CN109489866A - A kind of measurement convex block heat flux distribution probe - Google Patents
A kind of measurement convex block heat flux distribution probe Download PDFInfo
- Publication number
- CN109489866A CN109489866A CN201811494220.9A CN201811494220A CN109489866A CN 109489866 A CN109489866 A CN 109489866A CN 201811494220 A CN201811494220 A CN 201811494220A CN 109489866 A CN109489866 A CN 109489866A
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- convex block
- heat flux
- measurement
- flux distribution
- probe
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- 238000005259 measurement Methods 0.000 title claims abstract description 62
- 239000000523 sample Substances 0.000 title claims abstract description 49
- 230000004907 flux Effects 0.000 title claims abstract description 44
- 238000009826 distribution Methods 0.000 title claims abstract description 43
- 239000011159 matrix material Substances 0.000 claims abstract description 29
- 230000008859 change Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- -1 support system Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 8
- 238000004088 simulation Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
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 present invention relates to a kind of measurement convex block heat flux distribution probes, especially a kind of to be applied to aerospace craft thermal protection material
Expect the probe measured in ground simulation test for the heat flux distribution of convex block type structure, can make in high-temperature high-speed airflow
With.
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.
Summary of the invention
Technical problem solved by the present invention is having overcome the deficiencies of the prior art and provide a kind of measurement convex block heat flux distribution
Probe can measure heat flux distribution in different parameters combination lower protruding block, variation tendency be obtained, to estimate different parameters lower protruding block
Heat flux distribution, to meet current domestic aerospace craft thermal protection ground simulation test requirement.
The technical solution of the invention is as follows: a kind of measurement convex block heat flux distribution probe, it is characterised in that including carriage support
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 prominent
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 protrusion,
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 protrusion 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 advantages of the present invention over the prior art are that:
(1) present invention combines convex block, simulation different-diameter protrusion by replacement by adopting a split structure by probe
Stream situation, can be used for researching high-temperature high-speed flow and flow through the protrusion of different-diameter to the shadow of the heat flux distribution around protrusion
It rings；
(2) present invention adjusts bump height and obtains different diameter high specific parameters by one lifter of setting in combination convex block, can
To flow through influence of the protrusion of the different high ratios of diameter to the heat flux distribution around protrusion for researching high-temperature high-speed flow；
(3) present invention can drive probe pitching and rolling, change the posture of combination convex block relatively-high temperature high-speed flow, can
Influence of the convex block of different posture positions to the heat flux distribution around protrusion is flowed through with researching high-temperature high-speed flow.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the sensor schematic being distributed around convex block of the present invention.
Specific embodiment
In view of the deficiencies of the prior art, the present invention proposes a kind of probes for measuring convex block heat flux distribution, can be applied to navigate
It is as shown in Figure 1 structural schematic diagram of the invention in its aircraft convex block Aerodynamic Heating ground simulation test, is illustrated in figure 2 this
The sensor schematic being distributed around invention convex block, Heat flow site Q1~Q22 equiangular helical spiral distribution of bottom of chamber, the present invention are a kind of
The probe of measurement convex block heat flux distribution includes support system 1, probe matrix 2, combination convex block 3, and support system 1 includes flat bracket
11, attack angle mechanism 12, attack angle mechanism 12 can drive the realization of flat bracket 11 to be freely rotated and rolling.Matrix 2 of popping one's head in is one
The steel structure part of square-outside and round-inside, outside dimension are 150mm × 150mm × 50mm, and a diameter 120mm through-hole is arranged at center,
Combining convex block 3 includes an outer diameter 120mm, the measurement plate 31 of the steel of aperture at center, lifter 32 and with measurement plate center
The consistent steel cylindrical projection 33 of opening diameter, the height of the adjustable 33 relative measurement plate 31 of cylindrical projection of lifter 32, reaches
To the purpose for changing the high ratio of diameter, 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
For 150mm × 150mm × 50mm, it is fixedly connected with probe matrix 2, probe matrix 2 is the steel structure part of a square-outside and round-inside,
Outside dimension is 150mm × 150mm × 50mm, and a diameter 120mm through-hole is arranged at center, in through-hole in installation combination convex block 3
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, measurement
Plate 31 is steel construction piece of the shape similar to cylinder, and outer diameter is fixed as 120mm, aperture at convenient and probe matrix 2 center
It connects, aperture at 31 center of measurement plate, opening diameter and cylindrical projection 33 are consistent, and 31 upper surface of measurement plate is mounted with multiple hot-fluids
Sensor flows through cylindrical protrusion to gas periphery bring changes of heat flux, the rule of sensor distribution for measuring high-temperature high-speed airflow
Rule is centered on cylindrical protrusion, is in the traditional thread binding distribution of a plurality of parabolic.Cylindrical projection 33 is a steel cylindrical structural part, is mounted on
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, and cylindrical projection 33 is one
A important component, the cylindrical projection 33 by replacing different-diameter can obtain different heat flux distributions, if replacement is different straight
The cylindrical projection 33 of diameter, then be also required to replace center opening diameter and the consistent measurement plate 31 of 33 diameter of cylindrical projection simultaneously,
33 other end of cylindrical projection is connect with lifter 32, and lifter 32 is a cylinder steel mechanism, with the fixed company of probe matrix 2
It connects, central axes are overlapped with 33 central axes of cylindrical protrusion, control cylindrical projection 33 in 31 upper surface of measurement plate by helicitic texture
Highly.
