CN103728115B - A kind of combined type PIV trace particle applicator for the experiment of wind table - Google Patents
A kind of combined type PIV trace particle applicator for the experiment of wind table Download PDFInfo
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- CN103728115B CN103728115B CN201410014359.4A CN201410014359A CN103728115B CN 103728115 B CN103728115 B CN 103728115B CN 201410014359 A CN201410014359 A CN 201410014359A CN 103728115 B CN103728115 B CN 103728115B
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Abstract
The present invention relates to a kind of combined type PIV trace particle applicator for the experiment of wind table, it is characterized in that: it comprises a dispenser, a cylindrical tank, seals circular channel, a scalability flexible pipe and a rigidity and props up rod; Dispenser arranges cylindrical tank, and the end sealing of cylindrical tank connects the inner sealing circular channel being provided with blower fan, and the end sealing of sealing circular channel connects the bottom of scalability flexible pipe, and the top of scalability flexible pipe connects one end that rigidity props up rod; Erecting frame be from top to bottom set gradually spike smoke path layer, packaged type burning podium level, laying bracket backplane level and some supports composition framework; Spike smoke path layer has some cloth cigarette holes be connected with cylindrical tank, packaged type burning podium level has hole of burning incense one to one with the cloth cigarette hole on spike smoke path layer, and laying bracket backplane level is two movable plates.Structure of the present invention is simple, cost is low, be convenient to dismounting and easy and simple to handle.The present invention can be widely used in the air spike field in PIV test macro.
Description
Technical field
The present invention relates to a kind of trace particle applicator, particularly about a kind of combined type PIV(ParticleImageVelocimetry for the experiment of wind table, particle image velocimetry method) trace particle applicator.
Background technology
" experiment of wind table " this concept is proposed by Denmark's Bygholm animal science research centre, the earliest for the wind field experiment of simulation test slaughterhouse building, only comes into operation in Denmark at present.Wind table experiment table is a low speed, the small-sized wind tunnel of open cycle, one that is made up of axial flow blower, frequency converter, wind table plane and the wall perpendicular to the plane open type wind table experiment table with steady flow condition.In the steady air current region of wind table, lay BUILDINGS MODELS just can carry out the simulated experiment of wind table.Wind table experiment table build easy, take up an area little, utilize wind table experiment table can very convenient, natural wind simulating is on the impact of constructure ventilation economically, carry out the air current composition experiment of various air inlet, exhaust outlet, thus obtain relatively actual experimental result.The data of gained and conclusion all extremely meet the situation in true flow field in an experiment, therefore effectively demonstrate feasibility and the reliability of the experiment of wind table.Wind field for BUILDINGS MODELS is tested, and the experiment of wind table instead of wind tunnel experiment with the advantage of its low cost, but the experiment of wind table still has much room for improvement in the degree of accuracy of measuring technology and test data.
Along with the development of computing machine and image processing techniques, PIV is used widely.PIV tests the speed and indirectly can measure the instantaneous velocity distribution in flow field by measuring the displacement of trace particle in known very short time interval.The key of PIV velocimetry is trace particle.In current existing PIV test, there is the liquid trace particle being applied to oil field dynamic research monitoring and adopting, there is the trace particle of the employing high molecule nano material for clinical medicine, also the starch of employing film coating technique, pollen particles is had as the trace particle of wind tunnel experiment, the PIV proving installation adopted for mechanical privileged sites in addition, but, the research report that trace particle and applicator thereof for wind table experiment PIV test are not also correlated with.The trace particle adopted in existing PIV measuring technology operates technical difficulty greatly, and the complex structure of applicator, cost is high.Therefore, be necessary to design a kind of trace particle applicator easy and simple to handle used for wind table experiment PIV test.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of structure simple, be convenient to dismounting, the cost combined type PIV trace particle applicator for the experiment of wind table low and simple to operate, and can trace particle be discharged in the region needing to carry out PIV test easily, to carry out the PIV test of local or microenvironment.
