24 April 2014
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A field-panel approach for transonic flow calculations about 3D configurations

Author(s): D. Fokin, L. Gebhardt, Th. Lutz and S. Wagner

Abstract:
The purpose of the present work is to develop a mathematically sound and efficient field-panel method for the analysis of inviscid transonic flow over 3D aircraft configurations taking the effects of (weak) shock waves into account. The problem is reduced to a system of two nonlinear integro-differential equations for the disturbance potential in the field and the singularity dis- tribution on a reference surface.

An iteration procedure incorporating the boundary element method to satisfy the impermeability conditions on the body (Neumann formulation), coupled with a correction for compressibility effects based on the full potential equation has been developed.

The arti- ficial viscosity concept is used to stabilize the process for transonic cases. Exemplary results of...

Pages: 10
Size: 1,141 kb
Paper DOI: 10.2495/BE010181

 

 

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Boundary Elements XXIII

Boundary Elements XXIII

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