Error Analysis of Composite Shock Interaction Problems.

Lee, T. ; Yu, Y. ; Zhao, M. ; Glimm, J. ; Li, X. ; Ye, K.

Technical Information Center Oak Ridge Tennessee

关键词: Shock wave interactions;    Shock waves;    Errors;    Reliability;    Computerized simulation;   

RP-ID  :  DE200415007715

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

We propose statistical models of uncertainty and error in numerical solutions. To represent errors efficiently in shock physics simulations we propose a composition law. The law allows us to estimate errors in the solutions of composite problems in terms of the errors from simpler ones as discussed in a previous paper. In this paper, we conduct a detailed analysis of the errors. One of our goals is to understand the relative magnitude of the input uncertainty vs. the errors created within the numerical solution. In more detail, we wish to understand the contribution of each wave interaction to the errors observed at the end of the simulation.