AM-Intro 13.0 L02 Meshing Methods - baixardoc
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Customer Training Material L t 2 Lecture 2 Meshing Methods Introduction to ANSYS Introduction to ANSYS Meshing L2-1 ANSYS, Inc. Proprietary © 2011 ANSYS, Inc. All rights reserved. Release 13.0 February 2011
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Transcript of AM-Intro 13.0 L02 Meshing Methods - baixardoc
Customer Training Material
L t 2Lecture 2
Meshing Methodsg
Introduction to ANSYSIntroduction to ANSYS Meshing
L2-1ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
Introduction to ANSYS Meshing
Customer Training MaterialMeshing Methods
What you will learn from this presentation
Automatic Meshing
Algorithms for Tetrahedral Meshing
Different methods for Hex MeshingDifferent methods for Hex Meshing
CutCell meshing
Meshing for 2D and shell analysisg y
New Features:
� Direct Meshing
P t i ti i ANSYS M hi� Parameterization in ANSYS Meshing
� Extended Meshing
L2-2ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
Introduction to ANSYS Meshing
Customer Training MaterialPreprocessing Workflow
Geometry Creation
OR Geometry Import
Geometry Operations
Meshing Solver
Sketches and
Planes3D Operations
Meshing
Methodsa es
3D Operations
Extrude, Revolve,
Sweep etc
Boolean, Body
Operations, Split,
etc
Hybrid Mesh: Tet,
Prisms, Pyramids
Hexa Dominant,
Sweep meshing
Geometry Import
Options
Geometry
Cleanup and
Repair
Automatic
Cleanup
Sweep, etc Sweep meshing
Global Mesh
CutCell meshing
Direct CAD/Bi-
Directional CAD
Cleanup
Merge, Connect,
Projection, Flow
Volume
Extraction, etc
Settings
Local Mesh
Settings
Sizing,
L2-3ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
g
Body/Sphere of
Influence, Match
Control, etc
Introduction to ANSYS Meshing
Customer Training MaterialMeshing Process in ANSYS Meshing
L2-4ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
Introduction to ANSYS Meshing
Customer Training MaterialMeshing Methods
� Meshing Methods available for 3D bodies
– Automatic
– Tetrahedrons
� Patch Conforming
� Patch Independent
– MultiZone
� Mainly hexahedral elements
– Hex dominant
– Sweep
– CutCell
� Meshing Methods available for 2D bodies
A t ti M th d (Q d D i t)– Automatic Method (Quad Dominant)
– Triangles
– Uniform Quad/Tri
U if Q d
Triangle (Tri) Quadrilateral (Quad)
L2-5ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
– Uniform Quad
Introduction to ANSYS Meshing
Customer Training Material
Automatic Meshing Methodg
L2-6ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
Introduction to ANSYS Meshing
Customer Training MaterialAutomatic Meshing Method
� The Automatic setting toggles between Tetrahedral (Patch Conforming)
and Swept Meshing, depending upon whether the body is sweepable.
Bodies in the same part will have a conformal mesh
Patch Conforming Mesh
S ept Meshing
L2-7ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
Swept Meshing
Introduction to ANSYS Meshing
Customer Training Material
Tetrahedron/hybrid Meshingy g
L2-8ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
Introduction to ANSYS Meshing
Customer Training MaterialMeshing Methods: Tetrahedron
� Generates tetrahedral elements
� Two algorithms are available:
– Patch Conforming (TGrid)g ( )
– Patch Independent (ICEM CFD)
Patch Conforming Mesh Patch Independent Mesh
L2-9ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
Patch Conforming Mesh Patch Independent Mesh
Introduction to ANSYS Meshing
Customer Training MaterialTetrahedron Meshing Algorithms
� Patch Conforming:
– Bottom up approach : Meshing process starts from edge, face and then body
– All faces and their boundaries are respected and meshed
– Good for clean CAD geometries
� Patch Independent:
– Top down approach : The volume mesh is generated first, and this is projected p pp g , p j
on to faces and edges to create the surface mesh
– The faces and their boundaries (edges and vertices) are not necessarily
respected if they fall under a specified tolerance, unless, there is a named
l ti l d b d diti th bj t d t thselection, load, boundary condition or other object scoped to them
– Good for gross de-featuring of dirty CAD geometries
� Both tetrahedron meshing algorithms can be applied to the parts, bodies
d ltib d t N i AM 13 0!N i AM 13 0!and multibody parts New in AM 13.0!New in AM 13.0!
� Both tetrahedron meshing algorithms can be inflated for boundary layer
resolution often required for CFD
L2-10ANSYS, Inc. Proprietary
© 2011 ANSYS, Inc. All rights reserved.
Release 13.0
February 2011
