The flowfield past a body of revolution at large incidence may develop an asymmetric wake that induces a significant side force. It remains a challenging problem for both computational and experimental analyses, with massive separation and coexistence of steady and unsteady regions. A number of researchers have studied the complex separated flow on the lee side. This paper focuses on the role played by the attached flow on the windward side. Solutions obtained with unsteady Reynolds-averaged Navier–Stokes computation, shown to be in good agreement with experimental data, are used to investigate the contributions of the attached and separated regions of the flow to the forces acting on the body. A strongly unbalanced pressure distribution of the attached flow is responsible of most of the side force. A description of the crossflow structure is given to explain the large magnitude of the sectional side force, sometimes exceeding that of the normal force.

流场以大入射角经过旋转体可能会产生不对称的尾流，从而引起显着的侧向力。对于计算和实验分析来说，它仍然是一个具有挑战性的问题，稳定和不稳定区域的大量分离和共存。许多研究人员研究了背风侧的复杂分离流。本文重点讨论迎风侧附着流所起的作用。使用非定常雷诺平均 Navier-Stokes 计算获得的解决方案与实验数据非常吻合，用于研究流动的附着和分离区域对作用在身体上的力的贡献。附着流的强烈不平衡压力分布是大部分侧向力的原因。