For achieving the above object, the present invention takes following technical scheme: a kind of combined type PIV trace particle applicator for the experiment of wind table, is characterized in that: it comprises a dispenser, a cylindrical tank, seals circular channel, a scalability flexible pipe and a rigidity and props up rod; Described dispenser arranges described cylindrical tank, the end sealing of described cylindrical tank connects the inner described sealing circular channel being provided with blower fan, the end sealing of described sealing circular channel connects the bottom of described scalability flexible pipe, and the top of described scalability flexible pipe connects one end that described rigidity props up rod; Described erecting frame be from top to bottom set gradually spike smoke path layer, packaged type burning podium level, laying bracket backplane level and some supports composition framework; Described spike smoke path layer has the cloth cigarette hole that some and described cylindrical tank is connected, described packaged type burning podium level has hole of burning incense one to one with the described cloth cigarette hole on described spike smoke path layer, described laying bracket backplane level is two movable plates.
Described scalability flexible pipe connects described rigidity by web member and props up rod.
Described blower fan is axial flow blower.
The diameter of described cylindrical tank is 160mm, is highly 500mm, and the diameter of described sealing circular channel is 74mm, is highly 100mm; Described cylindrical tank and the circular channel wall thickness of described sealing are 3mm, and material is thin-wall metal.
Described dispenser is of a size of long 320mm, wide 160mm, high 260mm; The vertical range that described spike smoke path layer and described packaged type burn between podium level is 200mm, and the vertical range between described packaged type burning podium level and described laying bracket backplane level is 50mm.
Described spike smoke path layer has two to be set up in parallel and the circular smoke arranging board waiting circle, described cloth cigarette hole is evenly distributed on described smoke arranging board, and described smoke arranging board diameter is 160mm, the described cloth cigarette number of perforations on smoke arranging board described in each is 21, and diameter is 20mm.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the cylindrical tank of the present invention owing to adopting dispenser top to arrange sealing connection, tank body is tightly connected sealing circular channel, seal circular channel seal and connect scalability flexible pipe, scalability flexible pipe connects rigidity and props up rod, one-piece construction is comparatively simple, and assembles convenient, easy accessibility between each parts.Erecting frame is divided into both sides, all can be used for burning as the wormwood incense of trace particle, not only can to have adopted in Mobile mounting rack packaged type burning podium level but also can by equipment moving to opposite side before the wormwood incense after-flame of side, to realize uninterruptedly providing trace particle.Dispenser, cylindrical tank and sealing circular channel all adopt metal, with low cost.2, the present invention adopts scalability flexible pipe, and therefore can be elongated by scalability flexible pipe, to shorten or bending by the actual needs experimentally in process, operation is very flexible, conveniently discharges trace particle in region to be measured.3, the present invention is using the smog of wormwood incense burning generation as trace particle, and the smog particle diameter that wormwood incense burning produces, between several microns to tens microns, meets the scope of PIV trace particle particle diameter.Can obtain cheap wormwood incense easily on the market, therefore the trace particle cost of the present invention's employing is also lower.The present invention can be widely used in the air spike field in PIV test macro.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is dispenser vertical view of the present invention
Fig. 3 is dispenser front elevation of the present invention
Fig. 4 adopts the present invention to test the PIV trace particle imaging schematic diagram obtained
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes dispenser 1, cylindrical tank 2, sealing circular channel 3, scalability flexible pipe 4 and rigidity prop up rod 5.
Dispenser 1 is arranged cylindrical tank 2, the end sealing of cylindrical tank 2 connects the inner sealing circular channel 3 being provided with blower fan 6, the end sealing of sealing circular channel 3 connects the bottom of scalability flexible pipe 4, and the top of scalability flexible pipe 4 connects by web member 7 one end that rigidity props up rod 5.Wherein, sealing circular channel 3 is outside equipped with the direct supply 8 operated for controlling blower fan 6, and this is conventional setting, therefore no longer describes in detail.
As shown in Figure 2,3, erecting frame 1 be from top to bottom set gradually spike smoke path layer 11, packaged type burning podium level 12, laying bracket backplane level 13 and some supports composition rectangular parallelepiped framework.Spike smoke path layer 11 has two to be set up in parallel and the circular smoke arranging board 111 waiting circle, each smoke arranging board 111 is uniformly distributed some cloth cigarette holes 112.Packaged type burning podium level 12 is two movable plates, and packaged type burning podium level 12 is uniformly distributed some holes of burning incense, and cloth cigarette hole 112 one_to_one corresponding on hole and spike smoke path layer 11 of burning incense.Laying bracket backplane level 13 is two movable plates.
