3 papers
math.NA2020
Addressing the issue of mass conservation error and the connected problem of Carbuncle formation
Vinnakota Mythreya, K. S. R. Siva Prasad., M. Ramakrishna
We study mass conservation errors (momentum density spike) and the related phenomenon of post shock oscillations in numerical solutions of compressible Euler equations. These pheno…
math.NA2020
Shock capturing with discontinuous Galerkin Method using Overset grids for two-dimensional Euler equations
S R Siva Prasad Kochi, M Ramakrishna
A new procedure to capture the shocks has been proposed and is demonstrated for the solutions of two-dimensional Euler equations using discontinuous Galerkin method and overset gri…
physics.comp-ph2019
Modified symmetry technique for mitigation of flow leak near corners for compressible inviscid fluid flow
Vinnakota Mythreya, M. Ramakrishna
Using the standard symmetry technique for applying boundary conditions for free slip and flat walls with corners will lead to flow leak through the wall near corners (violation of…