Numerical Analysis of the Diffusion Process of Intake Mixture in Dual-Intake Valve Engines.
Numerical Analysis of the Diffusion Process of Intake Mixture in Dual-Intake Valve Engines.
复制标题
双进气门发动机进气混合气扩散过程的数值分析。
DOI：
10.1299/kikaib.59.966
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Naofumi Magarida
中科院分区：
文献类型：
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作者：
T. Wakisaka;Y. Isshiki;Y. Shimamoto;Naofumi Magarida
研究了进气混合气（空气和气体燃料的均质混合气）在双进气门S缸内的扩散过程。I.采用GTT和CIP方法及κ-e湍流模型对某型发动机进行了数值分析。发现了以下现象：在一个发动机中，产生了翻滚涡流。混合物主要集中在燃烧室的一半中：即，当燃料仅供应到一个进气口中时，混合物分层。在另一种发动机中，通过保持一个进气门关闭来产生涡流，根据燃料供应的早或晚，在燃烧室中产生相对均匀的混合物或轴向分层的混合物。
The diffusion process of intake mixture (homogeneous mixture of air and gaseous fuel) in the cylinders of dual-intake valve S. I. engines has been analyzed numerically using the GTT and CIP methods and the κ-e turbulence model. The following have been found : In one engine in which a tumbling vortex is generated. the mixture is localized mainly in half of the combustion chamber : namely, it is stratified when the fuel is supplied into only, one intake port. In another engine in which a swirl is generated by holding one intake valve closed, a relatively homogeneous mixture or an axially-stratified mixture is generated in the chamber depending on early or late fuel supply.