Research on numerical simulation method of propeller-driven aircraft flow fields at low altitude

Hui He, Ai Ming Shi, Zheng Yin Ye

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

A high efficient numerical simulation method of propeller-driven aircraft flow fields at low altitude is developed through the consideration of the influence of ground effect and prop slipstream on aerodynamics. The computed space meshes with ground effect of a propeller-driven aircraft are established with an unstructured meshing technology. The prismatic meshes with the same height near ground are joined to space meshes at different ground height using an algebraic method, being high efficient for creating meshes. The slipstream boundary condition is imposed on the surface swept by prop, and the flow fields of the propeller-driven aircraft are calculated by solving compressible Euler equations with numerical method. The method avoids mass calculation of simulating the prop circumrotating with high velocity and improves computing efficiency greatly. The influence of ground effect and prop slipstream on aerodynamics is investigated and the variety regularity of aerodynamic performance parameters is obtained. The numerical calculation results are compared with experimental ones. Results indicate that the present method is feasible and efficient, and can provide technical support for propeller-driven aircraft design.

源语言英语
页(从-至)222-226
页数5
期刊Gongcheng Lixue/Engineering Mechanics
26
2
出版状态已出版 - 2月 2009

指纹

探究 'Research on numerical simulation method of propeller-driven aircraft flow fields at low altitude' 的科研主题。它们共同构成独一无二的指纹。

引用此