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HyperMesh의 MeshControls기능을활용한 CFD 모델링방법소개
Business Development Dept.
Dong-Hwan Kim
2017
HyperMesh for CFD
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Contents
• HyperMesh 소개
• 기존 CFD meshing 기능리뷰
• MeshControls of HyperMesh
• MeshControls?
• MeshControls기능
• Demonstration
• Using MeshControls for CFD meshing
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
HyperMesh 소개
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
HyperMesh 소개
• 솔버중립적인고성능유한요소전-처리기• 수준높은유한요소모델링
• 상용 CAD와 CAE와의폭넓은호환성
• 강력한 CAD 클린업및 Meshing 툴
• Customizing 가능CAD Import
& Cleanup
FE Mesh
Boundary
Setup
Easy, Open Surface Mesh Solid Mesh
Morphing Bach Mesh CAD/CAE Interfaces
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
HyperMesh 소개
• Capabilities
※ Solver에 알맞은 환경을 제공
CAD
CAE
Custom
• CATIA, CREO, NX UG,
• ACIS, IGES, PARASOLID, STEP, JT…
• OptiStruct, RADIOSS, MotionSolve, AcuSolve, Feko, Flux …
• LS-DYNA, ABAQUS, NASTRAN, ANSYS …
• MOLDFLOW, FLUENT, Star-CD
• MARC, PERMAS, MADYMO, PAMCRASH…
• User-defined Interface
• Scripting
• Results Math
HyperMesh
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
HyperMesh 소개
• Geometry
Solid Split
Geometry CleanUp
Mid-Surface
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
HyperMesh 소개
• Meshing
Shell Mesh Tetra Mesh Hexa Mesh
CFD Mesh Connection Quality
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
HyperMesh 소개
• Customization
모델링 시간 단축
Open API을 이용하여 Customizing 가능
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Surface meshing
• Using Automesh panel
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Surface meshing
• Using Automesh panel
Size and bias Surface deviation
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• CFD Tetramesh panel
• Fills an enclosed volume with tetrahedral elements and boundary layer
• Enclosed volume defined as being entirely bounded by a shell mesh (tria and/or quad)
• Hexahedral, wedge and pyramid elements are also created when a boundary layer mesh is generated
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• CFD Tetramesh panel workflow:
• Define components containing surface elements
• Define layer information, thickness, and growth rate of boundary layer
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• CFD Tetramesh panel workflow:
• Define tetramesh algorithm and max element size
• Define the size of the refinement box and element size associated with it
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• CFD Tetramesh panel workflow:
Standard Aggressive Gradual Interpolate Octree based
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• Fixed and Float
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• Fixed and Float
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• Remesh or Morph
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• BL option
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기존 CFD meshing 기능리뷰
• Volume meshing
• Demonstration
• Surface meshing
• inlet & outlet
• Volume meshing
• BL parameters
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls of HyperMesh
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls?
• Main concept
• Meshing process automation
• Different meshing technologies in one browser
• Easy to replicate the process on design change
• One-click meshing
• Capabilities
• Mesh settings are entities stored in the database
• Can reuse mesh settings via .xml import/export
• Model, Local, Feature and Refinement Controls
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls?
• Process automation
• Export mesh controls to .xml
• Import same mesh controls into a different model
• Select entities
• Manual selection
• Mesh or Reject
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls?
• Model Controls
• At least one instance is required for meshing
• Multiple instances can be defined
• Only one will be allowed to be active
• The remainder are inactive but saved in the database.
• Local Controls
• Capability to define specific mesh settings locally
• Local settings takes precedence over model mesh controls
• User can define all settings at a time and perform meshing in one step.
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls 기능
• BatchMesher
• Useful for generating a mesh on a small number of parts
• Runs BatchMesher on selected entities:
• Mid-surface generation
• Geometry cleanup
• Optimized mesh generation and cleanup
• Adaptive Wrapper
• Quick Solution for models with:
• Lots of self intersection
• Undesired gaps and holes
• Difficult to fix it manually
• Functionalities:
• User defined features will be preserved
• Automated hole – gap patcher
• Proximity and Refinement Controls
• Leak Detection
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls 기능
• Region
• Regions can be assigned to mesh controls
• Manual entity selection
• From Feature Selection
• Based on metadata rules
• Refinement Zone
• Shape based refinement
• Box, Cone, Cylinder,Ellipsoid, Frustun, Sphere
• Can be applied to:
• Wrapper, Volume mesher
• 2D mesher
• Surface deviation (surfaces/elements)
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls 기능
• Surface Mesh
• Surface meshing by meshing parameter
• Size and Bias, QI Optimize, Edge Deviation,Surface Deviation, Rigid Body Mesh
• Refinement automation
• Geometric based refinement
• Proximity based refinement
• Angle based refinement
• Automated feature-based meshing
• Fillet, Cylinder, Washer, Imprint Circle, Etc…
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
MeshControls 기능
• Volume mesh
• Volume meshing by meshing parameter
• Boundary layer meshing
• Tetra volume meshing
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Demonstration
Using MeshControls for CFD meshing
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
Demonstration
• Using MeshControls for CFD meshing
© 2017 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
기술지원안내
• 기술지원연락처• 이메일: [email protected]
• 알테어블로그• http://blog.altair.co.kr/
• 정규교육과정
• 웨비나과정
• 교육자료다운로드
• 알테어제품군최신기술정보
• 알테어하이퍼웍스홈페이지• http://www.altairhyperworks.co.kr/
• 소프트웨어다운로드
• 문서자료
© 2016 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.
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