细长体大攻角非对称分离的数值模拟研究

Numerical Simulation Study on Asymmetry Detached Flow of a Slender Body at High Angles of Attack

对于旋成体大攻角非对称分离进行数值模拟。通过对DES方法和RANS方法模拟细长体非对称分离流动不同结果的比较,揭示了DES方法在大攻角分离流动模拟方面具有明显的优势,能充分模拟出大攻角分离的非对称特性。通过对比研究,说明DES方法是适合细长体非对称分离研究的数值方法。

The numerical simulation means on asymmetry detached flow of a slender at high angles of attack are analysed. Companring the different result simulated by Detached-Eddy Simulation （DES） and Reynolds-averaged Navier-Stokes （RANS） for the asymmetry detached flow around a slender, DES has more advantageous for the separated flow simulation at high incidence and can simulate efficiently flow asymmetry. The result shows that DES is a more effective numerical simulation means for currently research.