In this paper , we developed a new kind of interface capturing method which use the level set equation to keep track of the interface location as the zero level and use the ghost fluid method to propagate the contact interface disturbed by r - m instability or r - t instability 由于該類(lèi)方法是以數(shù)學(xué)方程的物理解的性質(zhì)為基礎(chǔ),通過(guò)設(shè)置一個(gè)距離函數(shù)( levelset函數(shù))來(lái)標(biāo)志界面所在的位置,從而能夠夠精確地捕捉到界面的發(fā)展,而不會(huì)出現(xiàn)非物理解的現(xiàn)象。