计算物理
計算物理
계산물리
CHINESE JOURNAL OF COMPUTATIONAL PHYSICS
2014年
6期
648-658
,共11页
王建航%陈方%刘洪%王兰%郑忠华
王建航%陳方%劉洪%王蘭%鄭忠華
왕건항%진방%류홍%왕란%정충화
随机投影%爆轰波%刚性反应源项%激波指示器
隨機投影%爆轟波%剛性反應源項%激波指示器
수궤투영%폭굉파%강성반응원항%격파지시기
random projection%detonation%stiff source term%shock indicator
提出一种激波定位随机投影方法,利用当地随机投影,引入激波指示器并提出恰当的判定当地投影区域的规则,使爆轰波多向推进的问题得以解决。数值实验表明,激波定位随机投影方法不仅适用于爆轰波的多向推进,还能高效求解刚性反应方程,易于推广到三维情况。
提齣一種激波定位隨機投影方法,利用噹地隨機投影,引入激波指示器併提齣恰噹的判定噹地投影區域的規則,使爆轟波多嚮推進的問題得以解決。數值實驗錶明,激波定位隨機投影方法不僅適用于爆轟波的多嚮推進,還能高效求解剛性反應方程,易于推廣到三維情況。
제출일충격파정위수궤투영방법,이용당지수궤투영,인입격파지시기병제출흡당적판정당지투영구역적규칙,사폭굉파다향추진적문제득이해결。수치실험표명,격파정위수궤투영방법불부괄용우폭굉파적다향추진,환능고효구해강성반응방정,역우추엄도삼유정황。
A shock-pinned random projection method ( SRPM ) is proposed. To overcome difficulty of multi-directional propagation, local random projection is applied by introducing a shock indicator along with proper rules for choosing local projection zones around shocks in each reaction step. Numerical experiments are presented. It shows that SRPM is appropriate for detonation waves with multi-directional propagation, which is high-efficient in solving stiff reactive equations and extensible to 3D situations.