.. index:: dataExchangeModel_twoWayFiles

dataExchangeModel_twoWayFiles command
=====================================

Syntax
""""""

Defined in couplingProperties dictionary.

.. parsed-literal::

   dataExchangeModel twoWayFiles;
   twoWayFilesProps
   {
       couplingFilename "filename";
       maxNumberOfParticles scalar1;
       DEMts scalar2;
   };

* *filename* = filename of the VTK file series
* *scalar1* = maximum number of particles in DEM simulation
* *scalar2* = DEM time step width


Examples
""""""""

.. parsed-literal::

   dataExchangeModel twoWayFiles;
   twoWayFilesProps
   {
       couplingFilename "vtk_out%4.4d.vtk";
       maxNumberOfParticles 30000;
   }

Description
"""""""""""

The data exchange model performs the data exchange between the DEM code and the CFD code. The twoWayFiles model is a model that can exchange particle properties from DEM to CFD and from CFD to DEM. Data is exchanged via files that are sequentially written/read by the codes.

Restrictions
""""""""""""


Developed only for two processors, one for DEM and one for CFD run.

Related commands
""""""""""""""""

:doc:`dataExchangeModel <dataExchangeModel>`


.. _liws: http://www.cfdem.com
.. _ld: Manual.html
.. _lc: Section_commands.html#comm