CN205608020U - A laser -bounce device for circulating water channel laser particle image velocimetry system - Google Patents
A laser -bounce device for circulating water channel laser particle image velocimetry system Download PDFInfo
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- CN205608020U CN205608020U CN201620428335.8U CN201620428335U CN205608020U CN 205608020 U CN205608020 U CN 205608020U CN 201620428335 U CN201620428335 U CN 201620428335U CN 205608020 U CN205608020 U CN 205608020U
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- laser
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- monitoring section
- circulating water
- flow field
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Abstract
The utility model provides a laser -bounce device for circulating water channel laser particle image velocimetry system, include: the end portion allies oneself with circulating water channel headed by, returns the venturi tube column structure, and including drive fluid movement's power section, the diameter is the expansion section of chap gradually, curved rectification section to and the unanimous monitoring section of diameter, the speculum is installed aslope the fluid discharge one end of monitoring section, the laser instrument sets up one side of monitoring section, and the laser that sends warp after the speculum reflection horizontally to the fluid of monitoring section gets into the directional divergence. The utility model discloses install the speculum in circulating water channel, can with laser by flow field low reaches reflections to the upper reaches, the object below flow field information of streaming can be caught simultaneously in the supplementary seizure that realizes large tracts of land wake flow field. The flow field low reaches are arranged in at a distance to the speculum, and are very little to the interference of monitoring the section flow field to can not influence the interior flow field of circulating water channel quality and experiment precision.
Description
Technical field
This utility model relates to hydrodynamics and aerodynamic scope, particularly relates to a kind of by circulation
Fluid in tank repeatedly images to record what the Particle Image Velocimetry of particle rapidity in flow field was used
Laser-bounce device.
Background technology
Particle Image Velocimetry (PIV) as a kind of brand-new unperturbed, transient state, whole audience speed measurement method,
Having high academic significance and practical value at hydrodynamics and aerodynamic studies field, it is a kind of
Utilize and repeatedly image to record the position of particle in flow field, and analyze the image taken the photograph, thus measure flowing speed
The method of degree.
Imaging system therein is typically made up of double-pulse laser sheet laser, lens and photographing unit.For irradiating
The sheet laser of dynamic particle field is passed through lens forming by pulse laser.Prior art uses in circulating water chennel
During PIV system, it is that laser is projected above the scope of freedom of tank, but this method defies capture
Streaming the information of flow below object, and the impact of Stimulated Light device crevice projection angle, visual field is less, the suitability
Poor.
Utility model content
The purpose of this utility model is to provide for a kind of by repeatedly imaging the fluid in circulating water chennel with note
The laser-bounce device that in record flow field, the Particle Image Velocimetry of particle rapidity is used.
Especially, this utility model provides a kind of swashing for circulating water chennel laser particle image speed measurement system
Light reflecting device, including:
Circulating water chennel, the back-shaped tubular structure being connected for head and the tail, including the dynamic power section of Fluid Motion Driven By Moving,
The expansion segment that diameter is the most thicker, the rectification section of arc, and the monitoring section that diameter is consistent；
Reflecting mirror, the fluid being mounted obliquely within described monitoring section discharges one end；
Laser instrument, is arranged on the side of described monitoring section, and the laser sent water after described reflecting mirror reflects
Level land dissipates to the fluid approach axis of described monitoring section.
Further, the width of described reflecting mirror is less than or equal to described monitoring section flow field is caused negligible shadow
The Breadth Maximum rung.
Further, the sidewall of described monitoring section is smooth and transparent optical glass.
Further, described rectification section is connected with described monitoring section by the outlet shunk.
Further, the propeller promoting fluid motion is installed in described power section, and drives described spiral
The motor of slurry work.
Further, described reflecting mirror is arranged on described prison by being fixed on the support of described circulating water chennel both sides
Survey in section.
