论文部分内容阅读
阐述了用分形耦合贴体网格坐标和流体有限控制容积法，求解具有多分支、变曲率和变截面的复杂几何形状和边界条件的柴油机模件式脉冲转换系统中的非定常粘性可压三维流动计算问题，编制了计算程序进行计算．计算结果表明，这种计算方法对柴油机模件式脉冲转换系统的流动计算是相当有效的．其计算程序不仅可用于柴油机模件式脉冲转换系统，亦可用于脉冲系统和定压系统的流动计算，具有一定的通用性．
In this paper, the fractal coupling fitted grid coordinates and the fluid limited volume control method are introduced to solve the unsteady viscous three-dimensional (3D) impulsive three-dimensional model of a diesel engine pulse train with complicated geometry and boundary conditions with multiple branches, Flow calculation problems, the preparation of a calculation program to calculate. The calculation results show that this method is quite effective for the flow calculation of diesel engine modular pulse conversion system. The calculation program can be used not only for diesel engine modular pulse conversion system, but also for the flow calculation of pulse system and constant pressure system, and has certain versatility.