Calculation of Symmetric and Asymmetric Vortex Seperation on Cones and Tangent Ogives Based on Discrete Vortex Models

Calculation of Symmetric and Asymmetric Vortex Seperation on Cones and Tangent Ogives Based on Discrete Vortex Models

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Publisher's Synopsis

An inviscid discrete vortex model, with newly derived expressions for the tangential velocity imposed at the separation points, is used to investigate the symmetric and asymmetric vortex separation on cones and tangent ogives. The circumferential locations of separation are taken from experimental data. Based on a slender body theory, the resulting simultaneous nonlinear algebraic equations in a cross-flow plane are solved with Broyden's modified Newton-Raphson method. Total force coefficients are obtained through momentum principle with new expressions for nonconical flow. It is shown through the method of function deflation that multiple solutions exist at large enough angles of attack, even with symmetric separation points. These additional solutions are asymmetric in vortex separation and produce side force coefficients which agree well with data for cones and tangent ogives. Chin, S. and Lan, C. Edward Unspecified Center...

Book information

ISBN: 9781730931253
Publisher: Independently Published
Imprint: Independently Published
Pub date:
Language: English
Number of pages: 94
Weight: 240g
Height: 280mm
Width: 216mm
Spine width: 5mm