CN103528418A - Swallow-shaped vortex fin - Google Patents
Swallow-shaped vortex fin Download PDFInfo
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- CN103528418A CN103528418A CN201310529302.3A CN201310529302A CN103528418A CN 103528418 A CN103528418 A CN 103528418A CN 201310529302 A CN201310529302 A CN 201310529302A CN 103528418 A CN103528418 A CN 103528418A
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Abstract
A swallow-shaped vortex fin comprises a triangular base (1), a triangular rib plate (3) and swallow-shaped wings (2) which are mutually connected. The triangular base (1) and the triangular rib plate (3) are triangular structural parts, a single side of the swallow-shaped vortex fin is fixed onto a shell of an airborne device, the bottom edge of the triangular rib plate is perpendicularly connected with the triangular base (1), the bevel edge of the triangular rib plate is connected with the bottoms of the swallow-shaped wings (2), the swallow-shaped wings (2) are supported on the triangular base (1), the triangular rib plate and the swallow-shaped wings (2) on two sides jointly induce laminar air into turbulent flow, the swallow-shaped wings (2) are two arc-shaped connectors with radiuses r, and the laminar air is induced into the turbulent flow. The swallow-shaped vortex fin is simple in structure and convenient to manufacture and has fine practical value and wide application prospect in the technical field of reliability of airborne devices, and air convection heat exchange coefficient and heat exchange amount are increased.
Description
Technical field
The present invention relates to a kind of swallow shape whirlpool fin, particularly a kind of housing air that is applied to flow through is laminar flow, temperature, weight and reliability is had to the heat exchange fin of the airborne equipment of strict demand.Belong to aviation airborne equipment reliability engineering field.
Background technology
The feature that airborne equipment power density is large, heat-sinking capability is poor causes its oil liquid temperature too high, jeopardizes flight safety, and oil temperature is too high is problem demanding prompt solution.When the air of the airborne equipment of flowing through is laminar flow, because the most of thermal resistance in diabatic process all concentrates on air side, the method that fin expansion area of dissipation is installed at present causes equipment volume and weight significantly to increase, and reduces aeroplane performance.Current existing radiating fin is mostly for one-sided air-flow, be not suitable for arranging on curved surface, in order to improve the induction of laminar-flow air and reliability, project proposes not need to increase external impetus, by arranging that swallow type whirlpool fin is induced the laminar-flow air of flowing through, be turbulent flow, mainly by improving the method for convection transfer rate rather than increase heat exchange area, control the temperature of airborne equipment.
Summary of the invention
The present invention has overcome in prior art, by increasing heat exchange area, improve the deficiency that housing heat radiation causes traditional heat-exchange method that volume and weight significantly increases, provide without external impetus, by induction, flowed through housing laminar-flow air for a kind of swallow shape whirlpool fin turbulent, that reduce heat-exchanger rig weight and volume.
The present invention realizes by following measures:
A kind of swallow shape of the present invention whirlpool fin, comprises triangle base 1, triangular stall board 3 and 2 three parts of the swallow shape wing, and three interconnects.This triangle base 1 is triangular structure part, and swallow shape whirlpool fin is fixed on the housing of airborne equipment, different according to surface of shell shape and structure, can plane, and can be also curved surface, in order to alleviate swallow shape whirlpool fin weight, triangle base 1 is single-sided arrangement only; This triangular stall board 3 is triangular structure part, and its base is connected with triangle base 1 is vertical, and its hypotenuse is connected and the swallow shape wing 2 is supported on triangle base 1 with the bottom of the swallow shape wing 2, is turbulent flow with the common induction laminar-flow air of the swallow shape wing 2 of bilateral simultaneously; This swallow shape wing 2 is the circular-arc connector of two radius r, by laminar-flow air induction, is turbulent flow.
Wherein, this swallow shape whirlpool fin has three structural parameters, i.e. base length c, swallow-wing height b and swallow shape wing radius r; Swallow-wing height b determines, need meet best string exhibition than the condition that arranges of A=b/c and swallow shape wing radius r simultaneously.
