![]() ![]() The computational mesh was created in an automated workflow using the snappyHexMesh application. Any number of model components is allowed. A combination of snappyHexMesh components and external mesh components is allowed. All the meshes can be created automatically for each component within snappyHexMesh or loaded as an external mesh. The Inlet pipe, the Impeller, the Volute, and the Outlet tube. ![]() In this particular study, the centrifugal pump model is split into four components. For each individual model component is created its own volume mesh first, and after that, for the simulation process, the individual meshes are merged into single one mesh by the TCAE processor. Each pump part (model component) is watertight and includes its own inlet interface, outlet interface, and corresponding walls (wall, blade, hub, shroud, fillets, stator blades, vane blades, …). ![]() In this centrifugal pump project, the CAD model was split into four logical parts: Inlet tube, Impeller, Volute, and Draft tube. This preprocessing phase of the workflow is extremely important because it determines the simulation potential and limits the CFD results. The final surface model in the STL format is created as input for the meshing phase. This centrifugal pump CAD model is reasonably simple. The principle is always the same: the surface model has to be created all the tiny, irrelevant, and problematic model parts must be removed, and all the holes must be sealed up (watertight surface model is required). ![]()
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