内燃机转速对缸内湍流影响之研究

A Study on the Effect of Engine Speed to Turbulent

内燃机缸内湍流流动受诸多因素的影响,影响比较严重的因素之一就是内燃机的转速.本文利用CFD软件K IVA对内燃机缸内湍流进行了三维数值模拟,总结出内燃机缸内流体湍动能受内燃机转速影响的规律.

Gas flows in the cylinder of internal combustion engines are affected by many factors, in which engine speed is one of the most important. This thesis performs a comparative study on three versions of eddy - viscosity models （EVM）, i.e. and concludes the rule that how engine speed affect the turbulent.