球心非对称的钝圆头体近区绕流场气动特性分析研究

Study on the near-field aerodynamic characteristics of asymmetry spherical forebody of blunt body

摘要: 本文采用数值模拟对球心非对称的钝圆头体附近流场气动特性进行分析研究。数值求解三维可压缩NS方程，采用NND格式，以修正的Baldwin-Lomax代数模型对不同飞行状态进行数值模拟，分析了球心非对称钝圆头体对流场的影响，与部分试验比较结果满意。

Abstract: In this paper, numerical simulation is applied to investigate thenear-field aerodynamic characteristics of asymmetry spherical forebody of blunt body. The problems are formulated by using the unsteady, compressible Navier-Stokes equations. The equations a