CN106908185A - A kind of pore pressure force probe of hemispherical head five is combed - Google Patents

A kind of pore pressure force probe of hemispherical head five is combed Download PDF

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Publication number
CN106908185A
CN106908185A CN201710126719.3A CN201710126719A CN106908185A CN 106908185 A CN106908185 A CN 106908185A CN 201710126719 A CN201710126719 A CN 201710126719A CN 106908185 A CN106908185 A CN 106908185A
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CN
China
Prior art keywords
probe
hole
pressure
pole
combed
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Pending
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CN201710126719.3A
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Chinese (zh)
Inventor
马宏伟
马融
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Beihang University
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Beihang University
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Application filed by Beihang University filed Critical Beihang University
Priority to CN201710126719.3A priority Critical patent/CN106908185A/en
Publication of CN106908185A publication Critical patent/CN106908185A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M9/00Aerodynamic testing; Arrangements in or on wind tunnels
    • G01M9/06Measuring arrangements specially adapted for aerodynamic testing

Abstract

The invention belongs to pressure test technical field, disclose a kind of pore pressure force probe of hemispherical head five comb, comprising probe, pole, pressure guiding pipe, probe is the cylinder that head is hemisphere, quantity determines according to measurement request, at least 3, pole difference is separately fixed to open up to measurement position, the hemisphere summit of probe and side are provided with 5 pressure experience holes altogether, experience hole for 5 to be connected with 5 pressure guiding pipes being encapsulated in probe respectively, passage is provided with inside pole, the other end of pressure guiding pipe is drawn through the passage in pole by probe tails.The present invention is demarcated by calibration wind tunnel, stagnation pressure, static pressure, deflection angle, the angle of pitch and the Mach number that can measure multiple locus simultaneously to flow, it is adaptable to measured subsonic compressor import, exported distribution of the three-dimensional flow field parameter along blade height direction.Compared with the pressure probe of existing measurement three-dimensional flow field, can simultaneously measure multiple locus to flow parameter, farthest shorten time of measuring, reduce experimentation cost.

