摘要
进气歧管的设计校验中,稳态计算能够快速模拟各个支管的压力分布情况,但是不能模拟瞬态进气过程和谐振效应带来的进气不均匀性,所以要在1D模型中获得更准确的瞬态边界条件来计算进气歧管的三维流动,或更进一步研究进气歧管结构形状对发动机性能的影响,优化设计。本文以发动机1D燃烧开发软件为基础与3D流体软件相耦合来解决进气歧管设计中瞬态进气过程和谐振效应的模拟。
CFD check of the engine intake manifold design,the steady CFD can simulate per intake manifold runner layout of the pressure,but it can not to simulate the process of inlet flow and can not to simulate the non-uniformity of the inlet flow that arise by resonance effect. So it need to get the more exact transient boundary condition from the 1D modal and to calculate the 3D flow in intake runner. And go a step further to study infection of the engine performance by structure of the intake runner. Final to optimize the intake manifold design. The paper used 1D engine Combustion development software to coupling 3D CFD software to resolve the process of inlet flow.
出处
《装备制造技术》
2015年第6期14-16,共3页
Equipment Manufacturing Technology
关键词
瞬态进气过程
谐振效应
耦合计算
结构优化
transient process of inlet flow
resonance effect
coupling calculate
structure optimization