Reflecting mirror is arranged in circulating water chennel by this utility model, by downstream, flow field, laser can be reflexed to upstream,
Auxiliary realizes the seizure of large area tail flow field, can capture simultaneously and stream information of flow below object.Reflecting mirror
Being placed in flow field farther downstream and width is sufficiently small, the interference to monitoring section flow field is the least, and does not interferes with
To circulating water chennel flow field quality and experimental precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of the laser-bounce device according to one embodiment of this utility model.
Detailed description of the invention
As it is shown in figure 1, one embodiment of this utility model for circulating water chennel laser particle image speed measurement system
The laser-bounce device 100 of system includes in general manner: the circulating water chennel 10 circulated as Experimental Flowing Object,
With the reflecting mirror 20 for reflecting laser being arranged in circulating water chennel 10, and the laser as sheet laser
30。
This circulating water chennel 10 is the back-shaped tubular structure that head and the tail are connected, according to the place of circulating water chennel 10 convection cell
Reason mode is different, and circulating water chennel 10 is in turn divided into the power section 11 of Fluid Motion Driven By Moving, and diameter is gradually
Thicker expansion segment 12, the rectification section 13 of arc, and the monitoring section 14 that diameter is consistent, can between each section
To be connected by the excessive pipe of arc.
The fluid that this reflecting mirror 20 is mounted obliquely within monitoring section 14 discharges one end, to reduce reflecting mirror as far as possible
The impact of 20 fluid motion speed, the incline direction of reflecting mirror 20 and angle of inclination, with final needs
Beam direction determines.
After this laser instrument 30 is arranged on the side of monitoring section 14, and the laser sent is reflected mirror 20 reflection
Flatly dissipate to the fluid approach axis of monitoring section 14.
Reflecting mirror 20 is arranged in circulating water chennel 10 by the present embodiment, can be reflexed to by downstream, flow field by laser
Upstream, auxiliary realizes the seizure of large area tail flow field, can capture simultaneously and stream flow field letter below object 40
Breath.Reflecting mirror 20 is placed in flow field farther downstream, and the interference to monitoring section 14 flow field is the least, and will not
Have influence on circulating water chennel 10 flow field quality and experimental precision.This embodiment can make particle velocity-measuring system exist
Use in circulating water chennel is more convenient, makes the measurement of tail flow field on a large scale become a reality.
Further, for the reflection light that offer is enough, the width of this reflecting mirror 20 can be less than or equal to right
The Breadth Maximum of negligible impact is caused in monitoring section flow field.The Breadth Maximum of negligible impact here refers to instead
Penetrate mirror to be placed in the monitoring section of flowing, the mobile performance of fluid can't be affected.In the present embodiment, should
The width of reflecting mirror is 1 centimetre, and the substantially flowing of convection cell does not affect.Reflecting mirror 20 is in length
Monitoring section 14 should be able to be put into completely, and be inclined to specified angle.Further, for making reflecting mirror 20
Can adjust state after angle of inclination and fixing current adjustment, this reflecting mirror 20 can be by being fixed on circulation
The support of tank 10 both sides is arranged in monitoring section 14.Can stationary mirror 20 clampingly by support
One end, thus carry out the adjustment of reflection angle with the other end for fulcrum.Concrete support can be arranged on prison
Survey the top of section 14 and can move up along monitoring section 14 axle, thus with the top margin of reflecting mirror 20 as movement
Limit, adjusts the angle of inclination bottom the relative monitoring section 14 of reflecting mirror 20.For improving reflecting effect and reducing sharp
Light loss, the sidewall of this monitoring section 14 can be smooth and transparent optical glass.In the present embodiment,
Laser instrument 30 is arranged on the lower section of monitoring section 14, and its laser vertical is directed upwardly toward in monitoring section 14, and quilt
Reflecting to the import direction of monitoring section 14 of 45 degree of reflecting mirror 20 levels tilted.