In above-described embodiment, dispenser 1 is of a size of long 320mm, wide 160mm, high 260mm.The vertical range that spike smoke path layer 11 and packaged type burn between podium level 12 is 200mm, and the vertical range between packaged type burning podium level 12 and laying bracket backplane level 13 is 50mm.Smoke arranging board 111 diameter is 160mm, and on smoke arranging board 111, the number in cloth cigarette hole 112 is 21, and cloth cigarette hole 112 diameter is 20mm.
In above-described embodiment, blower fan 6 is axial flow blower.
In above-described embodiment, cylindrical tank 2 diameter is 160mm, is highly 500mm, and sealing circular channel 3 diameter is 74mm, is highly 100mm.Cylindrical tank 2 and sealing circular channel 3 wall thickness are 3mm, and material is thin-wall metal.
When the present invention works:
1) what the some wormwood incenses lighted are inserted into packaged type burning podium level 12 side burns incense in hole, the burning quantity of wormwood incense experimentally in need the concentration of smog to determine (smog that the present invention adopts wormwood incense to burn to produce is as trace particle);
2) be placed on by cylindrical tank 2 on the spike smoke path layer 11 of the side being provided with wormwood incense burning, the trace particle that wormwood incense burning is produced all is entered in cylindrical tank 2;
3) open the direct supply 8 sealing circular channel 3 controlling blower fan 6 running, utilize the pressure of blower fan 6 to make trace particle evenly be transported in cylindrical tank 2 and scalability flexible pipe 4 by spike smoke path layer 11;
4) according to the needs of PIV experiment test zone, the hand-held rigidity of experimenter props up the position that rod 5 regulates scalability flexible pipe 4, make scalability flexible pipe 4 top exit position alignment PIV experiment region to be tested, discharge the trace particle in it, fix rigidity afterwards and prop up rod 5, can according to actual needs scalability flexible pipe 4 be elongated in experimentation, shorten or bend;
5) when the wormwood incense of packaged type burning podium level 12 side is by after-flame, what the some wormwood incenses lighted are inserted into packaged type burning podium level 12 opposite side burns incense in hole, replace the side by after-flame, repeat step 1) ~ 4 afterwards), uninterruptedly trace particle is discharged to realize the present invention, the ashes of wormwood incense burning drop on laying bracket backplane level 13, concentrate cleaning afterwards.
In above-described embodiment, in step 5), sealing cylinder shape tank body 2, sealing circular channel 3 and the scalability flexible pipe 4 be tightly connected can also be moved to packaged type burning podium level 12 opposite side in the lump, repeat step 4), uninterruptedly discharge trace particle to realize the present invention.
As shown in Figure 4, in employing, the present invention tests in the PIV trace particle imaging schematic diagram obtained, white portion represents the turbulent air flow organizational form of the air that trace particle that the present invention discharges embodies, the followability of trace particle and air is better as can be seen from Figure, and the organizational form of white turbulent air flow can record the velocity distribution in flow field.
The various embodiments described above are only for illustration of the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. for a combined type particle image velocimetry method trace particle applicator for wind table experiment, it is characterized in that: it comprises a dispenser, a cylindrical tank, seals circular channel, a scalability flexible pipe and a rigidity and props up rod;
Described dispenser arranges described cylindrical tank, the end sealing of described cylindrical tank connects the inner described sealing circular channel being provided with blower fan, the end sealing of described sealing circular channel connects the bottom of described scalability flexible pipe, and the top of described scalability flexible pipe connects one end that described rigidity props up rod;
Described dispenser be from top to bottom set gradually spike smoke path layer, packaged type burning podium level, laying bracket backplane level and some supports composition framework; Described spike smoke path layer has the cloth cigarette hole that some and described cylindrical tank is connected, described packaged type burning podium level has hole of burning incense one to one with the described cloth cigarette hole on described spike smoke path layer, described laying bracket backplane level is two movable plates.
2. as claimed in claim 1 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: described scalability flexible pipe connects described rigidity by web member and props up rod.