As the swallow shape whirlpool fin of above-mentioned form, the string exhibition of optimizing swallow shape whirlpool fin according to hydrodynamics, than A and swallow shape wing radius r, makes swallow shape whirlpool fin destroy lamina air flow and forms maximum intensity turbulent flow.The swallow shape whirlpool fin bilateral laminar-flow air of flowing through can form eddy current, is conducive to it and arranges at curved surface.It is simple in structure, easily manufactured, by laminar-flow air induction, is turbulent air raising housing heat dissipation rate, and without external impetus.
The invention has the beneficial effects as follows: 1. the present invention is different from tradition and expands heat exchange area method and improve housing heat exchange amount by heat exchanger fin is installed, but be that turbulent flow improves convection transfer rate method raising heat exchange amount by swallow type whirlpool fin induced air laminar flow; 2. swallow type whirlpool fin bilateral has Yan Xingyi, and both sides can form eddy current, is conducive to it and arranges at housing curved surface; 3. swallow type whirlpool fin structure is simple, easily manufactured, with less cost, significantly improves housing heat exchange efficiency; 4. swallow type whirlpool fin is without external impetus, concerning volume, weight and reliability have the airborne equipment of strict demand, has theory significance and practical value.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention;
Fig. 2 (a) is the front view of swallow shape whirlpool fin;
Fig. 2 (b) is the top view of swallow shape whirlpool fin;
Fig. 2 (c) is the left view of swallow shape whirlpool fin;
In figure, sequence number, code name are described as follows:
1 is triangle base, and 2 is Yan Xingyi, and 3 is triangular stall board;
C is base length, and b is swallow-wing height, and k is base width.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is illustrated.
The structure of the embodiment of the present invention is as shown in Fig. 1 and Fig. 2 (a), Fig. 2 (b), Fig. 2 (c).Bilateral symmetry distributes, and it is comprised of triangle base 1, the swallow shape wing 2 and triangular stall board 3, and three interconnects.This triangular stall board 3 is triangular structure part, and its base is connected with triangle base 1 is vertical, and its hypotenuse is connected and the swallow shape wing 2 is supported on triangle base 1 with the bottom of the swallow shape wing 2.This swallow shape wing 2 is the circular-arc connector of two radius r, by laminar-flow air induction, is turbulent flow.This triangle base 1 is triangular structure part, only plays the fixedly effect of swallow type whirlpool fin, in order to alleviate this fin quality, is guaranteeing to reduce as far as possible size and the weight of triangle base 1 under reliable installation situation, and is conducive to it and arranges at curved surface.
Wherein, this swallow shape whirlpool fin has three structural parameters, i.e. base length c, swallow-wing height b and swallow shape wing radius r; Swallow-wing height b determines, need meet best string exhibition than the condition that arranges of A=b/c and swallow shape wing radius r simultaneously.
When laminar-flow air is flowed through swallow type whirlpool fin from bilateral, under the induction of triangular stall board 3 and the swallow shape wing 2, form eddy current, the conduction heat exchange between the outer laminar-flow air of housing is converted to heat convection, improve convection transfer rate.The string exhibition of optimizing swallow shape whirlpool fin according to hydrodynamics, than A and swallow shape wing radius r, can obtain best disturbance effect.When swallow type whirlpool fin is installed, head is front, and afterbody is rear, identical with gas flow direction.
The present invention is optimized for swallow type whirlpool fin structure under the field of augmentation of heat transfer Synergy instructs, make its induction laminar-flow air for turbulent flow raising housing heat dissipation rate, and without external impetus, simple in structure, easily manufactured, concerning having the airborne equipment of strict demand, weight and reliability there is great theory significance and engineering using value.
