Affiliation: | aCollege of Astronautics, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, P.R. China bCollege of Science, Chang An University Xi'an, Shaanxi 710064, P.R. China cSchool of Science, Northwestern Polytechnical University Xi'an, Shaanxi 710072, P.R. China |
Abstract: | In this paper, we present an extended ghost fluid method (GFM) for computations of inviscid compressible multifluids in Lagrangian coordinate. That is, we capture the appropriate interface conditions by defining a fluid that has the velocity and the pressure of the real fluid at each point, but the entropy or the internal energy of some other fluid. Meanwhile, a single-fluid solver, CWENO-type central-upwind scheme, is developed in Lagrangian coordinate. The high resolution and the non-oscillatory quality of the scheme can be verified by solving several numerical experiments. |