High-resolution difference schemes of flux calculation and their application for solution of gas dynamics problems

Formulation and implementation of high-resolution difference schemes of flux calculation and some related problems, in particular, methods of solution of the Riemann problem are considered. The structure of some difference schemes is discussed; an approach for representation of difference schemes of flux calculation on unstructured grids in generalized form using a diagram of normalized variables is proposed. A comparison of properties of difference schemes is given by examples of solving some model gas dynamics problems.