Description

A kind of pore pressure force probe of hemispherical head five is combed
Technical field
The invention belongs to pressure test technical field, it is related to three-dimensional flow field device for pressure measurement, and in particular to a kind of hemisphere First five pore pressures force probe comb, it is adaptable to measure subsonic compressor import, outlet three-dimensional flow field and flow the angle of pitch, deflection angle, total Pressure, static pressure and Mach number along blade height direction distribution.
Compared with the pressure probe of existing measurement three-dimensional flow field, it is not required to, by probe displacement mechanism, change point position, The angle of pitch, deflection angle, stagnation pressure, static pressure and Mach number can be flowed in the import of instantaneous completion subsonic compressor, outlet three-dimensional flow field Along the measurement of leaf directional spreding high, and reduce experimentation cost.
Background technology
Subsonic compressor experiment needs measurement testpieces import, outlet three-dimensional flow field parameter, including to flow the angle of pitch, partially Corner, stagnation pressure, static pressure and Mach number etc. typically use four holes or five pore pressure force probes at present along the distribution in blade height direction, Drive probe to different leaf high positions by probe displacement mechanism, measure respectively, due to being that spot measurement is visited, it is necessary to move Pin, could complete multimetering, and experiment time of measuring is more long, and experimental cost is higher.
And in the experiment of some subsonic compressors, because effective test period is short, only short a few minutes, in addition it is several Second, testpieces import, outlet three-dimensional flow field parameter cannot be completed along leaf in several seconds using existing pressure probe The measurement of directional spreding high.
The content of the invention
The technical problem to be solved in the present invention is:Subsonics cannot be completed for existing pressure probe in several seconds The problem that fast compressor inlet, outlet three-dimensional flow field parameter are measured along leaf directional spreding high, invents a kind of pore pressure force of hemispherical head five Probe is combed, and compared with existing pressure probe, can measure multiple locus simultaneously to flow parameter, can farthest shorten survey The amount time, complete subsonic compressor import, export three-dimensional flow field to flow the angle of pitch, deflection angle, stagnation pressure, static pressure and Mach number edge The measurement of leaf directional spreding high, reduces experimentation cost.
Technical solution of the invention is:
1st, the pore pressure force probe of a kind of hemispherical head five comb, it is characterised in that:Comprising probe (1), pole (2), pressure guiding pipe (3), The probe (1) is the cylinder that head is hemisphere, and quantity determines according to measurement request, at least 3, will according to measurement position Ask, be separately fixed at pole (2) difference and open up in measurement position, 1 pressure experience is provided with the hemisphere summit of probe (1) Hole, is mesopore (4), probe (1) hemisphere sphere on be circumferentially uniformly provided with 4 pressure experience holes, respectively go up hole (5), Left hole (6), right hole (7), lower opening (8), mesopore (4), upper hole (5), lower opening (8) center line in one plane, left hole (6), Right hole (7) along the plane symmetry be distributed, mesopore (4), left hole (6), right hole (7) center line in one plane, upper hole (5), Lower opening (8) is distributed along the plane symmetry, and each pressure experience hole is only with one end that a pressure guiding pipe (3) is encapsulated in probe (1) From connection, passage is provided with inside pole (2), the other end of each pressure guiding pipe (3) is drawn through the passage in pole (2) by probe tails Go out.
2nd, further, the hemispherical diameter of probe (1) is 1 millimeter to 6 millimeters.
3rd, further, mesopore (4), upper hole (5), left hole (6), right hole (7), a diameter of 0.2 millimeter to 1 millimeter of lower opening (8).
4th, further, mesopore (4) and the distance of probe comb pole (2) leading edge are 2 millimeters to 20 millimeters.
5th, further, a diameter of 0.2 millimeter to 1 millimeter of pressure guiding pipe (3).
6th, further, pole (2) can be cylinder, and external diameter is 4 millimeters to 20 millimeters.
7th, further, the cuboid of rounding before and after pole (2) can be, circle external diameter is 2 millimeters to 10 millimeters.
The beneficial effects of the invention are as follows:
The present invention is demarcated by calibration wind tunnel, the stagnation pressure that can multiple locus be measured simultaneously to flow, static pressure, the angle of pitch, Deflection angle and Mach number, it is adaptable to measure subsonic compressor import, export three-dimensional flow field to flow parameter along blade height direction Distribution.Compared with the pressure probe of existing measurement three-dimensional flow field, can multiple locus be measured simultaneously to flow parameter, can be most Big degree ground shortens time of measuring, completes subsonic compressor import, exports survey of the three-dimensional flow field parameter along leaf directional spreding high Amount, reduces experimentation cost.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the pore pressure force probe of hemispherical head five comb in embodiments of the invention one.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the A of Fig. 2 to sectional view.
Fig. 4 is in Fig. 2 I partial enlarged drawing.
Fig. 5 is a kind of structural representation of the pore pressure force probe of hemispherical head five comb in embodiments of the invention two.
Fig. 6 is the right view of Fig. 5.
Fig. 7 is the A of Fig. 6 to sectional view.
Fig. 8 is in Fig. 6 II partial enlarged drawing.
Wherein:1- pops one's head in, 2- poles, 3- pressure guiding pipes, 4- mesopores, the upper holes of 5-, 6- left hole, 7- right hole, 8- lower opening.
Specific embodiment
The present invention will be described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one
As shown in figure 1, a kind of pore pressure force probe of hemispherical head five comb is described in the present embodiment, comprising probe (1), pole (2), pressure guiding pipe (3), probe (1) is the cylinder that head is hemisphere, and quantity is defined as 5 according to measurement request, according to measurement Status requirement, is separately fixed at pole (2) difference and opens up in measurement position, and 1 pressure is provided with the hemisphere summit of probe (1) Experience hole, be mesopore (4), 4 pressure experience holes are circumferentially uniformly provided with the hemisphere sphere of probe (1), respectively go up hole (5), left hole (6), right hole (7), lower opening (8), mesopore (4), upper hole (5), lower opening (8) center line in one plane, left hole (6), right hole (7) along the plane symmetry be distributed, mesopore (4), left hole (6), right hole (7) center line in one plane, upper hole (5), lower opening (8) is distributed along the plane symmetry, and each pressure experience hole is encapsulated in probe (1) with a pressure guiding pipe (3) End connects alone, is provided with passage inside pole (2), the other end of each pressure guiding pipe (3) through the passage in pole (2), by probe tail Draw in portion.
The hemispherical diameter of probe (1) is 2 millimeters.
Mesopore (4), upper hole (5), left hole (6), right hole (7), a diameter of 0.5 millimeter of lower opening (8).
Mesopore (4) is 10 millimeters with the distance of probe comb pole (2) leading edge.
A diameter of 0.5 millimeter of pressure guiding pipe (3).
Pole (2) is cylinder, and external diameter is 7 millimeters.
The present invention is demarcated by calibration wind tunnel, the stagnation pressure that can multiple locus be measured simultaneously to flow, static pressure, the angle of pitch, Deflection angle and Mach number, it is adaptable to measure subsonic compressor import, export low speed three-dimensional flow field to flow parameter along blade height The distribution in direction.
Embodiment two
As shown in figure 5, a kind of pore pressure force probe of hemispherical head five comb is described in the present embodiment, comprising probe (1), pole (2), pressure guiding pipe (3), probe (1) is the cylinder that head is hemisphere, and quantity is defined as 5 according to measurement request, according to measurement Status requirement, is separately fixed at pole (2) difference and opens up in measurement position, and 1 pressure is provided with the hemisphere summit of probe (1) Experience hole, be mesopore (4), 4 pressure experience holes are circumferentially uniformly provided with the hemisphere sphere of probe (1), respectively go up hole (5), left hole (6), right hole (7), lower opening (8), mesopore (4), upper hole (5), lower opening (8) center line in one plane, left hole (6), right hole (7) along the plane symmetry be distributed, mesopore (4), left hole (6), right hole (7) center line in one plane, upper hole (5), lower opening (8) is distributed along the plane symmetry, and each pressure experience hole is encapsulated in probe (1) with a pressure guiding pipe (3) End connects alone, is provided with passage inside pole (2), the other end of each pressure guiding pipe (3) through the passage in pole (2), by probe tail Draw in portion.
The hemispherical diameter of probe (1) is 2 millimeters.
Mesopore (4), upper hole (5), left hole (6), right hole (7), a diameter of 0.4 millimeter of lower opening (8).
Mesopore (4) is 10 millimeters with the distance of probe comb pole (2) leading edge.
A diameter of 0.4 millimeter of pressure guiding pipe (3).
Pole (2) is the cuboid of front and rear rounding, and circle external diameter is 6 millimeters, and two centers of circle distance is 7 millimeters..
The present invention is demarcated by calibration wind tunnel, the stagnation pressure that can multiple locus be measured simultaneously to flow, static pressure, the angle of pitch, Deflection angle and Mach number, it is adaptable to measure subsonic compressor import, export high speed three-dimensional flow field to flow parameter along blade height The distribution in direction.

