Predictor-Corrector Difference Scheme for Numerical Solution of the Euler and Navier–Stokes Equations

Аннотация

We generalize optimal splitting schemes for numerical solving the Euler and Navier–Stokes equations in the curvilinear coordinates. We introduce a splitting of the equations, common in both divergence and nondivergence forms, that makes it possible to construct a class of economic difference schemes. The schemes are realized at fractional steps by scalar sweeps and have a large steady margin. The proposed algorithm is tested for stationary and nonstationary problems.