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Free Meshing vs Mapped Meshing

Free Meshing vs Mapped Meshing. The Debate Continues…. Free Meshing. ANSYS has a free meshing routine and its easy to use Will it give good results when compared with mapped meshing?. Free Meshing. Create the Geometry. Free Meshing. Create the Geometry. Define the Mesh Size

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Free Meshing vs Mapped Meshing

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  1. Free Meshing vs Mapped Meshing The Debate Continues…

  2. Free Meshing • ANSYS has a free meshing routine and its easy to use • Will it give good results when compared with mapped meshing?

  3. Free Meshing • Create the Geometry

  4. Free Meshing • Create the Geometry • Define the Mesh Size >Preprocessor >Meshing>Size Controls>Manual Size>Global>Size

  5. Free Meshing • Create the Geometry • Define Mesh Size >Preprocessor >Meshing>Size Controls>Smart Size>Basic

  6. Free Meshing • Create the Geometry • Define Mesh Size • Free Mesh >Meshing>Mesh> Areas>Free>Select the Area to Mesh

  7. Free Meshing • Good- -easy to create the geometry -meshing is fast • Bad- -some triangular elements are used -some elements may have poor aspect ratios

  8. Mapped Meshing • Create the Geometry -create the geometry in smaller sub areas using key points and lines

  9. Mapped Meshing • Create the Geometry • Concatenate Lines -sub areas must be bounded by 3 or 4 lines -concatenate lines around areas until each sub area has no more than 4 boundary lines

  10. Mapped Meshing • Create the Geometry • Concatenate Lines • Mesh each area separately Meshing>Mesh> Areas>Mapped>3 or 4 sided

  11. Mapped Meshing • Create the Geometry • Concatenate Lines • Mesh each area separately • Optional: Check Mesh -Meshing>Check Mesh>Individual Elm>Plot Warning/Error Elements

  12. Mapped Meshing • Good -Lots of control over meshing and elements • Bad -takes a lot more time to create the geometry

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