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该文以综合显示头盔为研究对象,对其进行合理简化,获得了接近实体的头盔面罩组合体几何模型。利用CFD技术,采用有限体积法,对配装此综合显示头盔的人椅系统进行了外流场气动特征的仿真分析,获取了综合显示头盔的外流场气动特征及颈部升力、阻力。主要研究内容包括:(1)气动建模;(2)气动网格划分:(3)气动特征求解。
In this paper, a comprehensive display of helmet as the research object, which is reasonably simplified to obtain a close to the physical helmet mask assembly geometry model. The finite element method (CFD) was used to simulate the aerodynamic characteristics of the human-seat system fitted with the integrated helmets, and the aerodynamic characteristics of the outward flow field and the lift and drag of the neck were obtained. The main research contents include: (1) Aerodynamic modeling; (2) Pneumatic meshing; (3) Pneumatic feature solution.