horizontal floor [1], vertical floor [2], frame [3], fixing bolt [5] and adaptor [6], a plurality of horizontal floor [1] is equidistantly arranged as grid with a plurality of vertical floor [2], the checkerwork cell of grid is the identical square of size, grid is embedded in frame [3], and checkerwork cell is uniformly distributed in test chamber [4] cross section.A kind of device of measurement cloud and mist uniformity of the present invention, using one piece of steel plate overall processing and the processing technology of wire cutting, the depth of parallelism and floor perpendicularity of grid can be ensured, so as to ensure the measurement precision of cloud parameter.
Description
Technical field
The invention belongs to aviation aerodynamic force wind-tunnel technique field, is related to a kind of device for measuring cloud and mist uniformity, tool
It is a kind of calibration of cloud parameter and measuring apparatus in icing wind tunnel that body, which is said, and it is uniform that test section cloud and mist is measured during for icing tests
Property with cloud and mist coverage.
Background technology
Under specific meteorological condition, substantial amounts of super-cooling waterdrop is contained in cloud layer, when aircraft is passed through containing super-cooling waterdrop
During cloud layer, water droplet can strike the surface of aircraft, and icing phenomenon occurs.Aircraft icing is one of influence aircraft safety important
Factor, airframe icing change the profile of aircraft, add the roughness on surface, so as to change the aerodynamic characteristic of aircraft
And performance, make the hydraulic performance decline of aircraft or make power failure, and the longitudinal stability of aircraft can be made to deteriorate suddenly, or even meeting
There is anti-manipulation phenomenon, therefore easily cause aviation accident, seriously threaten flight safety.
Wind tunnel test, numerical simulation and flight test are to carry out three big important means of aircraft icing research, wherein freezing
Wind tunnel test is most basic means.Icing wind tunnel establishes super-cooling waterdrop by spraying system, refrigeration system etc. in test section
Cloud and mist flow field, to simulate aerial icing meteorology condition, therefore needed before icing tests to the cloud parameter in test section flow field
Calibrated and measured.The large and medium-sized icing wind tunnel construction in China just starts to walk, not yet with a kind of relatively good wind-tunnel
Cloud parameter measurement apparatus.
The content of the invention
The purpose of the present invention is：For the calibration and measurement of cloud parameter, a kind of cloud and mist uniformity that can measure is proposed
Device --- grid, in icing wind tunnel test section.The present invention solves the problems, such as it is the cloud and mist to icing wind tunnel test section
Parameter is calibrated and measured.
In view of the above mentioned problem of prior art, according to one side disclosed by the invention, the present invention uses following technology
Scheme：
A kind of device for measuring cloud and mist uniformity, including horizontal floor [1], vertical floor [2], frame [3], fixing bolt
[5] and adaptor [6]；
Wherein, a plurality of horizontal floor [1] is equidistantly arranged as grid with a plurality of vertical floor [2], and the checkerwork cell of grid is chi
Very little identical square, grid are embedded in frame [3], and checkerwork cell is uniformly distributed in test chamber [4] cross section, and
Full of test chamber [4] cross section；Adaptor [6] is fixed on the top and bottom of frame [3]；Measure the dress of cloud and mist uniformity
Put after being completed, be placed on the interior model pivot position of test chamber [4], by fixing bolt [5] by adaptor [6]
It is fixed in test chamber [4], grid cross section is vertical with test chamber [4] axis.
Characterized in that, described device is made up of 10 horizontal floors [1] and 10 vertical floors [2], floor thickness
3mm, depth 40mm, the spacing between floor is all equal, shares 81 interior lattice.
Characterized in that, described device is connected by 4 adaptors [6] with test chamber [4].
Characterized in that, described device is made of one piece of steel plate overall processing, to ensure the depth of parallelism of grid, employ
The processing technology of wire cutting, it ensure that the perpendicularity between horizontal floor and vertical floor.
