Adjoint Optimization Method for Aerodynamic Inverse Problem of Cascades

doi:10.7652/xjtuxb201709020

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Adjoint Optimization Method for Aerodynamic Inverse Problem of Cascades

更新时间：2025-07-09

- Adjoint Optimization Method for Aerodynamic Inverse Problem of Cascades
- Vol. 51, Issue 9, Pages: 138-144(2017)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201709020
  CLC： V231.3
- Online First：10 September 2017，
  
  Published：2017
- 稿件说明：
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Adjoint Optimization Method for Aerodynamic Inverse Problem of Cascades[J]. 2017, 51(9): 138-144.
DOI：

Adjoint Optimization Method for Aerodynamic Inverse Problem of Cascades[J]. 2017, 51(9): 138-144. DOI： 10.7652/xjtuxb201709020.

摘要

伴随方法是目前流体机械优化设计领域的研究热点

具有计算量与设计变量数目基本无关的优点。鉴于以往相关研究尚未将伴随方法用于有分离流动条件下的叶栅气动反问题设计

建立了一套集叶片几何参数化、网格生成、流场求解、伴随场求解与优化求解于一体的叶栅气动反问题的优化求解方法

从减弱流动分离的角度出发

通过给定更合适的叶片表面压力分布

完成了叶栅反问题求解。研究表明

所得叶片吸力面型线更为平缓

在所研究的2种攻角下的尾缘附近流动分离较优化前得到了有效缓解。该研究有利于发展高效、宽工况叶栅设计技术

并可为复杂流体机械部件的先进设计奠定理论基础。

Abstract

Adjoint method based design optimization is currently a hot topic in the field of fluid machinery

which has the advantage that the computation cost is almost independent of the number of design variables. In view of that few efforts in previous researches have been devoted to the inverse aerodynamic design of cascades with flow separation by means of the adjoint method

an optimization method for aerodynamic inverse problem of cascade

which includes blade geometry parameterization

grid generation

flow solving

adjoint field solving and optimizing

is proposed. From the point of view of weakening the flow separation

the aerodynamic inverse design of a cascade is completed by giving a desirable surface pressure distribution on the blade. The results show that the suction profile of the obtained blade becomes flatter than the initial design

and the flow separation near the trailing edge is weakened at two investigated attack angles. This approach is beneficial for the development of aerodynamic design technology of cascades with higher efficiency and wider operating range.

关键词

Keywords

references

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