Gambit教育训练-Size Function.ppt

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1、Gambit-IntroductiontosizefunctionGambit定義source及Attachment物件定義Growthrate、Distance及sizelimitTypeofsizefunctionParameterSpecifictotheFunctionFixedStartsizeCurvatureAngleProximityCells/gapMeshed範例一：TheFixedSizeFunctionFixedSizefunction：通常使用於控制最大網格元素邊長進入Gambit選擇

2、求解器（Solver）建立Rectangle建立CircleSubtractSubtractSubtractMove/CopyMove/CopyEdgeMeshFaceMeshFaceMeshFixedSizeFunction(fix1)StartsizeGrowthrateDistanceSizelimitLabel0.21.5100.5fix1FixedSizeFunctionFixedSizeFunction(fix1)FaceMeshDeleteFaceMeshCoarseSizeFunctionFaceM

3、eshFixedsizefunction(fix2)StartsizeGrowthrateDistanceSizelimitLabel0.21.2101fix2FixedSizeFunction(fix2)FaceMesh範例二：TheCurvatureSizeFunctionCurvatureSizefunction：通常使用於控制正向於鄰近網格元素的角度，適用於高曲率的曲面。CurvatureSizeFunctionEllipticalCylinderHeightRadius1Radius2AxisLocati

4、on1025CenteredZEllipticalCylinderVolumeMeshVolumeMeshCurvatureSizeFunctionAngleGrowthrateDistanceSizelimitLabel401.2102Curv1CurvatureSizeFunctionCurvatureSizeFunctionCurvatureSizeFunctionAngleGrowthrateDistanceSizelimitLabel201.2102Curv1CurvatureSizeFunctionCu

5、rvatureSizeFunctionCurvatureSizeFunctionCurvatureSizeFunction40degrees20degrees範例三：TheProximitySizeFunctionProximitySizeFunction：通常使用於控制兩幾何物件之間面網格數，適用於模型中有極小的gap。建立BrickWidthDepthHeightDirection555CenteredWidthDepthHeightDirection0.255Centered建立BrickMovethinne

6、rbrickMovethinnerbrickSubtractvolume2Subtractvolume2CopyCopyProximitySizeFunction（prox1）Cells/gapGrowthrateDistanceSizelimitLabel31.3101prox1ProximitySizeFunction（prox1）MeshMeshProximitySizeFunction（prox2）範例四：CombiningtheSizeFunctionandBoundaryLayerSizeFunctio

7、n&BoundaryLayer：通常使用於控制Boundarylayer網格的形狀。Brick&EllipticalcylinderWidthDepthHeightDirection141414CenteredHeightRadius1Raduis2AxisLocation513CenteredZBrick&EllipticalcylinderSubtractEllipticalcylinderSubtractEllipticalcylinderCopyCopyCurvatureSizeFunctionAngleG

8、rowthrateDistanceSizelimitLabel301.3101Curvbl1CurvatureSizeFunctionCurvatureSizeFunctionCurvatureSizeFunctionBoundaryLayerFirstGrowthfactorRows0.21.23BoundaryLayerSizeFunctionBound