对KIVA程序中粒子跟踪数学模型的修正  

Correction to Mathematical Model of Particle Tracking in KIVA Code

作　　者：贺萍[1] 刘永长[1] 宋军[1] 汪海清 

机构地区：[1]华中理工大学

出　　处：《内燃机学报》1997年第2期159-165,共7页Transactions of Csice

摘　　要：在应用中发现ＫＩＶＡ、ＫＩＶＡ－Ⅱ程序中的粒子跟踪数学模型存在错误，该错误将导致在某些情况下较大的绝对误差，甚至预测完全失真的结果。本文分析了原模型产生错误的原因，并进行了修正。计算表明修正后的模型彻底根除了原模型的错误对预测结果的影响。The application of KIVA and KIVA Ⅱ codes shows that there is a mistake in the mathematic model of particle tracking, which may lead to great absolute error and even complete distortion of the prediction results. In the paper, the causes of the mistake of the original model is analyzed and modification of particle tracking model is made. The calculation results show that the modified model eliminates thoroughly the effect of the mistake in the original model on the prediction.

关 键 词：离散液滴模型 粒子 跟踪 内燃机 数学模型 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]