• Bluff body flow simulation usi...

Treffer: Bluff body flow simulation using lattice Boltzmann equation with multiple relaxation time

Title:
Bluff body flow simulation using lattice Boltzmann equation with multiple relaxation time
Authors:
LIU, Y, SO, R. M. C, CUI, Z. X
Source:
Proceedings of the First International Conference for Mesoscopic Methods in Engineering and Science (ICMMES), Braunschweig, Germany, July 25-30, 2004Computers & fluids. 35(8-9):951-956
Publisher Information:
Oxford: Elsevier Science, 2006.
Publication Year:
2006
Physical Description:
print, 20 ref
Original Material:
INIST-CNRS
Subject Terms:
Mechanics acoustics, Mécanique et acoustique, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Domaines classiques de la physique (y compris les applications), Fundamental areas of phenomenology (including applications), Mécanique des fluides, Fluid dynamics, Méthodes de calcul en mécanique des fluides, Computational methods in fluid dynamics, Ecoulements turbulents, convection et transfert de chaleur, Turbulent flows, convection, and heat transfer, Sillages, Wakes, Ecoulement rotationnel et vorticité, Rotational flow and vorticity, Ecoulements décollés, Separated flows, Jets, Condition aux limites, Boundary conditions, Corps arête vive, Bluff body, Cuerpo arista viva, Cylindre circulaire, Circular cylinder, Cilindro circular, Détachement tourbillonnaire, Vortex shedding, Desprendimiento vorticial, Ecoulement croisé, Crossflow, Flujo cruzado, Ecoulement tourbillonnaire, Vortex flow, Ecoulement tridimensionnel, Three dimensional flow, Flujo tridimensional, Equation Boltzmann, Boltzmann equation, Génération maille, Mesh generation, Modèle réticulaire, Lattice model, Modelo reticular, Modélisation, Modelling, Méthode volume fini, Finite volume methods, Sillage, Wakes, Simulation numérique, Digital simulation, Système mésoscopique, Mesoscopic systems
Document Type:
Konferenz Conference Paper
File Description:
text
Language:
English
Author Affiliations:
Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong-Kong
ISSN:
0045-7930
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=17868491
Rights:
Copyright 2006 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Physics: fluid mechanics
Accession Number:
edscal.17868491
Database:
PASCAL Archive

Weitere Informationen

Numerical simulations using multiple-relaxation-time lattice Boltzmann model (MRT-LBM) are carried out for a long slender rigid circular cylinder in a cross flow to examine three-dimensional wake effect on the flow-induced forces. A mesh refinement technique is applied in the MRT-LBM calculation. The aim is to assess the validity and efficiency of the MRT-LBM model in three-dimensional calculation. In order to simulate the practical situation correctly, wall boundary conditions are specified at both ends of the cylinder. The aspect ratio of the slender cylinder is 16. The calculation is compared with results obtained from a finite volume method (FVM) and a lattice BGK model [Bhatnagar PL, Gross EP, Krook M. A model for collision processes in gases. 1. Small amplitude processes in charged and neutral one-component systems. Phys Rev 1954;94: 511-25] with refined grid. Good agreement is obtained. It is found that the MRT-LBM is more efficient and faster in three-dimensional calculations.