한국전산유체공학회:학술대회논문집
- 2002.10a
- /
- Pages.103-108
- /
- 2002
Analysis of Oscillatory Behaviors in Shock Waves
충격파에서의 물성치 진동현상에 대한 분석
- Published : 2002.10.01
Abstract
The M-AUSMPW+ scheme that can capture shock waves exactly with monotonic characteristics is modifided from AUSMPW+ by analyzing the cause of oscillation in shock regions. Firstly shock-capturing characteristics of general FVS including the AUSM-type schemes are investigated in detail, according to the difference between a cell-interface and a sonic transition position. The cause of oscillation is the improper numerical dissipation that could not represent the real Physics. The M-AUSMPW+ could capture shocks exactly without oscillatory behaviors in considering the sonic transition position and an cell-interface position.
Keywords