Highorder extensions of the classical Godunov scheme offer computationally attractive features including inherent conservation, geometric flexibility, and accuracy for solving hyperbolic conservation laws. The Godunov-type methods typically do not rely on staggered grids, and the cellaveraged solution is not assumed to be continuous across the cell (control volume) edges. The discontinuity of t...

The Spalart and Allmaras turbulence model has been implemented in a numerical code to study the compressible turbulent flows, which the system of governing equations is solved with a finite volume approach using a structured grid. The AUSM scheme is used to calculate the inviscid fluxes. Different benchmark problems have been computed to validate the implementation and numerical results are sho...

in this work, a direct design approach for designing a surface shape (inverse design problem) has been developed, in which both the target surface pressure and the unknown nodal coordinates appear explicitly in the formulations. the final discretized form of the governing equations (unified formulation) can be used for both analysis and shape design problems. in this work, shape design problems...

Abstract A fully conservative overset mesh method is proposed and applied to overcome the metric singularity at symmetry line for blunt bodies, e.g., capsules blunted cones, in general curvilinear coordinates. The placed automatically by avoiding collapse of grid lines using a hexahedral structure contrast prismatic body-orientated mesh. In addition, points coincide with those avoid interpolati...

A vacuum supersonic ejector is an indispensable pneumatic device placed in nearly all industrial production lines. This device, also called a zero-secondary flow ejector, characterized by the maximum entrained and minimum secondary pressure. Numerical simulations were carried out means of CFD toolbox OpenFOAM v8 its solver HiSA, which uses AUSM+up upwind scheme. single-factor analysis eight par...

A strategy for scale-resolving simulations of bi-species turbulent flows is presented. It relies on a combination Zonal Detached Eddy Simulation (ZDES) and an original low-dissipative version the AUSM scheme that adapts its dissipation to capture flow discontinuities while ensuring low numerical level in resolved turbulence regions. The corresponding discretized equations are thoroughly detaile...