Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
TsAGI Science Journal

ISSN Печать: 1948-2590
ISSN Онлайн: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v40.i6.60
pages 695-718

PECULIARITIES OF DGM APPLICATION FOR SOLUTION OF 3D EULER AND NAVIER-STOKES EQUATIONS ON UNSTRUCTURED HEXAHEDRAL GRIDS

Andrey Viktorovich Wolkov
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation

Краткое описание

A discontinuous Galerkin method (DGM) reported earlier in Refs. [1-3] has been developed for 3D Euler and Navier–Stokes equations on unstructured hexahedral grids. The algorithm enables calculations up to the fourth order and consideration of the curvature of the boundary. An ambitious approach combining the p-multigrid method and the conventional agglomeration h-multigrid method is applied as the convergence acceleration method. A variety of test cases is applied to validate the order of accuracy and to evaluate memory and central processing unit (CPU) requirements. Test cases shown in this paper cover the inviscid flow around a cylinder, the laminar flat plate, 3D flow in a bend duct, 3D turbulent flow over an isolated wing, as well as an aero-acoustic test case for the linearized Euler equations for propagation of a 3D acoustic wave. Results of calculations and CPU requirements are compared with the results obtained through the finite volume method.


Articles with similar content:

ANALYSIS OF THE TAYLOR VORTEX FLOW
ICHMT DIGITAL LIBRARY ONLINE, Vol.5, 1997, issue
Tadashi Hodohara, Mutsuto Kawahara, Junichi Matsumoto
A Two-Dimensional Numerical Method for Incompressible Flow Problem Based on SIMPLER Algorithm and Quadtree Grid with Collocated Arrangement
International Heat Transfer Conference 15, Vol.10, 2014, issue
Wei You, Zeng-Yao Li, Wen-Quan Tao
TEST-CASE NO 12: FILLING OF A CUBIC MOULD BY A VISCOUS JET (PN, PE)
Multiphase Science and Technology, Vol.16, 2004, issue 1-3
Stephane Vincent, Jean-Paul Caltagirone, Olivier Lebaigue
SIMULATION OF MICROFLOWS USING THE LATTICE BOLTZMANN METHOD ON NONUNIFORM MESHES
Nanoscience and Technology: An International Journal, Vol.3, 2012, issue 1
Sina Niazi, Ahmad Reza Rahmati
NEW APPLICATIONS OF CONFORMAL MAPPING TO THE UNSTEADY HEAT CONDUCTION PROBLEM
International Heat Transfer Conference 8, Vol.2, 1986, issue
P. Braun-Angott