CONVECTION TREATMENT AND PRESSURE SPLITTING FOR SEQUENTIAL SOLUTION PROCEDURES .2. PRESSURE-BASED ALGORITHM

In Part II of the present article, the controlled variation scheme (CV S) developed in Part I, and the advection upstream splitting method (A USM) are implemented in a pressure-based algorithm, whose very basis i s the separate treatment of convective and pressure fluxes For the con vective fluxes in the momentum equations as well as the estimation of mass fluxes in the pressure correction equation (which is derived from tire momentum and continuity equations) of the present algorithm, bot h first- and second-order (with minmod limiter) flux estimations are e mployed. Some issues resulting from the conventional use in pressure-b ased methods of a staggered grid, for the location of velocity compone nts and pressure, are also addressed. Using the second-order fluxes, b oth CVS- and AUSM-type schemes exhibit sharp resolution. Overall, the combination of upwinding and splitting for the convective and pressure fluxes separately exhibits robust performance for a variety of flows and is particularly amenable for adoption in pressure-based methods.