3. as claimed in claim 1 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: described blower fan is axial flow blower.
4. as claimed in claim 2 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: described blower fan is axial flow blower.
5. as claimed in claim 1 or 2 or 3 or 4 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: the diameter of described cylindrical tank is 160mm, be highly 500mm, the diameter of described sealing circular channel is 74mm, is highly 100mm; Described cylindrical tank and the circular channel wall thickness of described sealing are 3mm, and material is thin-wall metal.
6. as claimed in claim 1 or 2 or 3 or 4 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: described dispenser is of a size of long 320mm, wide 160mm, high 260mm; The vertical range that described spike smoke path layer and described packaged type burn between podium level is 200mm, and the vertical range between described packaged type burning podium level and described laying bracket backplane level is 50mm.
7. as claimed in claim 5 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: described dispenser is of a size of long 320mm, wide 160mm, high 260mm; The vertical range that described spike smoke path layer and described packaged type burn between podium level is 200mm, and the vertical range between described packaged type burning podium level and described laying bracket backplane level is 50mm.
8. a kind of combined type particle image velocimetry method trace particle applicator for the experiment of wind table as described in claim 1 or 2 or 3 or 4 or 7, it is characterized in that: described spike smoke path layer has two and be set up in parallel and the circular smoke arranging board waiting circle, described cloth cigarette hole is evenly distributed on described smoke arranging board, and described smoke arranging board diameter is 160mm, described cloth cigarette number of perforations on smoke arranging board described in each is 21, and diameter is 20mm.
9. as claimed in claim 5 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: described spike smoke path layer has two and be set up in parallel and the circular smoke arranging board waiting circle, described cloth cigarette hole is evenly distributed on described smoke arranging board, and described smoke arranging board diameter is 160mm, described cloth cigarette number of perforations on smoke arranging board described in each is 21, and diameter is 20mm.
10. as claimed in claim 6 a kind of for wind table experiment combined type particle image velocimetry method trace particle applicator, it is characterized in that: described spike smoke path layer has two and be set up in parallel and the circular smoke arranging board waiting circle, described cloth cigarette hole is evenly distributed on described smoke arranging board, and described smoke arranging board diameter is 160mm, described cloth cigarette number of perforations on smoke arranging board described in each is 21, and diameter is 20mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014359.4A CN103728115B (en) | 2014-01-13 | 2014-01-13 | A kind of combined type PIV trace particle applicator for the experiment of wind table |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410014359.4A CN103728115B (en) | 2014-01-13 | 2014-01-13 | A kind of combined type PIV trace particle applicator for the experiment of wind table |
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| CN103728115A CN103728115A (en) | 2014-04-16 |
| CN103728115B true CN103728115B (en) | 2015-12-30 |
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| CN109186929B (en) * | 2018-07-26 | 2020-06-26 | 江苏大学 | Assembly quality detection device and method for air screen cleaning system based on streamline spectrum |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653683U (en) * | 2010-05-06 | 2010-11-24 | 西北工业大学 | Suddenly expanding pipe system with circulatory particles |
| CN101975871A (en) * | 2010-09-27 | 2011-02-16 | 北京航空航天大学 | Fuming-type trace particle generator |
| CN202938981U (en) * | 2012-12-07 | 2013-05-15 | 大连海事大学 | Hydrogen combustion gas turbine combustion chamber flow field characteristic experimental device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2852020B2 (en) * | 1996-03-22 | 1999-01-27 | 株式会社コミュータヘリコプタ先進技術研究所 | Sheet-shaped particle generator |
| JP5502708B2 (en) * | 2010-11-24 | 2014-05-28 | 本田技研工業株式会社 | Seeding device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653683U (en) * | 2010-05-06 | 2010-11-24 | 西北工业大学 | Suddenly expanding pipe system with circulatory particles |
| CN101975871A (en) * | 2010-09-27 | 2011-02-16 | 北京航空航天大学 | Fuming-type trace particle generator |
| CN202938981U (en) * | 2012-12-07 | 2013-05-15 | 大连海事大学 | Hydrogen combustion gas turbine combustion chamber flow field characteristic experimental device |
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Granted publication date: 20151230 Termination date: 20180113 |