Compressible two-phase flow interface condition construction method under curve coordinate system

According to a compressible two-phase flow interface condition construction method under a curve coordinate system, a traditional interface flow numerical simulation technology under a Cartesian coordinate system is popularized, so that the compressible two-phase flow interface condition construction method is suitable for flow field simulation of different fluid interface evolution under a general curve coordinate system. The method comprises the steps that through coordinate transformation, a level set equation representing interface position information and a reinitialization equation are converted into a general curve coordinate system to be solved; a virtual fluid method reflecting a two-phase flow effect is popularized to a general curve coordinate system to define interface conditions. The method has the advantages that the improved level set method under the curve coordinate system is suitable for representing interface dynamic position information under any structure grid; theimproved virtual fluid m