Further, in an embodiment of the present utility model, for making the fluid can in monitoring section 14
Obtaining uniform flow velocity, this rectification section 13 can be connected with monitoring section 14 by the outlet 131 shunk.Whole
Three times of its outlet 131 a diameter of of stream section 13, the diameter of monitoring section 14 is then more than this outlet 131
Diameter and less than the diameter of rectification section 13.Fluid out after outlet 131 compression, enters back into expansion
Monitoring section 14, make the fluid of entrance monitoring section 14 possess certain fltting speed.Additionally, in power section
The propeller 111 promoting fluid to move along circulating water chennel 10 can also be installed in 11, and drive propeller
The motor 112 of 111 work.
So far, although those skilled in the art will appreciate that the most detailed to illustrate and describe this practicality new
Multiple exemplary embodiments of type, but, in the case of without departing from this utility model spirit and scope, still
Can directly determine according to this utility model disclosure or derive the many meeting this utility model principle
Other variations or modifications.Therefore, scope of the present utility model is it is understood that and regard as covering all these
Other variations or modifications.
Claims (6)
1. the laser-bounce device for circulating water chennel laser particle image speed measurement system, it is characterised in that
Including:
Circulating water chennel, the back-shaped tubular structure being connected for head and the tail, including the power section of Fluid Motion Driven By Moving, directly
The expansion segment that footpath is the most thicker, the rectification section of arc, and the monitoring section that diameter is consistent；
Reflecting mirror, the fluid being mounted obliquely within described monitoring section discharges one end；
Laser instrument, is arranged on the side of described monitoring section, and the laser sent water after described reflecting mirror reflects
Level land dissipates to the fluid approach axis of described monitoring section.
Laser-bounce device the most according to claim 1, it is characterised in that
The width of described reflecting mirror is less than or equal to the maximum that described monitoring section flow field is caused negligible impact
Width.
Laser-bounce device the most according to claim 1, it is characterised in that
The sidewall of described monitoring section is smooth and transparent optical glass.
Laser-bounce device the most according to claim 1, it is characterised in that
Described rectification section is connected with described monitoring section by the outlet shunk.
Laser-bounce device the most according to claim 1, it is characterised in that
The propeller promoting fluid motion is installed in described power section, and drives the electricity that described propeller works
Machine.
Laser-bounce device the most according to claim 1, it is characterised in that
Described reflecting mirror is arranged in described monitoring section by being fixed on the support of described circulating water chennel both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428335.8U CN205608020U (en) | 2016-05-12 | 2016-05-12 | A laser -bounce device for circulating water channel laser particle image velocimetry system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428335.8U CN205608020U (en) | 2016-05-12 | 2016-05-12 | A laser -bounce device for circulating water channel laser particle image velocimetry system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205608020U true CN205608020U (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428335.8U Expired - Fee Related CN205608020U (en) | 2016-05-12 | 2016-05-12 | A laser -bounce device for circulating water channel laser particle image velocimetry system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205608020U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895951A (en) * | 2017-02-22 | 2017-06-27 | 中国科学技术大学 | Hypersonic interior rotatable air intake duct and distance piece flow field chromatograph display methods, system |
| CN113341174A (en) * | 2021-06-03 | 2021-09-03 | 中国人民解放军海军工程大学 | Transonic cascade wind tunnel piv test device test method and system |
| CN113358328A (en) * | 2021-06-16 | 2021-09-07 | 中国科学院力学研究所 | Realize controllable circulating water tank experimental apparatus of solution saturation |
-
2016
- 2016-05-12 CN CN201620428335.8U patent/CN205608020U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895951A (en) * | 2017-02-22 | 2017-06-27 | 中国科学技术大学 | Hypersonic interior rotatable air intake duct and distance piece flow field chromatograph display methods, system |
| CN106895951B (en) * | 2017-02-22 | 2020-01-03 | 中国科学技术大学 | Hypersonic speed inward rotation type air inlet and isolation section flow field chromatography display method and system |
| CN113341174A (en) * | 2021-06-03 | 2021-09-03 | 中国人民解放军海军工程大学 | Transonic cascade wind tunnel piv test device test method and system |
| CN113358328A (en) * | 2021-06-16 | 2021-09-07 | 中国科学院力学研究所 | Realize controllable circulating water tank experimental apparatus of solution saturation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20190512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |