CN107044907A - A kind of compacted shifting sand-taped instrument for wind tunnel experiment - Google Patents
A kind of compacted shifting sand-taped instrument for wind tunnel experiment Download PDFInfo
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- CN107044907A CN107044907A CN201710131078.0A CN201710131078A CN107044907A CN 107044907 A CN107044907 A CN 107044907A CN 201710131078 A CN201710131078 A CN 201710131078A CN 107044907 A CN107044907 A CN 107044907A
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- husky
- neck
- plate
- wind tunnel
- taped instrument
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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
- G01M9/02—Wind tunnels
- G01M9/04—Details
Abstract
The invention discloses a kind of compacted shifting sand-taped instrument for wind tunnel experiment, including swash plate, enter husky neck, organic glass baffle, collect husky container, training for sediment plate and enter husky neck cover plate, swash plate is connected into husky neck windward side, and connection end is concordant above husky neck with entering, and the other end is placed on wind-tunnel bottom plate；It is described enter husky neck in the middle of be provided with into husky passage, it is described enter husky neck cover plate cover it is described enter husky neck above, the husky container one side opening of collection, provided with chute, organic glass baffle can be moved in chute；The fine-structure mesh for being furnished with 300 500 mesh in gap, gap is provided with the middle of the husky container upper surface of collection；Training for sediment plate is provided with the husky container of collection.The present invention is used for the compacted shifting sand-taped instrument of wind tunnel experiment, and the compacted shifting sand-taped instrument can efficiently collect compacted shifting particle, reduce experimental error.
Description
Technical field
The invention belongs to wind tunnel technique field, it is related to a kind of compacted shifting sand-taped instrument for wind tunnel experiment.
Background technology
In wind erosion phenomenon, there are different forms of motion in the particle of different-grain diameter, based on field inspection and wind tunnel experiment
Research, wind-driven sediment form is classified as three major types by Bai Genuo, it is respectively compacted move, saltation and suspended.For compacted shifting movement, i.e. particle diameter
The grains of sand more than 1000 microns occur to slide or rolled in the presence of wind-force and other saltation particles on Shamian Island；For
In the presence of wind field in earth's surface jumping occurs for saltation, the i.e. grains of sand, is the principal mode of sand incipience, is recognized always
To be played an important role to soil surface wind erosion；For suspended motion, mainly dust granules are discharged under the effect such as turbulent flow
In air, then because its own gravity is less than or equal to wind-force and certain time can be kept to be suspended in air, wherein grain
Footpath, which is less than 20 microns of particle, can carry out prolonged suspended motion, and particle of the particle diameter between 20 microns and 70 microns
The suspended motion of short time can only be continued.
For three kinds of forms of wind-driven sediment, Bai Genuo has found that compacted shifting particle accounts for the 25% of total husky amount by wind tunnel experiment.
Result that Wu is just obtaining with Ling Yuquan field trial and Bai Genuo's is consistent.Sharp according to field trial observe with
The increase of coarse granule grains of sand ratio, compacted shifting movement just becomes more and more important, but be due to compacted shifting movement naked-eye observation error
Larger, high-speed photography is shot has the problems such as image procossing again, therefore relatively fewer to the research of compacted shifting.
The content of the invention
To solve above mentioned problem present in prior art and actual conditions, it is used for wind tunnel experiment the invention provides one kind
Compacted shifting sand-taped instrument, including swash plate, enter husky neck, organic glass baffle, collection husky container, training for sediment plate and enter husky neck cover plate, swash plate connects
It is connected on into husky neck windward side, connection end is concordant above husky neck with entering, and the other end is placed on wind-tunnel bottom plate；It is described enter husky neck be thin-walled
Vertical tubular structure, centre is provided with into husky passage, it is described enter husky passage section be rectangle；It is described enter husky neck cover plate cover in institute
State into above husky neck, two ends, which are provided with above leg, leg, is provided with top plate, and leg enters on husky neck thin-walled described in, the top plate
Lower space for it is elongated enter husky entrance；It is described to integrate husky container as thin-walled hollow structure, it is provided with above windward side and enters sand with entering husky neck
The adaptable opening of passage, one side opening, provided with chute, organic glass baffle can be moved in chute；The collection is husky to be held
The fine-structure mesh for being furnished with 300-500 mesh in gap, gap is provided with the middle of device upper surface；Training for sediment plate is provided with the husky container of collection, it is described
It is high in the middle part of training for sediment plate windward side, hold three face slope shapes and set up.
Preferably, the swash plate is connected with entering husky neck above with hinge.
Preferably, it is described enter husky neck height-adjustable.
Preferably, the long 10cm of the swash plate, width 5cm, thickness about 1mm, the long 40cm of the husky container of the collection, width 20cm, height
3cm。
Preferably, the long 34cm in training for sediment plate bottom surface, width 14.5cm, high 1.5cm.
Preferably, it is described enter the husky long 10cm of neck cover plate, wide 8mm.
Preferably, it is described enter husky neck cover plate enter husky entrance height for tri- kinds of 3mm, 4mm and 5mm.
Preferably, the width for integrating husky container upper surface gap is furnished with the fine-structure mesh of 400 mesh as 1cm in the gap.
The present invention is used for the compacted shifting sand-taped instrument of wind tunnel experiment, and the compacted shifting sand-taped instrument can efficiently collect compacted shifting particle, reduce
Experimental error.
Brief description of the drawings
Fig. 1 is the structural representation of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention.
Fig. 2 is that the compacted shifting sand-taped instrument of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention is used for wind tunnel laboratory
Schematic diagram.
Fig. 3 is vertical view of the training for sediment plate located at the husky container of collection of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention
Figure.
Fig. 4 is solid of the training for sediment plate located at the husky container of collection of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention
Figure.
Fig. 5 is the front view for entering husky neck cover plate of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention.
Fig. 6 is the structural representation for entering husky neck of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention.
Fig. 7 is the swash plate of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention, enters husky neck, enters husky neck cover plate phase
The structural representation connected.
Embodiment
Technical solution of the present invention is discussed in detail below in conjunction with the accompanying drawings.
As shown in figs. 1-7, present embodiment discloses a kind of compacted shifting sand-taped instrument for wind tunnel experiment, including swash plate 1, sand is entered
Neck 2, organic glass baffle 3, collection husky container 4, training for sediment plate 5, enter husky neck cover plate 6.Swash plate 1 is connected into the husky windward side of neck 2, connection
Hold with entering concordant above husky neck, the other end is placed on wind-tunnel bottom plate；It is described enter husky neck 2 be the vertical tubular structure of thin-walled, centre is set
Have a vertical husky passage that enters, it is described enter husky passage section be rectangle；It is described enter husky neck cover plate 6 cover it is described enter husky neck 2 on
Face, two ends are provided with leg 61, and leg 61 is provided with top plate 62 above, and leg 61 enters on husky neck thin-walled described in, the top plate 62
Lower space for it is elongated enter husky entrance 7；It is described to integrate husky container 4 as thin-walled hollow structure, it is provided with to enter with entering husky neck above windward side
The adaptable opening of husky passage, one side opening, provided with chute, organic glass baffle 3 can be moved in chute；The collection is husky
The fine-structure mesh for being furnished with 300-500 mesh in gap, gap is provided with the middle of the upper surface of container 4；Training for sediment plate 5 is provided with the husky container 4 of collection,
It is high in the middle part of the windward side of training for sediment plate 5, hold three face slope shapes and set up.
The swash plate 1 is connected with entering husky neck 2 above with hinge.
It is described enter husky neck 2 telescopic in height adjustment.
The long 10cm of swash plate, width 5cm, thickness about 1mm, the long 40cm of the husky container of the collection, width 20cm, high 3cm.
The long 34cm in training for sediment plate bottom surface, width 14.5cm, high 1.5cm.
It is described enter the husky long 10cm of neck cover plate, wide 8mm.
It is described enter husky neck cover plate enter the husky height of entrance 7 for tri- kinds of 3mm, 4mm and 5mm.
The width for integrating the husky upper surface gap of container 4 is furnished with the fine-structure mesh of 400 mesh as 1cm in the gap.
Fig. 2 is that the compacted shifting sand-taped instrument of the compacted shifting sand-taped instrument for wind tunnel experiment of the embodiment of the present invention is used for wind tunnel laboratory
Schematic diagram, compacted shifting sand-taped instrument is placed into wind turbine apparatus, bottom plate is placed on the left side as shown in the figure, and one end of swash plate is placed on into bottom plate
On, sand is covered with bottom plate, height is sanded highly concordant with entering husky neck.By adjusting wind speed during experiment, particle is set to occur compacted move
Motion.
Wind tunnel experiment is carried out, with the propulsion of experimental period, the Shamian Island on wind-tunnel bottom plate can be gradually thinning, compacted shifting grains of sand meeting
It is cannot be introduced into entering the accumulation of husky throat end into husky neck, the purpose of increase swash plate is that the compacted shifting grains of sand can smoothly be entered by swash plate
Enter sand inlet, reach the purpose for smoothly collecting compacted shifting particle.Swash plate is connected into husky neck windward side, and the swash plate other end can be along hinge
Direction rotates to an angle.
The husky neck that enters used has retractility, and the height into husky neck can be adjusted according to needed for user, it is therefore intended that convenient
Sand bed on sand inlet and wind tunnel floor is adjusted to sustained height.Enter husky neck and use separate structure, mesh with the husky container upper surface of collection
Be be convenient for changing into husky neck and maintenance.
The husky one end opening of collection, and have chute, organic glass baffle can be moved in chute.Here why use
Organic glass baffle, its object is to：1. lucite is transparent material, when being tested, in the convenient husky container of observation collection
The husky situation of portion's collection；2. after the completion of experiment, need to only extract organic glass baffle, just the grains of sand of the collection collected in husky container can be fallen
Go out.