Claims (2)
1. a swallow shape whirlpool fin, is characterized in that: it comprises triangle base (1), triangular stall board (3) and (2) three parts of Yan Xingyi, and three interconnects; This triangle base (1) is triangular structure part, by the one-sided housing that is fixed on airborne equipment of swallow shape whirlpool fin; This triangular stall board (3) is triangular structure part, its base and vertical being connected of triangle base (1), its hypotenuse is connected with the bottom of Yan Xingyi (2) and that Yan Xingyi (2) is supported on to triangle base (1) is upper, and jointly induce laminar-flow air with the Yan Xingyi (2) of bilateral is turbulent flow simultaneously; This Yan Xingyi (2) is the circular-arc connector of two radius r, by laminar-flow air induction, is turbulent flow.
2. a kind of swallow shape according to claim 1 whirlpool fin, is characterized in that: this swallow shape whirlpool fin has three structural parameters, i.e. base length c, swallow-wing height b and swallow shape wing radius r; Swallow-wing height b determines, need meet best string exhibition than the condition that arranges of A=b/c and swallow shape wing radius r simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310529302.3A CN103528418B (en) | 2013-10-31 | 2013-10-31 | Swallow-shaped vortex fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310529302.3A CN103528418B (en) | 2013-10-31 | 2013-10-31 | Swallow-shaped vortex fin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103528418A true CN103528418A (en) | 2014-01-22 |
| CN103528418B CN103528418B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310529302.3A Expired - Fee Related CN103528418B (en) | 2013-10-31 | 2013-10-31 | Swallow-shaped vortex fin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043155A (en) * | 2015-07-24 | 2015-11-11 | 北京航空航天大学 | Conical-cylinder type vortex fin |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739619A1 (en) * | 1987-11-23 | 1988-04-07 | Martin Prof Dr Ing Fiebig | Funnel vortex generators and heat exchange (transfer) surfaces for heat exchangers |
| JP2003279293A (en) * | 2002-03-20 | 2003-10-02 | Denso Corp | Exhaust heat exchanger |
| US20100288379A1 (en) * | 2009-03-30 | 2010-11-18 | Dahm Werner J A | Passive boundary layer control elements |
| EP2439476A2 (en) * | 2010-10-05 | 2012-04-11 | Frenger Systems Limited | Heat exchanger for air conditioning systems comprising a conduit with longitudinal fins |
| CN102444453A (en) * | 2011-12-14 | 2012-05-09 | 杭州银轮科技有限公司 | Static mixer for exhaust system |
| CN202836328U (en) * | 2011-12-31 | 2013-03-27 | 南通江华热动力机械有限公司 | Flow-disturbing element |
-
2013
- 2013-10-31 CN CN201310529302.3A patent/CN103528418B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3739619A1 (en) * | 1987-11-23 | 1988-04-07 | Martin Prof Dr Ing Fiebig | Funnel vortex generators and heat exchange (transfer) surfaces for heat exchangers |
| JP2003279293A (en) * | 2002-03-20 | 2003-10-02 | Denso Corp | Exhaust heat exchanger |
| US20100288379A1 (en) * | 2009-03-30 | 2010-11-18 | Dahm Werner J A | Passive boundary layer control elements |
| EP2439476A2 (en) * | 2010-10-05 | 2012-04-11 | Frenger Systems Limited | Heat exchanger for air conditioning systems comprising a conduit with longitudinal fins |
| CN102444453A (en) * | 2011-12-14 | 2012-05-09 | 杭州银轮科技有限公司 | Static mixer for exhaust system |
| CN202836328U (en) * | 2011-12-31 | 2013-03-27 | 南通江华热动力机械有限公司 | Flow-disturbing element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043155A (en) * | 2015-07-24 | 2015-11-11 | 北京航空航天大学 | Conical-cylinder type vortex fin |
| CN105043155B (en) * | 2015-07-24 | 2017-01-18 | 北京航空航天大学 | Conical-cylinder type vortex fin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103528418B (en) | 2015-06-24 |
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Granted publication date: 20150624 Termination date: 20161031 |