平板上有叶片绕流的源项模型

高立虎; 张锡文; 何枫; 朱宇

平板上有叶片绕流的源项模型

1.
清华大学航天航空学院, 北京 100084
2.
沈阳飞机设计研究所, 沈阳 110035

计量
- 文章访问数: 1463
- HTML浏览量: 1
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- 被引次数: 0
出版历程
- 收稿日期: 2006-07-31
- 修回日期: 2006-11-25
- 刊出日期: 2007-08-28

Source term model of vane flow on a flat plate

1.
School of Aerospace, Tsinghua University, Beijing 100084, China
2.
Shenyang Aircraft Research Institute, Shenyang 110035, China

摘要

摘要: 将源项模型应用于叶片涡流发生器的数值模拟中, 以叶片在当地流场中产生的升力作为源项一个分量原型, 并引入了法向力作为源项另一个分量原型.该源项由叶片的形状、大小、位置以及来流条件等参数决定.在数值模拟中, 叶片位于平板上, 其高度约为当地边界层厚度的1/5.在相同计算条件下, 对"升力-法向力"源项模型计算结果和全网格计算结果及实验数据进行比较.源项模型可以得到与全网格数值模拟基本一致的诱导速度场和涡量场, 而网格量减少了65%.
- 航空、航天推进系统 /
- 叶片 /
- 源项模型 /
- 涡流发生器 /
- 法向力 /
- 流向涡
Abstract: A source term model was applied to numerical simulation of a vane vortex generator, where the lift force created by a vane vortex generator was used as one part of the prototype of source term model, and a normal force was introduced as the other one.The source term depends on the shape, size and location of the vane and the freestream conditions.During numerical simulation, the vane was located on a flat plate, with its height about one fifth of the thickness of local boundary layer.The calculated results of "lift & normal force" source term model were compared under the same conditions with the calculated results and experimental data for a full gridded vane vortex generator.This source term model helps to predict the velocity and vortex fields in consistent with a full gridded vane vortex, but the grid number reduces by 65%.
- aerospace propulsion system /
- vane /
- source term model /
- vortex generator /
- normal force /
- streamwise vortex

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参考文献(6)

[1]	Wendt B J.Initial circulation and peak vorticity behavior of vortices shed from airfoil vortex generators[R].NASA/CR-2001-211144,2001.
[2]	Allan B G,Yao C S,Lin J C.Numerical simulations of vortex generator vanes and jets on a flat plate[R].AIAA 2002-3160,2002.
[3]	Bender E E,and Anderson B H.Vortex generator modeling for Navier-Stokes codes[C] // Proceedings of the 3rd ASME/JSME Joint Fluids Engineering Conference,San Francisco,California:[s.n.].July 18-23,1999.
[4]	Waithe K A.Source term model for an array of vortex generator vanes[R].NASA/CR-2003-212157,2003.
[5]	Waithe K A.Source term model for vortex generator vanes in a Navier-Stokes computer code[C]//The 42nd AIAA Aerospace Sciences Meeting and Exhibit Reno,Nevada:[s.n.],January 5-8,2004.
[6]	Chima R V.Computational modeling of vortex generators for turbomachinery[C]//Proceedings of TURBO EXPO Amsterdam,the Netherlands:[s.n.],2002.