Difference between revisions of "MRFSimpleFoam"
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This tutorial is aimed to generating the mesh in Gambit, importing and solving it with MRFSimpleFoam. | This tutorial is aimed to generating the mesh in Gambit, importing and solving it with MRFSimpleFoam. | ||
| − | == Mesh Generation == | + | == Mesh Generation and Import == |
# generate two cylinders (r1=0.5 h1=1; r2=0.25, h2=0.5) and one cube (h3=0.3)[[Image:Objects.png|center|thumb|Domain generation]] | # generate two cylinders (r1=0.5 h1=1; r2=0.25, h2=0.5) and one cube (h3=0.3)[[Image:Objects.png|center|thumb|Domain generation]] | ||
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# define continuum types (zones): rotor for cylinder 2, and stator for cylinder 1[[Image:Objects.png|center|thumb|Rotor/Stator domain]] | # define continuum types (zones): rotor for cylinder 2, and stator for cylinder 1[[Image:Objects.png|center|thumb|Rotor/Stator domain]] | ||
# define boundaries (inlet, outlet, cubeWall, cylindricWall, sliderFace), and couple the interfaces (sliderFace)[[Image:boundaries.png|center|thumb|Boundaries]] | # define boundaries (inlet, outlet, cubeWall, cylindricWall, sliderFace), and couple the interfaces (sliderFace)[[Image:boundaries.png|center|thumb|Boundaries]] | ||
| − | # define the coupled interface as INTERIOR | + | # define the coupled interface as INTERIOR[[Image:couple.png|center|thumb|Couple interfaces]] |
| − | # generate tetrahedral mesh (0.05 size)[[Image:]] | + | # generate tetrahedral mesh (0.05 size)[[Image:mesh.png|center|thumb|Mesh]] |
# export | # export | ||
# fluentMeshToFoam ./ simulation geom/mrf.msh -writeSets -writeZones | # fluentMeshToFoam ./ simulation geom/mrf.msh -writeSets -writeZones | ||
| + | |||
| + | == Solver Running == | ||
| + | |||
| + | Before you start the solver, another modification is needed: change in all the dictionaries the patch ''cubeWall'' with ''rotor'' and ''cylindricWall'' with ''stator''. Of course you could name this patches as it should from the beginning in Gambit, but I considered that in this way it will be clearer since the same name ''rotor'' appears in two places: zone and patch. | ||
| + | The rotational axis, and the angular velocity are specified using a dictionary file named constant/MRFZones. | ||
| + | The solver can be started as: | ||
| + | MRFSimpleFoam ./ simulation | ||
Revision as of 06:37, 31 March 2008
1 MRFSimpleFoam
1.1 Introduction
This tutorial is aimed to generating the mesh in Gambit, importing and solving it with MRFSimpleFoam.
1.2 Mesh Generation and Import
- generate two cylinders (r1=0.5 h1=1; r2=0.25, h2=0.5) and one cube (h3=0.3)
Domain generation
- substract cylinder 2 from 1 (maintain cylinder 2)
- substract cube 3 from cylinder 2
- define continuum types (zones): rotor for cylinder 2, and stator for cylinder 1 Rotor/Stator domain
- define boundaries (inlet, outlet, cubeWall, cylindricWall, sliderFace), and couple the interfaces (sliderFace)
Boundaries - define the coupled interface as INTERIOR
Couple interfaces - generate tetrahedral mesh (0.05 size)
Mesh - export
- fluentMeshToFoam ./ simulation geom/mrf.msh -writeSets -writeZones
1.3 Solver Running
Before you start the solver, another modification is needed: change in all the dictionaries the patch cubeWall with rotor and cylindricWall with stator. Of course you could name this patches as it should from the beginning in Gambit, but I considered that in this way it will be clearer since the same name rotor appears in two places: zone and patch. The rotational axis, and the angular velocity are specified using a dictionary file named constant/MRFZones. The solver can be started as: MRFSimpleFoam ./ simulation
