摘要
介绍了进排气系统一维非定常流动的 FVM- TVD法 (总残差减少的有限体积法 )。控制方程的离散采用有限体积法 ,数值通量采用考虑截面变化的二阶 TVD格式。用该方法对 MIXPC系统排气管内的压力波进行了模拟 ,并与实测值对比 ,两者吻合较好 。
In this paper,a FVM-TVD method for simulation of one-dimensional unsteady flow in inlet and exhaust manifold of ICE has been constructed.Finite Volume Method is a basic principle to yield the discretised equatin of conservation laws,and a second order TVD scheme including the terms concerning the cross-section variation correctly has been adapted to calculate the numerical flux.The pressure wave before turbine of diesel engine with MIXPC turbo-charging system has been simulated,and compared it with experiment.The result shows that simulation by this method is coincided with experiment result.
出处
《内燃机学报》
EI
CAS
CSCD
北大核心
2001年第2期169-172,共4页
Transactions of Csice
关键词
内燃机
进排气系统
FVM-TVD法
MIXPC turbo-charged system
One dimensional unsteady flow
Finite volume method
Total variation diminishing
