phasicFlow/tutorials/sphereGranFlow/toteblender/caseSetup/interaction

/* -------------------------------*- C++ -*--------------------------------- *\ 
|  phasicFlow File                                                            | 
|  copyright: www.cemf.ir                                                     | 
\* ------------------------------------------------------------------------- */ 
objectName interaction;
objectType dicrionary;
fileFormat  ASCII;
/*---------------------------------------------------------------------------*/

// a list of materials names
materials      (solidProperty);

// density of materials [kg/m3]
densities      (1000.0);   

contactListType   sortedContactList; 

model
{
   contactForceModel       nonLinearNonLimited;
    
   rollingFrictionModel    normal;
   
   /*
   Property (solidProperty-solidProperty);
   */
    
   // Young modulus [Pa]
   Yeff  (1.0e6);       

   // Shear modulus [Pa]
   Geff  (0.8e6);       
    
   // Poisson's ratio [-]
   nu    (0.25);        
    
   // coefficient of normal restitution
   en    (0.7);         

   // coefficient of tangential restitution
   et    (1.0);          

   // dynamic friction
   mu    (0.3);          

   // rolling friction
   mur   (0.1);                  
}

contactSearch
{

   // method for broad search particle-particle
   method         NBS;

   // method for broad search particle-wall           
   wallMapping    cellMapping;   

   NBSInfo
   {
      // each 20 timesteps, update neighbor list 
      updateFrequency 20; 
   
      // bounding box size to particle diameter (max)       
      sizeRatio      1.1;        
   }

   cellMappingInfo
   {
      // each 20 timesteps, update neighbor list
      updateFrequency 20;
      
      // bounding box for particle-wall search (> 0.5)          
      cellExtent     0.7;        
   }

}