APPLICATION OF THE VORTEX-LATTICE TECHNIQUE TO ARBITRARY BODIES

被引：4

作者：

ASFAR, KR

MOOK, DT

NAYFEH, AH

机构：

[1] Virginia Polytechnic Institute and State University, Blacksburg, VA

来源：

JOURNAL OF AIRCRAFT | 1979年 / 16卷 / 07期

关键词：

D O I：

10.2514/3.58543

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

A numerical technique that predicts the potential flowfield past arbitrary bodies is presented. To epresent thebody surface, the technique utilizes a combination of a vortex lattice and sources. The vortex-lattice is formed byconstant-strength quadrilateral, as well as triangular, elements. The technique features the minimum selfinduced-velocity control point, which was found to be the best choice, and uses the element loop circulations asthe unknowns while working with predetermined surface-source strengths. For blunt bodies, the combination ofa vortex lattice and sources appears to be superior to either the votex lattice or the sources acting alone. Forslender bodies, the combination offers no apparent advantage over the vortex lattice alone, and the vortex latticeappears to be superior to the sources. This technique was tested by comparing the predicted pressures with exactsolutions and experimental data. The present method can reliably and accurately treat flows past arbitrarybodies. © 1979 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.

引用

页码：421 / 424

页数：4

共 11 条

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