CN101881692A - Flow state display comb tube for automobile wind tunnel - Google Patents
Flow state display comb tube for automobile wind tunnel Download PDFInfo
- Publication number
- CN101881692A CN101881692A CN 201010217670 CN201010217670A CN101881692A CN 101881692 A CN101881692 A CN 101881692A CN 201010217670 CN201010217670 CN 201010217670 CN 201010217670 A CN201010217670 A CN 201010217670A CN 101881692 A CN101881692 A CN 101881692A
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- base
- wind tunnel
- reinforcement
- pectination
- automobile wind
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a flow state display comb tube for an automobile wind tunnel belonging to the technical field of automobile wind tunnel tests, which is composed of a base, a tension line II, a tension line I and an upper assembly, wherein the upper assembly is fixedly connected with the base through a lower reinforcing rib thereon; the lower ends of the tension line I and the tension line II are respectively fixedly connected to two sides of the base; the upper end of the tension line I is fixedly connected with the upper end at one side of a symmetrical wing-type ladle lid of the upper assembly; the upper end of the tension line II is fixedly connected with the upper end at the other side of the symmetrical wing-type ladle lid of the upper assembly; and the base is provided with a through hole. The drag coefficient of the invention is nearly zero; the comb tube has little obstruction on flow, can effectively reduce interference thereof on the flow field of the automobile wind tunnel, prevent separation and reduce influence on flow field quality of a test section; and the operation is convenient, and multi-point smoke flow state visualization can be realized from a model to the whole automobile aiming at automobiles with different proportions.
Description
Technical field
The invention belongs to automobile wind tunnel experimental technique field, be specifically related to flow state display comb tube for automobile wind tunnel.
Background technology
Carrying out vehicle complete vehicle or model plume attitude in general automobile wind tunnel shows when testing, the beam that employing is fixed between hole, top wall and hole, the bottom wall supports, fixed belt hole pipe thereon, arrange according to certain distance in the hole, or the pipe with holes that certain rigidity and intensity directly will be arranged is fixed between wind-tunnel roof and the bottom, arrange according to certain distance in hole on the pipe, the cigarette that from pipe, flows through like this from the hole by the negative pressure sucking-off of tunnel airstream, thereby form the plume of pectination, process vehicle complete vehicle or model have just formed the plume attitude in automobile cross section.There are two drawbacks in traditional comb pipe with holes: 1 is supported for girder steel or pipe, is in fully in the flow field, and the interference of stream field is big, when plume is flowing in no show test car or model, separation or whirlpool has just taken place; 2 because girder steel or pipe are blunt form, and the flow field resistance is very big, and therefore, traditional plume attitude pipe design can not truly reflect the fluidised form of automobile or model.
Summary of the invention
The object of the present invention is to provide and a kind ofly can reduce pectination separation flow and resistance to flow, and prevent to produce thereafter eddy current, obtain the flow state display comb tube for automobile wind tunnel that the automobile wind tunnel fluidised form shows experimental result truly.
The present invention is made up of base 6, tensioned thread II 7, tensioned thread I 10 and top assembly 11, and wherein the following reinforcement 5 of top assembly 11 on it is affixed with base 6; Tensioned thread I 10 and tensioned thread II 7 lower ends are fixed in base 6 both sides respectively, and the symmetrical airfoil ladle cover 1 one sides upper end of tensioned thread I 10 upper ends and top assembly 11 is affixed, and tensioned thread II 7 upper ends and symmetrical airfoil ladle cover 1 opposite side upper end are affixed; Base 6 is provided with through hole.
Utilize the present invention when the plume attitude of carrying out vehicle complete vehicle or car model shows experiment, can be according to the height of vehicle complete vehicle or car model, at any time easily the nut 3 of pectination jet pipe 2 in symmetrical airfoil ladle cover 1 one side opening places unloaded or load onto, reach the purpose of control plume.
For reducing the separation flow and the eddy current of plume, reduce the interference and the obstruction of pitot traverse stream field, symmetrical airfoil ladle cover 1 adopts airflow design.
Setting up tensioned thread, and be fastened on the base, is for whole device tensioning, thereby prevents top assembly 11 (comprise symmetrical airfoil ladle cover 1, pectination jet pipe 2, middle reinforcement 4, reinforcement 5, column tube 8 and last reinforcement 9) down chatter under wind action.
Disturb and separation flow in flow field for fear of device, and the circular arc chamfering of 10mm radius is adopted in the junction of pectination jet pipe 2 and column tube 8, and connect with the pipe thread form.
Beneficial effect of the present invention is:
1. air resistance coefficient is almost nil, and is little to the obstruction that flows;
2. can effectively reduce of the interference of this device to the automobile wind tunnel flow field;
3. can prevent to separate, and minimizing is to the influence of test section flow field quality;
4. easy to operate, and can realize that the plume attitude of carrying out multiple spot from the model to the car load shows at the automobile of different proportion.
Description of drawings
Fig. 1 is the flow state display comb tube for automobile wind tunnel front view
Fig. 2 is the flow state display comb tube for automobile wind tunnel left view
Fig. 3 is the flow state display comb tube for automobile wind tunnel vertical view
Fig. 4 is a flow state display comb tube for automobile wind tunnel A-A cross-sectional view
Fig. 5 is a flow state display comb tube for automobile wind tunnel B-B cross-sectional view
Wherein: 1. reinforcement 10. tensioned thread I 11. top assemblies on 5. times reinforcements of reinforcement, 6. bases, 7. tensioned thread II, 8. column tubes 9. in symmetrical airfoil ladle cover 2. pectination jet pipes 3. nuts 4.
