![]() In this case, one needs to create the 2D cross-section first and then extrude it by rotation. We strongly recommend this approach for following two cases: All commercial pre-processors has basic built-in features to create Geometrical Entities. The second approach is to create geometry directly into the pre-processor.Once the geometry is imported into the Pre-processor, defeature as per requirement. All Pre-processors available has build-in capacity to read (Import) CAD data in this format. This geometry should be translated to a Neutral format such as IGES, STEP, Parasolid. ![]() The geometry information created so far is called to be in "Native CAD" format. Create geometry in any CAD (Computer-Aided Design) software such as Unigraphics,Ĭatia, Pro/E, Solidedge. ![]() The geometry creation for CFD can be accomplished by either of the following two methods: No geometrical information is associated with the solution domain. ![]() It is the mesh and nodes generated to define and represent the physical space mathematically. These are "volumes surrounded by closed surfaces(called boundaries)" in 3D and "areas closed by edges or lines (called boundaries)" in 2D. This is known as "ZONES" in FLUENT, "REGIONS" in STAR-CCM+ and "DOMAIN" in CFX. Solution of computational domain refers to 2D or 3D geometry in which fluid flow and/or heat transfer phenomena need to be solved. Geometry or computational domain for CFD simulation requires a water tight geometry with simplification to handle the mesh creation process. ![]()
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