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107 lines
3.8 KiB
Plaintext
107 lines
3.8 KiB
Plaintext
"CFDEMproject Website"_lws - "Main Page"_main :c
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:link(lws,http://www.cfdem.com)
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:link(main,CFDEMcoupling_Manual.html)
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:line
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cfdemSolverIB command :h3
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[Description:]
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"cfdemSolverIB" is a coupled CFD-DEM solver using CFDEMcoupling, an open-source
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parallel coupled CFD-DEM framework, for calculating the dynamics between
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immersed bodies and the surrounding fluid. Being an implementation of an
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immersed boundary method it allows tackling problems where the body diameter
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exceeds the maximal size of a fluid cell.
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<!-- HTML_ONLY -->
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Using the toolbox of OpenFOAM®(*) the governing equations of the fluid are
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computed and the corrections of velocity and pressure field with respect to the
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body-movement information, gained from LIGGGHTS, are incorporated.
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<!-- END_HTML_ONLY -->
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<!-- RST
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Using the toolbox of OpenFOAM\ |reg|\ (*) the governing equations of the fluid are
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computed and the corrections of velocity and pressure field with respect to the
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body-movement information, gained from LIGGGHTS, are incorporated.
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.. |reg| unicode:: U+000AE .. REGISTERED SIGN
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END_RST -->
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The code of this solver was contributed by A. Hager, JKU. For more details, see
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"Goniva et al. (2011)"_#Goniva2011 and "Hager et al. (2011)"_#Hager2011
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[Algorithm:]
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For each time step ...
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the motion of the spheres is calculated (position, velocity, angular velocity,
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force...) with LIGGGHTS using the velocity and pressure-field from the previous
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time step (initial condition for t=0). :ulb,l
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the Navier-Stokes equations are solved on the whole computational domain,
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disregarding the solid phase. :l
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the spheres are located within the mesh: each sphere is represented by a cluster
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of cells, which are either totally or partially covered by the body, depending
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on its exact position. :l
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the correction of the velocity and pressure field of the fluid phase takes
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place, using the information about the location of the spheres and their
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(angular) velocity. :l
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:ule
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[Use:]
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The solver is realized within the open-source framework CFDEMcoupling. Just as
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for the unresolved CFD-DEM solver cfdemSolverPiso the file
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CFD/constant/couplingProperties contains information about the settings for the
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different models. While IOmodel, DataExchangeModel etc. are applicable for all
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CFDEMcoupling-solvers, special locate-, force- and void fraction models were
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designed for the present case:
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"engineSearchIB"_locateModel_engineSearchIB.html,
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"ArchimedesIB"_forceModel_ArchimedesIB.html,
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"ShirgaonkarIB"_forceModel_ShirgaonkarIB.html,
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"IBVoidfraction"_voidFractionModel_IBVoidFraction.html
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:line
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:link(Goniva2011)
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[(Goniva, 2011)] Goniva, C., Kloss, C., Hager, A., Wierink, G. and Pirker, S.,
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"A multi-purpose open source CFD-DEM approach",
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Proc. of the 8th Int. Conf. on CFD in Oil and Gas, Metallurgical and Process Industries,
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Trondheim, Norway (2011)
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:link(Hager2011)
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[(Hager, 2011)] Hager, A., Kloss, C. and Goniva, C.,
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"Towards an efficient immersed boundary method within an open source framework",
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Proc. of the 8th Int. Conf. on CFD in Oil and Gas, Metallurgical and Process Industries,
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Trondheim, Norway (2011)
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:line
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<!-- HTML_ONLY -->
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NOTE:
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(*) This offering is not approved or endorsed by OpenCFD Limited, producer and
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distributor of the OpenFOAM software via www.openfoam.com, and owner of the
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OPENFOAM® and OpenCFD® trade marks.
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OPENFOAM® is a registered trade mark of OpenCFD Limited, producer and
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distributor of the OpenFOAM software via www.openfoam.com.
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<!-- END_HTML_ONLY -->
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<!-- RST
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.. note::
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(*) This offering is not approved or endorsed by OpenCFD Limited, producer
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and distributor of the OpenFOAM software via www.openfoam.com, and owner of
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the OPENFOAM\ |reg| and OpenCFD\ |reg| trade marks.
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OPENFOAM\ |reg| is a registered trade mark of OpenCFD Limited, producer and
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distributor of the OpenFOAM software via www.openfoam.com.
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.. |reg| unicode:: U+000AE .. REGISTERED SIGN
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END_RST -->
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