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 present invention, innovative point includes probe matrix and support system
The measurement plate installation plug calorimeter of convex block is combined equipped with combination convex block in connection, inside；Combination convex block is field-replaceable unit, root
According to the convex block of different situation replacement different-diameters；Contain lifter inside combination convex block, adjustable floor height adjusts diameter
High ratio.
The content that description in the present invention is not described in detail 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 plug calorimeter, 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 protrusion,.
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 protrusion (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 method for measuring convex block heat flux distribution, it is characterised in that include the following steps:
(1) probe of assembling measurement convex block heat flux distribution；
(2) flat bracket (11) through hole that convex block (3) are mounted on support system will be combined, top surface keeps flushing, and uses lifter
(32) height for adjusting cylindrical projection (33) range measurement plate (31), by attack angle mechanism (12) by flat bracket (11) to set
Pitching and roll angle are sent into the high temperature and high speed flow field generated by arc tunnel, and heat flow density is measured, after the completion of test, control
Attack angle mechanism (12) is retracted into homeposition, changes height using lifter (32), obtains the identical posture of the high ratio of different diameters
Heat flux calculation；
(3) change setting pitching and roll angle by attack angle mechanism (12), repeat the Heat flux calculation of different aspect ratios,
And then obtain the heat flux distribution under the flow parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494220.9A CN109489866B (en) | 2018-12-07 | 2018-12-07 | Probe for measuring heat flow distribution of protruding block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811494220.9A CN109489866B (en) | 2018-12-07 | 2018-12-07 | Probe for measuring heat flow distribution of protruding block |
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| Publication Number | Publication Date |
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| CN109489866A true CN109489866A (en) | 2019-03-19 |
| CN109489866B CN109489866B (en) | 2023-12-29 |
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| CN201811494220.9A Active CN109489866B (en) | 2018-12-07 | 2018-12-07 | Probe for measuring heat flow distribution of protruding block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823494A (en) * | 2019-11-29 | 2020-02-21 | 北京临近空间飞行器系统工程研究所 | Thermal response arc wind tunnel test device and method for heat-insulating material |
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|---|---|---|---|---|
| WO2002095337A1 (en) * | 2001-05-19 | 2002-11-28 | Eads Deutschland Gmbh | Sensor structure and sensor arrangement for measuring flow data on a flow body |
| US6824305B1 (en) * | 2002-08-16 | 2004-11-30 | The Texas A & M University System | Local wall heat flux/temperature meter for convective flow and method of utilizing same |
| CN105203591A (en) * | 2015-09-24 | 2015-12-30 | 中国航天空气动力技术研究院 | Measurement method of hot wall heat flux density of spacecraft test model |
| CN206523251U (en) * | 2017-02-14 | 2017-09-26 | 中国航天空气动力技术研究院 | A kind of reusable plug heat flow density calorimeter |
| CN108007957A (en) * | 2017-12-26 | 2018-05-08 | 中国航天空气动力技术研究院 | A kind of model support attack angle mechanism |
| CN209230829U (en) * | 2018-12-07 | 2019-08-09 | 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 CN201811494220.9A patent/CN109489866B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002095337A1 (en) * | 2001-05-19 | 2002-11-28 | Eads Deutschland Gmbh | Sensor structure and sensor arrangement for measuring flow data on a flow body |
| US6824305B1 (en) * | 2002-08-16 | 2004-11-30 | The Texas A & M University System | Local wall heat flux/temperature meter for convective flow and method of utilizing same |
| CN105203591A (en) * | 2015-09-24 | 2015-12-30 | 中国航天空气动力技术研究院 | Measurement method of hot wall heat flux density of spacecraft test model |
| CN206523251U (en) * | 2017-02-14 | 2017-09-26 | 中国航天空气动力技术研究院 | A kind of reusable plug heat flow density calorimeter |
| CN108007957A (en) * | 2017-12-26 | 2018-05-08 | 中国航天空气动力技术研究院 | A kind of model support attack angle mechanism |
| CN209230829U (en) * | 2018-12-07 | 2019-08-09 | 中国航天空气动力技术研究院 | A kind of measurement convex block heat flux distribution probe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823494A (en) * | 2019-11-29 | 2020-02-21 | 北京临近空间飞行器系统工程研究所 | Thermal response arc wind tunnel test device and method for heat-insulating material |
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| CN109489866B (en) | 2023-12-29 |
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