ANSYS Fluent Meshing網(wǎng)格生成界面及流程

1、Fluent Meshing R17.0革命性網(wǎng)格生成界面及流程易用性/工作流程性能/穩(wěn)健性新功能Fluent Meshing R17.0 亮點(diǎn) 改進(jìn)的GUI CAD裝配體 (beta) 新的Join/Intersect 基于Region的體網(wǎng)格劃分 并行Prism網(wǎng)格劃分 多面體網(wǎng)格劃分 其它方面功能增強(qiáng) 主窗口布局 Help/Hide RibbonDetachable ConsoleMovable Icon SetsHighlight entitiesCommon Icons with solverOperationIconsDisplay/Selection controls窗口布局可以

2、用戶自定義目錄樹中使用含義豐富的圖標(biāo)來標(biāo)識(shí)各節(jié)點(diǎn)設(shè)計(jì)流程更加清晰明了各節(jié)點(diǎn)的圖標(biāo)含義更加豐富Note that Volumetric regions Icons are changing after the region is meshedRegions and Cell Zone Icons are indicating the Cell Zone type (Fluid, Solid, Dead) R17.0R16.2顯示/選擇的選項(xiàng)將相關(guān)的功能按鈕集中在Ribbon功能區(qū)里 All Menu items and functionalities are preserved R17.0R16

3、.2將工具欄中的選項(xiàng)移動(dòng)到圖標(biāo)和Ribbon功能區(qū)里Some addition useful options are exposed in the Ribbon and in the Icons工具欄選項(xiàng)R17.0R16.2CameraIcon help text optionHighlight when pickingObjectsVolumetric Regions Cell ZonesR17.0圖標(biāo)和Ribbon功能區(qū)的靈活性當(dāng)窗口尺寸縮小時(shí)Ribbon功能區(qū)的選擇式區(qū)域會(huì)自動(dòng)轉(zhuǎn)換為 按鈕式Clicking on the button gives access to the contro

4、ls圖標(biāo)的尺寸不會(huì)改變，只是臨時(shí)折疊隱藏起來Clicking on these buttons will temporarily show all icons圖標(biāo)組可以移動(dòng)到窗口的任意位置鼠標(biāo)右鍵點(diǎn)擊圖標(biāo)可以控制其顯示 條件選擇、創(chuàng)建幾何體和創(chuàng)建Loop的功能擁有獨(dú)立的圖標(biāo)快捷鍵圖標(biāo)RMB易用性/工作流程性能/穩(wěn)健性新功能Fluent Meshing R17.0 亮點(diǎn) 改進(jìn)的GUI CAD裝配體 (beta) 新的Join/Intersect 基于Region的體網(wǎng)格劃分 并行Prism網(wǎng)格劃分 多面體網(wǎng)格劃分 其它方面功能增強(qiáng) CAD導(dǎo)入/管理使用CAD裝配體方式導(dǎo)入幾何在CAD impor

5、t Options面板激活原始CAD中的裝配體和裝配關(guān)系都得以保留易用性/工作流程性能/穩(wěn)健性新功能Fluent Meshing R17.0 亮點(diǎn) 改進(jìn)的GUI CAD裝配體 (beta) 新的Join/Intersect 基于Region的體網(wǎng)格劃分 并行Prism網(wǎng)格劃分 多面體網(wǎng)格劃分 其它方面功能增強(qiáng) 交互式的Join/Intersect操作找出合適的Join/Intersect容差值可能需要反復(fù)的嘗試 Interactive Join/Intersect has local Mark and Undo operations to avoid incorrect joins and i

6、mprove efficiencyNew options in Intersect to ignore parallel faceshelps in avoiding an accidental intersect operationGap closing、Join和Intersect獨(dú)立的圖標(biāo)Easier access to additional gap closing before joinGap基于Zone進(jìn)行縫隙封閉操作的流程和相關(guān)圖標(biāo) Select the Zone filter and set the (static) zone on one side of the gap as

7、targetSelect the opposite Zone (moving) and on the “gap closing” Icon (Ctrl-Shift-k)Enter a Max Gap Distance and use Mark to checkClick Remove交互式的Gap closingTarget交互式的Join交互式的Join工作流程Select both zones Select “Join” Icon - this will open theJoin panelOptionally use Mark to checkHowever, you will need

8、 to reselect the two zones againAdjust tolerance and click JoinUndo is available until the next meshing operation or until the panel is closed交互式的Intersect交互式的Intersect工作流程Select both zones Select “Intersect ” Icon - this will open the Intersect panelOptionally use Mark to checkHowever, you will nee

