摘要
本文探讨了有限元网格间距对活塞轴对称瞬态温度场计算的影响。研究表明;网格间距对计算有明显的影响。随着网格间距的增大,燃烧期间活塞表面温度沿径向分布畸变现象随之增加。文中还讨论了轴向和径向网格间距比dx/dR对活塞瞬态温度场计算的影响。
This paper deals with the influence of the meshes of the finite element method on the computational analysis of the two-dimension piston unsteady temperature field. The research shows that the mesh distance has great influence on the computational analysis. As the mesh distance increases, the radial missdistribution of piston crown temperature increases. The paper also discusses the influence of ratio of axial and radial mesh distance, i. e. dx/dR, on the computational analysis of the unsteady two-di mension piston temperature field.
