Overset Grid Applications in Hypersonic Flow Using the DPLR Flow Solver

2008 ◽  
Author(s):  
David Boger ◽  
Ralph Noack ◽  
Adam Amar ◽  
Benjamin Kirk ◽  
Randolph Lillard ◽  
...  
Keyword(s):  
Hypersonic Flow ◽  
Overset Grid ◽  
Flow Solver ◽  
Grid Applications

A Spectrally Accurate 2-D Axisymmetric Photon Monte-Carlo RTE Solver for Hypersonic Entry Flows

2009 ◽  
Author(s):  
Andrew Feldick ◽  
Josh Giegel ◽  
Michael F. Modest
Keyword(s):  
Monte Carlo ◽  
Radiative Transfer ◽  
Ray Tracing ◽  
Hypersonic Flow ◽  
Finite Volume ◽  
Spectral Properties ◽  
Computational Time ◽  
Two Dimensional ◽  
Flow Solver

A two-dimensional axisymmetric ray tracing photon Monte Carlo radiative transfer solver is developed. Like all ray tracing Monte Carlo codes, the ray tracing is performed in 3-D, however, arrangements are made to take advantage of the 2-D nature of the problem, to minimize computational time. The solver is designed to be integrated into finite volume hypersonic flow solvers, and is able to resolve the complex spectral properties of such flows to line-by-line accuracy. The solver is then directly integrated into DPLR, a hypersonic flow solver, and closely coupled calculations are performed.

A multigrid overset grid flow solver with implicit hole cutting method

2007 ◽  
Vol 196 (9-12) ◽  
pp. 1701-1715 ◽  
Author(s):  
Wei Liao ◽  
Jinsheng Cai ◽  
Her Mann Tsai
Keyword(s):  
Overset Grid ◽  
Cutting Method ◽  
Flow Solver

Fully-Coupled Simulation of Low Temperature Ablator and Hypersonic Flow Solver

2022 ◽  
Author(s):  
Aleksander L. Zibitsker ◽  
Joel McQuaid ◽  
Christoph Brehm ◽  
Alexandre Martin
Keyword(s):  
Low Temperature ◽  
Hypersonic Flow ◽  
Coupled Simulation ◽  
Flow Solver ◽  
Fully Coupled

scholarly journals Overset Grid Assembler and Flow Solver with Adaptive Spatial Load Balancing

2021 ◽  
Vol 11 (11) ◽  
pp. 5132
Author(s):  
Orxan Shibliyev ◽  
Ibrahim Sezai
Keyword(s):  
Relative Motion ◽  
Load Balance ◽  
Memory Usage ◽  
Overset Grid ◽  
Space Partitioning ◽  
Spatial Partitioning ◽  
Flow Solver ◽  
Flow Problems ◽  
3D Space ◽  
Connectivity Information

An overset mesh approach is useful for unsteady flow problems which involve components moving relative to each other. Since the generation of a single mesh around all components is prone to mesh stretching due to the relative motion of bodies, using the overset grid methodology, an individual mesh can be generated for each component. In this study, a parallel overset grid assembler was developed to establish connectivity across component meshes. Connectivity information was transferred to the developed parallel flow solver. The assembler uses multiple methods such as alternating digital tree and stencil walking to reduce the time spent on domain connectivity. Both the assembler and solver were partitioned spatially so that overlapping mesh blocks reside in the same partitions. Spatial partitioning was performed using a 3D space partitioning structure, namely octree, to which mesh blocks are registered. The octree was refined adaptively until bins of octree could be evenly distributed to processors. The assembler and solver were tested on a generic helicopter configuration in terms of load balance, scalability, and memory usage.

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