9、d to reselect the two zones againOptionally adjust tolerance and/orinvoke options before and clicking IntersectUndo is available until the next meshing operation or until the panel is closed易用性/工作流程性能/穩(wěn)健性新功能Fluent Meshing R17.0 亮點(diǎn) 改進(jìn)的GUI CAD裝配體 (beta) 新的Join/Intersect 基于Region的體網(wǎng)格劃分 并行Prism網(wǎng)格劃分 多面體網(wǎng)

10、格劃分 其它方面功能增強(qiáng) 基于Region的網(wǎng)格劃分為一個(gè)或多個(gè)Region填充體網(wǎng)格Tet or HexCoreWith or without scoped prismsUsing local settings 部分Region網(wǎng)格劃分 (beta)Ability to partly fill a region, or fill a remainder of a partly filled regionScoped prism, Tet and HexCore 在基于Object的網(wǎng)格劃分流程中支持Quad和Hex類型的網(wǎng)格基于Region的網(wǎng)格劃分T-junction案例 從樹中僅選擇固體

11、Region進(jìn)行網(wǎng)格劃分 Select Auto Fill Volume from the Context menuOptionally invoke Scoped PrismsSet Volume fill to TetMesh基于Region的網(wǎng)格劃分T-junction案例 使用自動(dòng)填充體網(wǎng)格為Fluid Region生成Hexcore + Prism類型的體網(wǎng)格使用自動(dòng)填充體網(wǎng)格為Fluid2 Region生成Tet + Prism類型的體網(wǎng)格Fluid2FluidFluid2Fluid基于部分Region的網(wǎng)格劃分(beta)T-junction案例 為所有的solid劃分四面體網(wǎng)格

12、激活beta功能從樹中選擇fluid和fluid2 設(shè)定Scoped Prismfluid and fluid2 regions automatically selected生成Prism網(wǎng)格注意 Volumetric Region中各節(jié)點(diǎn)的圖標(biāo)，fluid和fluid2是“半滿”的圖標(biāo)所生成的Cell zone帶有“prism-cells”后綴Fluid2Fluid基于部分Region的網(wǎng)格劃分(beta)出現(xiàn)新的Draw和Select選項(xiàng)選擇fluid和fluid2 Draw-Options Empty Volume Draw Draw-Options Filled Volume Draw

13、 Fluid2Empty Filled基于部分Region的網(wǎng)格劃分(beta)使用四面體填充為剩下的區(qū)域劃分體網(wǎng)格Create and Compute meshed SF using scoped sizing (meshed) on the prism capSelect fluid and fluid2 and RMB select Tet SetIn Refinement tab select size fieldSelect fluid and fluid2 and RMB selectTet GenerateThis will create a tet mesh of optima

14、lquality and smoothnessFluid基于部分Region的網(wǎng)格劃分(beta)也可以使用Fill Empty Volume功能為剩下的（空白）區(qū)域劃分體網(wǎng)格Select fluid and fluid2, RMB - Fill Empty VolumeAdd a second scoped prism layer!Select fluid and fluid2 RMB - Merge CellsMerge cells within regionsThe Cell Zone names reverts back to fluid and fluid2Fluid2基于Objec

15、t的網(wǎng)格劃分 支持Quad/HexObject樹中支持六面體和四邊形網(wǎng)格Import hex meshes from Workbench meshingCreate Objects from Unreferenced and Compute volumetric regions易用性/工作流程性能/穩(wěn)健性新功能Fluent Meshing R17.0 亮點(diǎn) 改進(jìn)的GUI CAD裝配體 (beta) 新的Join/Intersect 基于Region的體網(wǎng)格劃分 并行Prism網(wǎng)格劃分 多面體網(wǎng)格劃分 其它方面功能增強(qiáng) 并行Prism + 串行Tet網(wǎng)格劃分 性能提升使用8個(gè)節(jié)點(diǎn)進(jìn)行并行網(wǎng)格劃分

16、時(shí)，比串行網(wǎng)格劃分大約快2到3倍使用方法In Parallel panel activate Auto Partition Use Auto Mesh and select Prisms + TetFor saving file in hdf5 format (beta) usefile/write-case filename.cas.h5 yes并行Prism + 串行Tet網(wǎng)格劃分 Surface MeshNode 0 - TetNode 1 - PrismNode 2 Prism Node 3 - PrismNode 4 - PrismPrism-Cap Surface meshFlue

