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| Finite spectral computation of incompressible flows around airfoil |
| Revised:July 29, 2003 |
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| DOI：10.7511/jslx20055103 |
| KeyWord:finite spectral method,spectral methods,incompressible flows |
| QIU Quan-hui~1 WANG Jian-ping~ |
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| Abstract: |
| Finite Spectral QUICK scheme is developed to calculate incompressible viscous flows.This scheme is used to simulate the flows around NACA1200 airfoil at different angles of attack.In terms of body forces,a method of accelerating the flow velocity from 0 to freestream velocity in proposed.In contract to the conventional boundary condition with zero pressure gradient,an accurate formula for boundary condition of pressure is derived.In order to keep the divergence of velocity being zero,a special treatment of divergence term in Poisson equation is proposed.This application indicates that finite spectral method possesses not only high accuracy but also high flexibility for complex incompressible flow problems. |
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