Embodiment
The present invention is made up of base 6, tensioned thread II 7, tensioned thread I 10 and top assembly 11, and wherein the following reinforcement 5 of top assembly 11 on it is affixed with base 6; Tensioned thread I 10 and tensioned thread II 7 lower ends are fixed in base 6 both sides respectively, and the symmetrical airfoil ladle cover 1 one sides upper end of tensioned thread I 10 upper ends and top assembly 11 is affixed, and tensioned thread II 7 upper ends and symmetrical airfoil ladle cover 1 opposite side upper end are affixed; Base 6 is provided with through hole.
The height of column tube 8 is 1500mm, and internal diameter is 30--50mm, thickness of pipe 8--10mm.
The set pitch-row (i.e. the center distance of two pectination jet pipes) of column tube 8 sidewalls is 150--300mm.
Symmetrical airfoil ladle cover 1 is designed to streamlined, and its thickness of slab is 2--6mm.
The material of symmetrical airfoil ladle cover 1, column tube 8 is stainless steel; The material of base 6 is a plow-steel.
Claims (3)
1. a flow state display comb tube for automobile wind tunnel is characterized in that being made up of base (6), tensioned thread II (7), tensioned thread I (10) and top assembly (11), and wherein the following reinforcement (5) of top assembly (11) on it is affixed with base (6); Tensioned thread I (10) and tensioned thread II (7) lower end are fixed in base (6) both sides respectively, tensioned thread I (10) upper end is affixed with symmetrical airfoil ladle cover (1) the one side upper end of top assembly (11), and tensioned thread II (7) upper end is affixed with symmetrical airfoil ladle cover (1) opposite side upper end; Base (6) is provided with through hole.
2. by the described flow state display comb tube for automobile wind tunnel of claim 1, it is characterized in that described top assembly (11) is by symmetrical airfoil ladle cover (1), pectination jet pipe (2), middle reinforcement (4), reinforcement (5), column tube (8) and last reinforcement (9) are formed down, wherein column tube (8) sidewall is provided with equidistant through hole, each through hole is affixed with each pectination jet pipe (2) one end and be communicated with, and each pectination jet pipe (2) other end is opened on symmetrical airfoil ladle cover (1) one side; Symmetrical airfoil ladle cover (1) constitutes fixing integral body through being fixed in last reinforcement (9) wherein, middle reinforcement (4) and following reinforcement (5) with column tube (8) and each pectination jet pipe (2); Column tube (8) upper end is tightly connected with last reinforcement (9), and the opening of column tube (8) lower end is connected with the through hole of base (6).
3. by the described flow state display comb tube for automobile wind tunnel of claim 2, it is characterized in that described pectination jet pipe (2) is provided with screw thread in the opening part of symmetrical airfoil ladle cover (1) one side, is equipped with nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010217670 CN101881692A (en) | 2010-07-02 | 2010-07-02 | Flow state display comb tube for automobile wind tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010217670 CN101881692A (en) | 2010-07-02 | 2010-07-02 | Flow state display comb tube for automobile wind tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101881692A true CN101881692A (en) | 2010-11-10 |
Family
ID=43053755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010217670 Pending CN101881692A (en) | 2010-07-02 | 2010-07-02 | Flow state display comb tube for automobile wind tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101881692A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295316A (en) * | 2021-12-31 | 2022-04-08 | 重庆交通大学绿色航空技术研究院 | Suction type transonic velocity plane cascade test bed air inlet device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201788U (en) * | 1986-04-01 | 1987-02-25 | 唐新华 | Modular plastic wall for wind-proof sand-fixation |
| JPH10115571A (en) * | 1996-10-09 | 1998-05-06 | Mitsubishi Heavy Ind Ltd | Wind-tunnel experimenting apparatus |
| JPH11258106A (en) * | 1998-03-09 | 1999-09-24 | Railway Technical Res Inst | Frame device |
| JP3733415B2 (en) * | 1999-08-20 | 2006-01-11 | 独立行政法人科学技術振興機構 | Smoke blower |
| CN100557397C (en) * | 2006-07-19 | 2009-11-04 | 湖南大学 | Test device for wind tunnel color smoke flow |
| CN201731987U (en) * | 2010-07-02 | 2011-02-02 | 吉林大学 | Automobile wind tunnel flow state display pipe manifold |
-
2010
- 2010-07-02 CN CN 201010217670 patent/CN101881692A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86201788U (en) * | 1986-04-01 | 1987-02-25 | 唐新华 | Modular plastic wall for wind-proof sand-fixation |
| JPH10115571A (en) * | 1996-10-09 | 1998-05-06 | Mitsubishi Heavy Ind Ltd | Wind-tunnel experimenting apparatus |
| JPH11258106A (en) * | 1998-03-09 | 1999-09-24 | Railway Technical Res Inst | Frame device |
| JP3733415B2 (en) * | 1999-08-20 | 2006-01-11 | 独立行政法人科学技術振興機構 | Smoke blower |
| CN100557397C (en) * | 2006-07-19 | 2009-11-04 | 湖南大学 | Test device for wind tunnel color smoke flow |
| CN201731987U (en) * | 2010-07-02 | 2011-02-02 | 吉林大学 | Automobile wind tunnel flow state display pipe manifold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295316A (en) * | 2021-12-31 | 2022-04-08 | 重庆交通大学绿色航空技术研究院 | Suction type transonic velocity plane cascade test bed air inlet device |
| CN114295316B (en) * | 2021-12-31 | 2023-12-12 | 重庆交通大学绿色航空技术研究院 | Suction type transonic plane blade grid test bed air inlet device |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101110 |