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Previous: Meshing with snappyHexMesh Up: Meshing with snappyHexMesh Next: Tutorial case

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About snappyHexMesh

  • snappyHexMesh is a robust OpenFOAM application for mesh generation.

     

  • It creates computational mesh from a surface CAD model.

     

  • No model parts connectivity is required.

     

  • The model should be “waterproof” or at least only tiny holes are allowed.

     

  • Many options allow wide field of applicability.

     

  • snappyHexMesh checks and evaluates mesh quality parameters.

     

  • Surface model must be provided, e.g., in .OBJ or .STL format.
openfoam tutorial snappyHexMesh example snapping car

Figure: A Simple 2D illustration of snappyHexMesh process

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Next: Model setting without an Up: Alternative formulation Previous: Alternative formulation   Contents   Index

Convergence Deep Analyzing - foamLog Utility

Convergence process can be analyzed using OpenFOAM utility foamLog and log-file (solver output, e.g. log.blueSolver):

# foamLog log.blueSolver

New directory called logs is created and files were created in it. The convergence process can be explored using e.g. gnuplot software.

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Previous: Frozen Rotor vs. Mixing Up: TCFD- CFD Theory Next: Cavitation Risk and Cavitation
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Turbo Blade Post - graphical postprocessing

Turbo Blade Post is designed for postprocessing of rotating machinery. Both radial and axial machines. Pumps, hydro (water) turbines, compressors, turbochargers, propellers and many more.

Turbo Blade Post is product of company CFD Support s.r.o. https://www.cfdsupport.com/(www.cfdsupport.com). It was especially created to enable an effective postprocessing of rotating machinery. Turbo Blade Post is a set of plugins for http://www.paraview.org/ParaView software http://www.paraview.org/www.paraview.org.

ParaView is an open source multiple-platform application for interactive, scientific visualization. It has a client–server architecture to facilitate remote visualization of datasets, and generates level of detail (LOD) models to maintain interactive frame rates for large datasets. It is an application built on top of the Visualization Tool Kit (VTK) libraries. Where VTK is a set of libraries that provide visualization services for data, task, and pipeline parallelism, ParaView is an application designed for data parallelism on shared-memory or distributed-memory multicomputers and clusters. It can also be run as a single-computer application.

ParaView offers the possibility to extend its functionality in several directions. This encompasses modifications to the GUI, implementation of new sources (i.e. generation of predefined curves and bodies), definition of new selection functions etc. The most useful category of plugins are the Filters.

Any extension to ParaView comes in a form of a shared library (something.dll in Windows or libsomething.so in Unix-like systems). The library can be loaded into ParaView using the plugin manager. The plugin manager is accessible through Tools > Manage Plugins. All new plugins have to be loaded there and optionally set to auto-load (see fig. [*]).
menu

Figure: ParaView custom filters

Note — The filters tend to disappear from their categories after use. This is a feature of ParaView, which moves the last used filter menu item into Filters > Recent. That list is, however, limited. Nevertheless, all filters are always accessible through the Filters > Search option.

plugin manager

Subsections

Turbo Unwrap filter – details

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