Zobrazeno 1 - 10
of 906
pro vyhledávání: '"Ramakrishna, M"'
Autor:
Kochi, S R Siva Prasad, Ramakrishna, M
In this paper, eight different troubled cell indicators (shock detectors) are reviewed for the solution of nonlinear hyperbolic conservation laws using discontinuous Galerkin (DG) method and a WENO limiter on both structured and unstructured meshes.
Externí odkaz:
http://arxiv.org/abs/2309.11973
Autor:
Kochi, S R Siva Prasad, Ramakrishna, M
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 the corresponding flow field and the shape of the body producing the
Externí odkaz:
http://arxiv.org/abs/2307.16407
Autor:
Kochi, S R Siva Prasad, Ramakrishna, M
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 proposed in Siva Prasad Kochi et al. using overset grids to capture th
Externí odkaz:
http://arxiv.org/abs/2301.04309
Autor:
Kochi, S R Siva Prasad, Ramakrishna, M
A new scheme for communication between overset grids using subcells and Weighted Essentially Non Oscillatory (WENO) reconstruction for two-dimensional problems has been proposed. The effectiveness of this procedure is demonstrated using the discontin
Externí odkaz:
http://arxiv.org/abs/2106.06285
Autor:
Kochi, S R Siva Prasad, Ramakrishna, M
In this paper, we generalize the compact subcell weighted essentially non oscillatory (CSWENO) limiting strategy for Runge-Kutta discontinuous Galerkin method developed recently by us in 2021 for structured meshes to unstructured triangular meshes. T
Externí odkaz:
http://arxiv.org/abs/2106.06280
Autor:
Dora, T. Rajesh Kumar, Sasank, Satya, Kiran, P. Prem, Kumar, Punit, Mishra, Sushil, Suman, Ravi Shankar, Ramakrishna, M., Gollapudi, Srikant
Publikováno v:
In Materials Characterization March 2024 209
In this paper, we propose a computationally efficient iterative algorithm for proper orthogonal decomposition (POD) using random sampling based techniques. In this algorithm, additional rows and columns are sampled and a merging technique is used to
Externí odkaz:
http://arxiv.org/abs/2011.06193
We study mass conservation errors (momentum density spike) and the related phenomenon of post shock oscillations in numerical solutions of compressible Euler equations. These phenomena and their causes have been reported in literature [34, 1]. In thi
Externí odkaz:
http://arxiv.org/abs/2005.06399
Autor:
Kochi, S R Siva Prasad, Ramakrishna, M
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 grids. A discontinuous Galerkin solver using a coarse grid provides the t
Externí odkaz:
http://arxiv.org/abs/2003.01378
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