2.4.3. Meshing

The HydroUQ app provides basic meshing capabilities. The meshing window can be activated by selecting the option from the left panel as shown in Fig. 2.4.3.1.

../../../_images/MeshSetting.png

Fig. 2.4.3.1 Meshing settings panel available in EVT

Three possible options are available in the HydroUQ app to define the mesh. This includes the internal mesher, importing external meshes, or importing mesh dictionaries.

  1. HydroUQ meshing: This is the inbuilt mesher provided in the application and is shown in Fig. 2.4.3.2. A slider bar from Very coarse to Very fine defines the mesh quality. Further on, specific regions can be specified for regional refinements. These regional refinements are specified through a tabular format by identifying the two diagonal points of the region of interest.

    ../../../_images/MeshMethod.png

    Fig. 2.4.3.2 Meshing methods available in EVT

  2. External mesh import: HydroUQ app also supports the import of meshes generated from existing pre-processing software and is shown in Fig. 2.4.3.3. At present, the supported formats include Fluent (.msh), I-DEAS (.ans), CFX (.geo), GAMBIT (.neu) and Gmsh (.msh) file formats.

    ../../../_images/UploadMesh.png

    Fig. 2.4.3.3 Mesh generated from commercial tools can be directly imported into EVT

  3. Mesh dictionary: HydroUQ app also supports importing mesh dictionaries of OpenFOAM v7.0. The user can upload the blockMeshDict and the snappyHexMeshDict. These dictionaries will be used instead of the dictionaries generated by the HydroUQ app.

    ../../../_images/MeshDict.png

    Fig. 2.4.3.4 Mesh dictionaries for OpenFOAM / OlaFlow solvers can also be directly imported into EVT