The use of moving meshes in gas-dynamical computations☆

A finite-difference method for nonstationary onedimensional problems of gas dynamics was described in [ll, then later extended in [2] to two-dimensional problems, where the example of computing the flow past a sphere with an outgoing shock wave was considered. The method, developed by the present authors, has also been used elsewhere, notably in [3], for computing rotationally symmetric flows with high Mach numbers, involving bell-shaped bodies with varying degrees of bluntness.