一种捕捉可压缩流体多重交汇界面的改进型LS方法  

Improved LS Method for Capturing Compressible Fluid with Multi-Interface Interactions

作　　者：柏劲松[1] 陈森华[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《高压物理学报》2003年第4期268-274,共7页Chinese Journal of High Pressure Physics

摘　　要：在普通LevelSet(LS)方法基础上,给出了一种捕捉多重交汇界面的改进型LS方法,该方法能够大大减小多重交汇界面之间因光滑而产生的空穴区域,而不影响多重交汇以外区域的界面位置。同时对改进算法进行了测试,并与可压缩流体耦合,给出了多介质流体多重交汇界面的计算结果。Based on the general LS method, an improved LS method for capturing compressible fluid with multi-interface interactions was given. This method can decrease the void region near the multi-interactions point, but not change the others. Both the LS equations capturing the material interface quality and the Eulerian conservative equations were solved by using a high resolution unsplitting finite volume scheme, and fifth order WENO scheme for re-initialization level set equations. Some examination and application examples in capturing conjunct multi-fluid interfaces cases were simulated.

关 键 词：LEVEL SET方法 界面跟踪 可压缩多介质流 多重交汇界面 欧拉法 相界面运动 

分 类 号：O357.4[理学—流体力学]