Characterized in that, described device is processed using stainless steel, the corrosion in the moist working environment of cloud and mist is prevented.
Beneficial effect：
The device of a kind of measurement cloud and mist uniformity of the present invention, using one piece of steel plate overall processing and the processing work of wire cutting
Skill, the depth of parallelism and floor perpendicularity of grid can be ensured, so as to ensure the measurement precision of cloud parameter.
Brief description of the drawings
Fig. 1 is the device front view of measurement cloud and mist uniformity；
Fig. 2 is the device side view of measurement cloud and mist uniformity；
Fig. 3 be measurement cloud and mist uniformity device in test chamber installation site figure.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
As shown in Figure 1-2, the device of a kind of measurement cloud and mist uniformity of the invention, including horizontal floor [1], vertical floor
[2], frame [3], fixing bolt [5] and adaptor [6]；A plurality of horizontal floor [1] equidistantly arranges with a plurality of vertical floor [2]
For grid, the checkerwork cell of grid is the identical square of size, and grid is embedded in frame [3], and checkerwork cell is in test chamber
[4] it is uniformly distributed in cross section, and is full of test chamber [4] cross section；Adaptor [6] be fixed on frame [3] top and
Bottom；After the device of measurement cloud and mist uniformity is completed, the interior model pivot position of test chamber [4] is placed on, is led to
Cross fixing bolt [5] adaptor [6] is fixed in test chamber [4], grid cross section is hung down with test chamber [4] axis
Directly.
Grid is made up of 10 horizontal floors [1] and 10 vertical floors [2], floor thickness 3mm, depth 40mm, floor
Between spacing be all equal, share 81 interior lattice, monoblock grid is connected by 4 adaptors with test section.To ensure lattice
The depth of parallelism of grid, floor not using welding by the way of, but use one piece of steel plate overall processing, to prevent from getting rusty, grid use
Stainless steel material fabricates.Grid is used in icing wind tunnel, cloud and mist uniformity and covering in test section when measuring icing tests
Scope, model pivot position in test section is arranged on during use.
The operation principle of apparatus of the present invention is：The device for measuring cloud and mist uniformity is arranged on mould in icing wind tunnel test section
Type pivot position, grid cross section and test section central axis upright.Under certain wind speed, the frost below -20 DEG C
Ice ice-formation condition, spraying system are continuously sprayed 100 seconds, and droplets impact can freeze immediately on the floor that face thickness windward is 3mm
And increase thickness, using the icing thickness on kind of calliper floor, obtain cloud and mist uniformity and coverage in test section.
Claims (5)
1. a kind of device for measuring cloud and mist uniformity, including horizontal floor [1], vertical floor [2], frame [3], fixing bolt
[5] and adaptor [6]；
Wherein, a plurality of horizontal floor [1] is equidistantly arranged as grid with a plurality of vertical floor [2], and the checkerwork cell of grid is complete for size
Exactly the same square, grid are embedded in frame [3], and checkerwork cell is uniformly distributed in test chamber [4] cross section, and is full of
Test chamber [4] cross section；Adaptor [6] is fixed on the top and bottom of frame [3]；Measure the device group of cloud and mist uniformity
After the completion of dress, the interior model pivot position of test chamber [4] is placed on, it is by fixing bolt [5] that adaptor [6] is fixed
In test chamber [4], grid cross section is vertical with test chamber [4] axis.
2. a kind of device for measuring cloud and mist uniformity as claimed in claim 1, it is characterised in that described device is by 10 levels
Floor [1] and 10 vertical floors [2] compositions, floor thickness 3mm, depth 40mm, the spacing between floor be all it is equal, altogether
There are 81 interior lattice.
3. a kind of device for measuring cloud and mist uniformity as claimed in claim 1, it is characterised in that characterized in that, the dress
Put and be connected by 4 adaptors [6] with test chamber [4].
