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/********************************************************************
   Density and speed of sound UDFs.
*********************************************************************/
#include "udf.h"

#define BMODULUS 2.2e9
#define rho_ref 1000.0
#define p_ref 101325

DEFINE_PROPERTY(superfluid_density, c, t)
{
    real rho;
    real p, dp;
    p = C_P(c,t) + op_pres;
    dp = p-p_ref;
    rho = rho_ref/(1.0-dp/BMODULUS);
    return rho;
}

DEFINE_PROPERTY(sound_speed, c,t)
{
    real a;
    real p, dp;
    p = C_P(c,t) + op_pres;
    dp = p-p_ref;  a = (1.-dp/BMODULUS)*sqrt(BMODULUS/rho_ref);
    return a;
}

DEFINE_PROFILE(massinlet,t,i)
{
  
  face_t f;
  real time;

  time=CURRENT_TIME;
      begin_f_loop(f,t)
  {  
           
           F_PROFILE(f,t,i) =0.0015+0.000255*sin(8*3.14*50*time) ;
               
  }
  end_f_loop(f,t)
   
}
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