双重加权实质无波动激波捕捉格式  

Double weighted essentially non-oscillatory shock-capturing schemes

作　　者：宗文刚[1] 邓小刚[1] 张涵信[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《空气动力学学报》2003年第2期218-225,共8页Acta Aerodynamica Sinica

摘　　要：本文构造了一种新的加权激波捕捉格式,命名为双重加权实质无波动(DoubleWeightedEssentiallyNon-Oscillatory,简称DWENO)格式。DWENO格式不需要引进最优权值,并且可以递推地达到任意高阶精度。文中给出了典型算例的计算结果,这些结果表明DWENO格式具有高于WENO格式的间断分辨率。In this paper, we construct a new class of weighted shockcapturing schemes, which are named as DWENO(Double Weighted Essentially nonOscillatory) schemes. DWENO schemes do not introduce any optimal weights and can be extended to arbitrary order easily. Numerical experiments confirm they have higher accuracy and better shock resolution than WENO schemes. 

关 键 词：双重加权实质无波动激波捕捉格式 WENO格式 高阶精度 DWENO格式 光滑流场 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]