TVD格式在一维流动分析计算中的应用研究  

Investigation of TVD Scheme Applied Into One Dimensional Flow Problems

作　　者：刘伟[1] 闫晓[2] 

机构地区：[1]中国核工业集团公司核动力事业部,北京100822 [2]中国核动力研究设计院,成都610041

出　　处：《核动力工程》2016年第2期65-69,共5页Nuclear Power Engineering

摘　　要：总变差消减(TVD)作为一种先进的对流离散格式,具有较好的数值稳定性和计算精度,可有效避免数值振荡和假扩散的发生,特别适合于具有波动特性的瞬态热工过程的分析计算。本文以一维流动为例,基于TVD离散结果开发了计算程序,采用不同的算例对计算程序进行验证,证实了TVD格式的有效性。TVD is a kind of advanced numerical convection discretization scheme, which has good numerical stability and calculation accuracy. It can avoid the numerical oscillation and false diffusion, so it has the potential to be applied in the transient thermal-hydraulic analysis with wave characteristics. In this paper, a program was developed based on the TVD scheme and a one-dimensional problem is used as an example to validate the program with different cases. This paper proves the validity of TVD scheme.

关 键 词：TVD 一维流动 离散格式 

分 类 号：TL333[核科学技术—核技术及应用]