The husky one end opening of collection, and have chute, convenient to be used cooperatively with organic glass baffle, other end closing.In collection
The fine-structure mesh for being furnished with 400 mesh in the wide gaps of 1cm, gap is provided with the middle of husky container upper surface, it is therefore intended that in experiment, collection will be entered
Air-flow discharge in husky container.
Training for sediment plate is placed in the husky container of collection, it is therefore intended that dredge the grains of sand entered in the husky container of collection to three sides are scattered,
Expand collection efficiency, prevent local accumulation.
The sand inlet cover plate of 3 kinds of different heights is set, is 3mm, 4mm and 5mm respectively, the purpose of sand inlet cover plate is to prevent jump
Move particle and fall into sand inlet.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (8)
1. a kind of compacted shifting sand-taped instrument for wind tunnel experiment, it is characterised in that including swash plate, enter husky neck, organic glass baffle, collection
Husky container, training for sediment plate and enter husky neck cover plate, swash plate is connected into husky neck windward side, and connection end is concordant above husky neck with entering, another
End is placed on wind-tunnel bottom plate；It is described enter husky neck be the vertical tubular structure of thin-walled, centre is provided with into husky passage, it is described enter husky passage
Section is rectangle；It is described enter husky neck cover plate cover it is described enter husky neck above, two ends are provided with leg, and top plate is provided with above leg,
Leg be located at it is described enter husky neck thin-walled on, the top plate lower space for it is elongated enter husky entrance；It is described to integrate husky container as thin-walled sky
It is provided with above core structure, windward side and enters the adaptable opening of husky passage with entering husky neck, one side opening, provided with chute, organic glass
Glass baffle plate can be moved in chute；It is provided with the middle of the husky container upper surface of collection in gap, gap thin equipped with 300-500 purposes
Net；It is provided with high in the middle part of training for sediment plate, the training for sediment plate windward side in the husky container of collection, holds three face slope shapes and set up.
2. the compacted shifting sand-taped instrument according to claim 1 for wind tunnel experiment, it is characterised in that the swash plate is with entering husky neck
It is connected above with hinge.
3. the compacted shifting sand-taped instrument according to claim 1 for wind tunnel experiment, it is characterised in that it is described enter husky neck height
It is adjustable.
4. the compacted shifting sand-taped instrument according to claim 4 for wind tunnel experiment, it is characterised in that the long 10cm of swash plate,
Wide 5cm, thickness about 1mm, the long 40cm of the husky container of the collection, width 20cm, high 3cm.
5. the compacted shifting sand-taped instrument according to claim 4 for wind tunnel experiment, it is characterised in that the training for sediment plate bottom surface is long
34cm, width 14.5cm, high 1.5cm.
6. the compacted shifting sand-taped instrument according to claim 4 for wind tunnel experiment, it is characterised in that it is described enter husky neck cover plate it is long
10cm, wide 8mm.
7. the compacted shifting sand-taped instrument according to claim 7 for wind tunnel experiment, it is characterised in that it is described enter husky neck cover plate enter
Husky entrance height is tri- kinds of 3mm, 4mm and 5mm.
8. the compacted shifting sand-taped instrument according to claim 4 for wind tunnel experiment, it is characterised in that the husky container upper table of the collection
The width in face gap is the fine-structure mesh equipped with 400 mesh in 1cm, the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131078.0A CN107044907B (en) | 2017-03-07 | 2017-03-07 | Vermicular motion sand collector for wind tunnel experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131078.0A CN107044907B (en) | 2017-03-07 | 2017-03-07 | Vermicular motion sand collector for wind tunnel experiment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044907A true CN107044907A (en) | 2017-08-15 |
| CN107044907B CN107044907B (en) | 2023-06-23 |
Family
ID=59545107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710131078.0A Active CN107044907B (en) | 2017-03-07 | 2017-03-07 | Vermicular motion sand collector for wind tunnel experiment |
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| US4199974A (en) * | 1978-09-15 | 1980-04-29 | The United States Of America As Represented By The Secretary Of The Interior | Eolian sand trap |
| CN1995941A (en) * | 2006-07-08 | 2007-07-11 | 中国科学院寒区旱区环境与工程研究所 | Omnibearing sand grain creeping and wind speed and wind direction dynamic collecting instrument |
| CN201408109Y (en) * | 2009-04-30 | 2010-02-17 | 中国科学院寒区旱区环境与工程研究所 | Sand trap for saltating sand grains in wind tunnel study of soil wind erosion |
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|---|---|---|---|---|
| US4199974A (en) * | 1978-09-15 | 1980-04-29 | The United States Of America As Represented By The Secretary Of The Interior | Eolian sand trap |
| CN1995941A (en) * | 2006-07-08 | 2007-07-11 | 中国科学院寒区旱区环境与工程研究所 | Omnibearing sand grain creeping and wind speed and wind direction dynamic collecting instrument |
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