Results 131 to 140 of about 3,519,058 (177)

An efficient grid assembling method in unsteady dynamic motion simulation using overset grid

Aerospace Science and Technology, 2021
Abstract The overset grid method may be a competitive choice of structured grid to discretize the progressively complicated aerodynamic shapes. Grid assembling process is a unique process for the overset grid method, which should be done repeatedly followed by any occurrence of grid motion in unsteady dynamic motion simulation.
Zhenghong Gao, Shusheng Chen
exaly   +2 more sources

On parallel implementations of dynamic overset grid methods

Proceedings of the 1997 ACM/IEEE conference on Supercomputing (CDROM) - Supercomputing '97, 1997
This paper explores the parallel performance of structured overset CFD computations for multicomponent bodies in which there is relative motion between component parts. The two processes that dominate the cost of such problems are the flow solution on each component and the inter-grid connectivity solution.
Andrew M. Wissink, Robert L. Meakin
openaire   +3 more sources

Investigation on the unstructured rotational dynamic overset grids

Aircraft Engineering and Aerospace Technology, 2015
Purpose – The purpose of this paper is to investigate and improve a new method of unstructured rotational dynamic overset grids, which can be used to simulate the unsteady flows around rotational parts of aircraft. Design/methodology/approach – The computational domain is decomposed into two sub-domains, namely, the rotational sub-domain which contains
He-Yong Xu, Zheng-Yin Ye
exaly   +2 more sources

PEGASUS 5: An Automated Preprocessor for Overset-Grid Computational Fluid Dynamics

AIAA Journal, 2003
An all new, automated version of the PEGASUS software has been developed and tested. PEGASUS provides the hole-cutting and connectivity information between overlapping grids and is used as the final part of the grid-generation process for overset-grid computational fluid dynamics approaches.
Stuart E. Rogers, Norman E. Suhs, William E. Dietz   +2 more
core   +3 more sources

Overset grid assembly approach for scalable computational fluid dynamics with body motions

Journal of Computational Physics, 2019
Abstract A methodology for the decomposition of the overset grid assembly problem is presented and evaluated. The method is based on identifying grid subsets of a computational domain for which each domain connectivity is calculated individually, and combined at run time to obtain the final complete solution.
J Ezequiel Martin, Pablo Carrica
exaly   +3 more sources

A multiple instance solver framework based on dynamic overset grid method for flow field simulation of array configuration with moving components

Journal of Computational Physics, 2022
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fuxin Wang, Gaohua Li
exaly   +3 more sources

Numerical simulation of the free-running of a ship using the propeller model and dynamic overset grid method

Ship Technology Research, 2018
An unsteady Reynolds averaged Navier-Stokes (URANS) solver to estimate the trajectory on the free-running condition of a conventional ship is developed.
Takanori Hino, Kunihide Ohashi
exaly   +2 more sources

Dynamic overset grids in OpenFOAM with application to KCS self-propulsion and maneuvering

Ocean Engineering, 2015
An implementation of the dynamic overset grid technique into naoe-FOAM-SJTU solver developed by using the open source code OpenFOAM is presented. OpenFOAM is attractive for ship hydrodynamics applications because of its high quality free surface solver and other capabilities, but it lacks the ability to perform large-amplitude motions needed for ...
Decheng Wan, Zhirong Shen, Pablo Carrica   +2 more
exaly   +2 more sources

Enhancement and Application of Overset Grid Assembly [PDF]

Chinese Journal of Aeronautics, 2010
In this article, the overset grid assembly method is improved to efficiently solve several critical problems that occur when applying overset grids to the complicated geometries and moving body. First, instead of using the two-step searching (i.e.
Chao Yan
exaly   +2 more sources

Parallel Implementation of a Dynamic Overset Unstructured Grid Approach

, 2004
This paper describes the parallelization of a dynamic overset grid approach with predefined holes. The algorithm has been designed for massive parallel applications.
Madrane, A., Raichle, A., Stürmer, A.
openaire   +2 more sources