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Introduction to ANSYS Meshing (Global Mesh Controls)

Introduction to ANSYS Meshing (Global Mesh Controls)

Introduction

Background

This workshop will demonstrate the use of global controls for mesh sizing and inflation. This workshop will use a CAD file imported directly into the Meshing Application.

Objectives

  • Starting ANSYS Meshing
  • Generating a mesh
  • Using Advanced Size Functions

– Curvature

– Proximity

  • Inflation

Planning

  • This CAD file contains a single body streamlined main landing gear geometry.

– Symmetry is assumed.

  • The arrangement of the geometry and presence of complex curved surfaces would make decomposition into hex sweepable volumes impractical.
  • The Tetrahedrons Method combined with Advanced Size Functions to capture curvature would be a good candidate for this application.
  • Since the CAD is of a good quality the Patch Conforming Algorithm will be used.
  • Inflation will be used as the mesh is intended for an external aerodynamic analysis where boundary layer resolution will be required.

View Mesh

View Mesh Interior

  • The mesh is now ready to be transferred to the solver.
  • This completes the workshop.
  • Note that for training purposes the bounding box for this geometry is relatively small. In reality, particularly for aerodynamic simulations, the boundaries (inlet, outlet & side-walls) would be further away as dictated, for example, by wind tunnel dimensions.

       

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