4. a kind of device for measuring cloud and mist uniformity as claimed in claim 1, it is characterised in that characterized in that, the dress
Put and be made of one piece of steel plate overall processing, to ensure the depth of parallelism of grid, employ the processing technology of wire cutting, ensure that water
Perpendicularity between flat floor and vertical floor.
5. a kind of device for measuring cloud and mist uniformity as claimed in claim 1, it is characterised in that characterized in that, the dress
Put and processed using stainless steel, prevent the corrosion in the moist working environment of cloud and mist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830800.XA CN107764504A (en) | 2017-09-15 | 2017-09-15 | A kind of device for measuring cloud and mist uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830800.XA CN107764504A (en) | 2017-09-15 | 2017-09-15 | A kind of device for measuring cloud and mist uniformity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764504A true CN107764504A (en) | 2018-03-06 |
Family
ID=61265601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710830800.XA Pending CN107764504A (en) | 2017-09-15 | 2017-09-15 | A kind of device for measuring cloud and mist uniformity |
Country Status (1)
| Country | Link |
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| CN (1) | CN107764504A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459207A (en) * | 2018-10-17 | 2019-03-12 | 国家电投集团黄河上游水电开发有限责任公司 | A kind of wind field arrangement apparatus for the experiment of condenser model wind tunnel |
| CN112729762A (en) * | 2021-03-29 | 2021-04-30 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for measuring uniformity of icing grid and cloud and mist field |
| CN113092058A (en) * | 2021-06-09 | 2021-07-09 | 中国空气动力研究与发展中心低速空气动力研究所 | Water feeding distribution measuring device and measuring method for wind tunnel test |
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| JP2001004485A (en) * | 1999-06-18 | 2001-01-12 | Ishikawajima Harima Heavy Ind Co Ltd | Turbulence control grid device of wind tunnel |
| CN103471804A (en) * | 2013-07-15 | 2013-12-25 | 中国商用飞机有限责任公司 | Method and device for water-mist uniformity control |
| CN106081155A (en) * | 2016-05-31 | 2016-11-09 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft anti-deicing system test analog |
| CN205958224U (en) * | 2016-06-12 | 2017-02-15 | 哈尔滨工业大学深圳研究生院 | Adopt vibration grid to regulate and control wind -tunnel test device of turbulence scale in real time |
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2017
- 2017-09-15 CN CN201710830800.XA patent/CN107764504A/en active Pending
Patent Citations (4)
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|---|---|---|---|---|
| JP2001004485A (en) * | 1999-06-18 | 2001-01-12 | Ishikawajima Harima Heavy Ind Co Ltd | Turbulence control grid device of wind tunnel |
| CN103471804A (en) * | 2013-07-15 | 2013-12-25 | 中国商用飞机有限责任公司 | Method and device for water-mist uniformity control |
| CN106081155A (en) * | 2016-05-31 | 2016-11-09 | 中国航空工业集团公司西安飞机设计研究所 | A kind of aircraft anti-deicing system test analog |
| CN205958224U (en) * | 2016-06-12 | 2017-02-15 | 哈尔滨工业大学深圳研究生院 | Adopt vibration grid to regulate and control wind -tunnel test device of turbulence scale in real time |
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| BELLUCCI M: "Calibration of the CIRA IWT in the Low Speed Configuration", 《45TH AIAA AEROSPACE SCIENCES MEETING AND EXHIBIT》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459207A (en) * | 2018-10-17 | 2019-03-12 | 国家电投集团黄河上游水电开发有限责任公司 | A kind of wind field arrangement apparatus for the experiment of condenser model wind tunnel |
| CN112729762A (en) * | 2021-03-29 | 2021-04-30 | 中国空气动力研究与发展中心低速空气动力研究所 | Method for measuring uniformity of icing grid and cloud and mist field |
| CN113092058A (en) * | 2021-06-09 | 2021-07-09 | 中国空气动力研究与发展中心低速空气动力研究所 | Water feeding distribution measuring device and measuring method for wind tunnel test |
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Application publication date: 20180306 |