NDLI: Adaptive boundary layer meshing for viscous flow simulations

Content Provider	Springer Nature Link
Author	Sahni, Onkar Jansen, Kenneth E. Shephard, Mark S. Taylor, Charles A. Beall, Mark W.
Copyright Year	2008
Abstract	A procedure for anisotropic mesh adaptation accounting for mixed element types and boundary layer meshes is presented. The method allows to automatically construct meshes on domains of interest to accurately and efficiently compute key flow quantities, especially near wall quantities like wall shear stress. The new adaptive approach uses local mesh modification procedures in a manner that maintains layered and graded elements near the walls, which are popularly known as boundary layer or semi-structured meshes, with highly anisotropic elements of mixed topologies. The technique developed is well suited for viscous flow applications where exact knowledge of the mesh resolution over the computational domain required to accurately resolve flow features of interest is unknown a priori. We apply the method to two types of problem cases; the first type, which lies in the field of hemodynamics, involves pulsatile flow in blood vessels including a porcine aorta case with a stenosis bypassed by a graft whereas the other involves high-speed flow through a double throat nozzle encountered in the field of aerodynamics.
Starting Page	267
Ending Page	285
Page Count	19
File Format	PDF
ISSN	01770667
Journal	Engineering with Computers
Volume Number	24
Issue Number	3
e-ISSN	14355663
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-04-25
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Boundary layer meshes Computational fluid dynamics Mesh adaptation Mixed/hybrid meshes Viscous flow simulations ApplicationMathematics/Computational Methods of Engineering Mechanics Calculus of Variations and Optimal Control; Optimization Systems Theory, Control Math. Applications in Chemistry Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Engineering Computer Science Applications Modeling and Simulation Software

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