冲击加多斜孔双层壁对流与冲击换热优化研究

唐庆如

冲击加多斜孔双层壁对流与冲击换热优化研究

唐庆如

中国民航飞行学院, 广汉 618307

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- 被引次数: 0
出版历程
- 收稿日期: 2006-03-20
- 修回日期: 2006-10-30
- 刊出日期: 2007-03-28

A study of optimization of convection and heat transfer of impingement/effusion double wall

TANG Qing-ru

Civil Aviation Flight University of China, Guanghan 618307, China

摘要

摘要: 对冲击加多斜孔双层壁孔内对流和冲击换热这两部分冷却达到最大进行了优化.冲击加多斜孔双层壁结构中单位面积冲击孔数量和多斜孔数量比为1∶3, 多斜孔倾角为30°.本优化属于混合约束优化, 采用序列无约束极小化方法进行优化.通过计算分析, 得出了在冲击加多斜孔双层壁在压力降和单位面积冷却气量一定条件下的优化结果, 存在冲击换热和多斜孔内换热的最佳分配, 该结果对指导冲击加多斜孔双层壁设计有指导意义.
- 航空、航天推进系统 /
- 航空发动机 /
- 气膜冷却 /
- 冲击加多斜孔冷却 /
- 优化
Abstract: The convection and heat transfer within the effusion holes of impingement/effusion double wall were optimized to get the maximum internal cooling effect.The ratio of the number of impingement holes to the number of effusion holes per unit area is 1∶3,and the angel of effusion hole is 30 degree.As a hybrid restriction optimization approach,the sequential unconstrained minimization technique was applied for optimization.The optimal results of impingement/effusion double wall were obtained under the pressure drop and unit-area cooling air flow.The results indicate an optimal distribution between the impingement heat transfer and the convective heat transfer within the effusion holes,providing a basis for design of the impingement/effusion double wall for engineering applications.
- aerospace propulsion system /
- aero-engine /
- film cooling /
- impingement/effusion cooling /
- optimization

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参考文献(9)

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