Claims (7)

1. a kind of pore pressure force probe of hemispherical head five is combed, it is characterised in that:It is described comprising probe (1), pole (2), pressure guiding pipe (3) Probe (1) is the cylinder that head is hemisphere, and quantity determines according to measurement request, at least 3, is required according to measurement position, It is separately fixed at pole (2) difference to open up in measurement position, 1 pressure experience hole is provided with the hemisphere summit of probe (1), is Mesopore (4), 4 pressure experience holes are circumferentially uniformly provided with the hemisphere sphere of probe (1), respectively go up hole (5), left hole (6), right hole (7), lower opening (8), mesopore (4), upper hole (5), lower opening (8) center line in one plane, left hole (6), right hole (7) along the plane symmetry be distributed, mesopore (4), left hole (6), right hole (7) center line in one plane, upper hole (5), lower opening (8) it is distributed along the plane symmetry, one end that each pressure experience hole is encapsulated in probe (1) with a pressure guiding pipe (3) connects alone It is logical, passage is provided with inside pole (2), the other end of each pressure guiding pipe (3) is drawn through the passage in pole (2) by probe tails.
2. a kind of pore pressure force probe of hemispherical head according to claim 1 five is combed, it is characterised in that:The hemisphere of probe (1) is straight Footpath is 1 millimeter to 6 millimeters.
3. a kind of pore pressure force probe of hemispherical head according to claim 1 five is combed, it is characterised in that:Mesopore (4), upper hole (5), Left hole (6), right hole (7), a diameter of 0.2 millimeter to 1 millimeter of lower opening (8).
4. a kind of pore pressure force probe of hemispherical head according to claim 1 five is combed, it is characterised in that:Mesopore (4) is combed with probe The distance of pole (2) leading edge is 2 millimeters to 20 millimeters.
5. a kind of pore pressure force probe of hemispherical head according to claim 1 five is combed, it is characterised in that:Pressure guiding pipe (3) is a diameter of 0.2 millimeter to 1 millimeter.
6. a kind of pore pressure force probe of hemispherical head according to claim 1 five is combed, it is characterised in that:Pole (2) can be circle Cylinder, external diameter is 4 millimeters to 20 millimeters.
7. a kind of pore pressure force probe of hemispherical head according to claim 1 five is combed, it is characterised in that:Pole (2) can be preceding The cuboid of rounding, justifies external diameter for 2 millimeters to 10 millimeters afterwards.
CN201710126719.3A 2017-03-06 2017-03-06 A kind of pore pressure force probe of hemispherical head five is combed Pending CN106908185A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110044549A (en) * 2019-04-10 2019-07-23 常州大学 A kind of experimental provision leaked for studying underwater gas

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Publication number Priority date Publication date Assignee Title
WO2011148094A1 (en) * 2010-05-25 2011-12-01 Turbomeca Device for multipoint acquisition/distribution of fluid, in particular probe for tapping pressure in a turbomachine air inlet
CN203940946U (en) * 2014-07-04 2014-11-12 北京航空航天大学 A kind of five-hole probe for full flow directional detection
CN105716779A (en) * 2015-11-02 2016-06-29 北京航空航天大学 Dynamic pressure blade type probe
CN105716788A (en) * 2015-11-02 2016-06-29 北京航空航天大学 Three-hole transonic speed pressure probe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011148094A1 (en) * 2010-05-25 2011-12-01 Turbomeca Device for multipoint acquisition/distribution of fluid, in particular probe for tapping pressure in a turbomachine air inlet
CN203940946U (en) * 2014-07-04 2014-11-12 北京航空航天大学 A kind of five-hole probe for full flow directional detection
CN105716779A (en) * 2015-11-02 2016-06-29 北京航空航天大学 Dynamic pressure blade type probe
CN105716788A (en) * 2015-11-02 2016-06-29 北京航空航天大学 Three-hole transonic speed pressure probe

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110044549A (en) * 2019-04-10 2019-07-23 常州大学 A kind of experimental provision leaked for studying underwater gas

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