17、nt SolverHDF5 WritePrincipal inertia axis method并行Prism分區(qū)使用慣性主軸的方式進(jìn)行分區(qū)Gives a decent initial distributionOnly works efficiently for (power of 2) number of nodes ;2, 4, 8 Not recommended above 8 nodes !使用8個(gè)節(jié)點(diǎn)進(jìn)行并行網(wǎng)格劃分的案例：DrivAer Car模型Partition Summary:Partition 0 : 395645 faces (14.1 %)Partition 1 : 3

18、33833 faces (11.9 %)Partition 2 : 391337 faces (14.0 %)Partition 3 : 332926 faces (11.9 %)Partition 4 : 382297 faces (13.6 %)Partition 5 : 330134 faces (11.8 %)Partition 6 : 321412 faces (11.5 %)Partition 7 : 317079 faces (11.3 %)易用性/工作流程性能/穩(wěn)健性新功能Fluent Meshing R17.0 亮點(diǎn) 改進(jìn)的GUI CAD裝配體 (beta) 新的Join/I

19、ntersect 基于Region的體網(wǎng)格劃分 并行Prism網(wǎng)格劃分 多面體網(wǎng)格劃分 其它方面功能增強(qiáng) 原生多面體網(wǎng)格劃分效率提升相比較于之前的生成四面體網(wǎng)格再到Fluent Solver中轉(zhuǎn)換為多面體網(wǎng)格的方法，約有2到3倍的內(nèi)存占用降低和約2到3倍的生成速度提升最佳的生成流程支持Baffles、Local refinements、Size Function和Scoped prism相比較于轉(zhuǎn)換得到的多面體網(wǎng)格，能夠?qū)⒕W(wǎng)格總數(shù)降低約15-30 %，同時(shí)也降低了體網(wǎng)格的尺寸變化比率 生成的多面體網(wǎng)格質(zhì)量也較高通過AutoMesh面板控制參數(shù)Simply activate Poly in Vo

20、lume FillPoly setting is essentially identical to the Tet refinement settingsFeatures are preserved for angle of 30 degrees and aboveUse /mesh/poly/controls/feature-angle to control原生多面體網(wǎng)格劃分原生多面體網(wǎng)格劃分BOI帶有局部BOI加密的起落架模型8.1 million poly cells R16.1Worst initial OS = 0.993 cells over 0.9 fixed by ANMTim

21、e = 32 minPeak memory 12 GBR17.0Worst OS = 0.9Time = 20 minPeak memory 12 GBBOI原生多面體網(wǎng)格劃分BOI帶有局部BOI加密的燃燒室模型6.0 million poly cells, 8.5 GBR16.2Worst initial OS = 0.9533 cells over 0.9 fixed by ANMWorst Size Change = 34000Time = 22 minR17.0Worst initial OS = 0.9512 cells over 0.9 fixed by ANMWorst Size

22、 Change = 7700Time = 17.5 minBOI原生和轉(zhuǎn)換的多面體網(wǎng)格性能對(duì)比原生多面體網(wǎng)格比轉(zhuǎn)換多面體網(wǎng)格快3.5倍Generic Combustor case原生和轉(zhuǎn)換的多面體網(wǎng)格性能對(duì)比DrivAer car case原生多面體網(wǎng)格比轉(zhuǎn)換多面體網(wǎng)格快3.2倍易用性/工作流程性能/穩(wěn)健性新功能Fluent Meshing R17.0 亮點(diǎn) 改進(jìn)的GUI CAD裝配體 (beta) 新的Join/Intersect 基于Region的體網(wǎng)格劃分 并行Prism網(wǎng)格劃分 多面體網(wǎng)格劃分 其它方面功能增強(qiáng) 現(xiàn)在有三種方法可以對(duì)入口/出口進(jìn)行封堵或補(bǔ)洞對(duì)于簡(jiǎn)單的開口Selectin

23、g and Edge + using Create對(duì)于多個(gè)開口Selecting a face + using Patch (previous Repair)封堵或補(bǔ)洞得到的結(jié)果，和Ribbon功能區(qū)中的Remesh和Separate選項(xiàng)相關(guān)如果開啟了Separate選項(xiàng)，在封堵時(shí)會(huì)彈出新的窗口，可以歸類、重命名等Object nameFace Label/Zone nameObject type Zone type補(bǔ)面/封蓋功能增強(qiáng)第三種方法，使用Loop功能對(duì)于復(fù)雜的開口Use Loop selection tools + Create Patch使用這種方法封堵總會(huì)彈出新的窗口，進(jìn)行歸類、重命名等 Object nameFace Label/Zone nameObject type Zone typeRemesh option補(bǔ)面/封蓋功能增強(qiáng)For Mesh Objects: The label name and the zone name will always be the sameDefault Zone/patch name = “patch-id”交互式的Edge Zone顯