摘要
利用CFD软件建立了某增压柴油机EGR系统中所需的文丘里管模型,通过模拟不同尺寸的文丘里管分析了各种情况下的压降及均匀性。研究结果表明:采用总长为300mm,直径为22mm,18°压缩角和12°扩压角的文丘里管能够满足该增压柴油机压降及均匀性的要求。
A venture tube model which needed in Exhaust Gas Recirculation（EGR） system of turbocharger diesel is built by Computational Fluid Dynamics（CFD） software.Pressure drop and uniformity in any cases are analyzed by simulating different size venture tubes.The results show that the venture tube,which has 300mm overall length,22mm diameter,18° compression angle,and 12° diffusion angle,can meet the requirements of pressure drop and uniformity for turbocharger diesel.
出处
《能源研究与管理》
2010年第3期46-49,共4页
Energy Research and Management
关键词
文丘里管
柴油机
EGR
venture tube
diesel
exhaust gas recirculation（EGR）
