HyperMesh for CFDblog.altair.co.kr/wp-content/uploads/2017/10... · 2017-10-30 · 기존CFD meshing 기능리뷰 •Volume meshing •CFD Tetramesh panel • Fills an enclosed volume

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


HyperMesh 소개


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


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


HyperMesh 소개

• Geometry

Solid Split

Geometry CleanUp

Mid-Surface


HyperMesh 소개

• Meshing

Shell Mesh Tetra Mesh Hexa Mesh

CFD Mesh Connection Quality


HyperMesh 소개

• Customization

모델링 시간 단축

Open API을 이용하여 Customizing 가능


기존 CFD meshing 기능리뷰



• Surface meshing

• Using Automesh panel



• Surface meshing

• Using Automesh panel

Size and bias Surface deviation



• 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



• Volume meshing

• CFD Tetramesh panel workflow:

• Define components containing surface elements

• Define layer information, thickness, and growth rate of boundary layer



• Volume meshing


• Define tetramesh algorithm and max element size

• Define the size of the refinement box and element size associated with it



• Volume meshing


Standard Aggressive Gradual Interpolate Octree based



• Volume meshing

• Fixed and Float



• Volume meshing

• Fixed and Float



• Volume meshing

• Remesh or Morph



• Volume meshing

• BL option



• Volume meshing

• Demonstration

• Surface meshing

• inlet & outlet

• Volume meshing

• BL parameters


MeshControls of HyperMesh


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


MeshControls?

• Process automation

• Export mesh controls to .xml

• Import same mesh controls into a different model

• Select entities

• Manual selection

• Mesh or Reject


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.


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


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)


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…


MeshControls 기능

• Volume mesh

• Volume meshing by meshing parameter

• Boundary layer meshing

• Tetra volume meshing


Demonstration

Using MeshControls for CFD meshing


Demonstration

• Using MeshControls for CFD meshing


기술지원안내

• 기술지원연락처• 이메일: [email protected]

• 알테어블로그• http://blog.altair.co.kr/

• 정규교육과정

• 웨비나과정

• 교육자료다운로드

• 알테어제품군최신기술정보

• 알테어하이퍼웍스홈페이지• http://www.altairhyperworks.co.kr/

• 소프트웨어다운로드

• 문서자료

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Documents

HyperMesh for CFDblog.altair.co.kr/wp-content/uploads/2017/10... · 2017-10-30 · 기존CFD meshing 기능리뷰 •Volume meshing •CFD Tetramesh panel • Fills an enclosed volume