25 citations · 26 across the 12 of their papers we have counts for
12 papers
An analytical solution for supersonic flow over a circular cylinder using an optimized shock shape
S R Siva Prasad Kochi, M Ramakrishna
An analytical solution for high supersonic flow over a circular cylinder based on Schneider's inverse method has been presented. In the inverse method, a shock shape is assumed and…
Study of Mach reflection in inviscid flows
S R Siva Prasad Kochi, M Ramakrishna
In this paper, we study the Mach reflection phenomenon in inviscid flows using a higher order discontinuous Galerkin method and overset grids. We use the shock capturing procedure…
A discontinuous Galerkin overset scheme using WENO reconstruction and subcells for two-dimensional problems
S R Siva Prasad Kochi, M Ramakrishna
A new scheme for communication between overset grids using subcells and Weighted Essentially Non Oscillatory (WENO) reconstruction for two-dimensional problems has been proposed. T…
A compact subcell WENO limiting strategy using immediate neighbors for Runge-Kutta discontinuous Galerkin methods for unstructured meshes
S R Siva Prasad Kochi, M Ramakrishna
In this paper, we generalize the compact subcell weighted essentially non oscillatory (CSWENO) limiting strategy for Runge-Kutta discontinuous Galerkin method developed recently by…
Fast and Accurate Proper Orthogonal Decomposition using Efficient Sampling and Iterative Techniques for Singular Value Decomposition
Charumathi V, M. Ramakrishna, Vinita Vasudevan
In this paper, we propose a computationally efficient iterative algorithm for proper orthogonal decomposition (POD) using random sampling based techniques. In this algorithm, addit…
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…