A hybrid recursive regularized lattice Boltzmann model with overset grids for rotating geometries
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Published version
OA Location
Author(s)
Yoo, H
Bahlali, ML
Favier, J
Sagaut, P
Type
Journal Article
Abstract
Simulating rotating geometries in fluid flows for industrial applications remains a challenging task for general fluid solvers and in particular for the lattice Boltzmann method (LBM) due to inherent stability and accuracy problems. This work proposes an original method based on the widely used overset grids (or Chimera grids) while being integrated with a recent and optimized LBM collision operator, the hybrid recursive regularized model (HRR). The overset grids are used to actualize the rotating geometries where both the rotating and fixed meshes exist simultaneously. In the rotating mesh, the fictitious forces generated from its non-inertial rotating reference frame are taken into account by using a second order discrete forcing term. The fixed and rotating grids communicate with each other through the interpolation of the macroscopic variables. Meanwhile, the HRR collision model is selected to enhance the stability and accuracy properties of the LBM simulations by filtering out redundant higher order non-equilibrium tensors. The robustness of the overset HRR algorithm is assessed on different configurations, undergoing mid-to-high Reynolds number flows, and the method successfully demonstrates its robustness while exhibiting the second order accuracy.
Date Issued
2021-05-01
Date Acceptance
2021-04-24
Citation
Physics of Fluids, 2021, 33 (5), pp.1-19
ISSN
1070-6631
Publisher
American Institute of Physics
Start Page
1
End Page
19
Journal / Book Title
Physics of Fluids
Volume
33
Issue
5
Copyright Statement
© 2021 The Author(s). Published under an exclusive license by AIP Publishing
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000677503600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Physical Sciences
Mechanics
Physics, Fluids & Plasmas
Physics
LARGE-EDDY SIMULATION
FLUID-STRUCTURE INTERACTIONS
IMMERSED BOUNDARY METHOD
ERROR ANALYSIS
FLOW
EQUATION
INTERPOLATION
FIELD
Publication Status
Published
Article Number
ARTN 057113
Date Publish Online
2021-05-18