AccumVacf.c File Reference

#include <stdio.h>
#include "global.h"

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Functions
double	Integrate (double *, int)
void	PrintVacf ()
void	ZeroVacf ()
void	AccumVacf ()

Function Documentation

AccumVacf()

void AccumVacf

(

)

Definition at line 27 of file AccumVacf.c.

                 {
 double fac;
 int j, nb;
 for(nb = 1 ; nb <= nBuffAcf ; nb ++){
  if(indexAcf[nb] == nValAcf){
   for(j = 1 ; j <= nValAcf; j ++){
    viscAcfAv[j] +=  viscAcf[nb][j];
    }
  indexAcf[nb] = 0;
  countAcfAv ++;
  if(countAcfAv == limitAcfAv){
   fac = 1./(kinEnergy*region[1]*region[2]*limitAcfAv);
   viscAcfInt = fac*stepAcf*deltaT*Integrate(viscAcfAv, nValAcf);
   PrintVacf();
   ZeroVacf();
} } } }

References countAcfAv, deltaT, indexAcf, Integrate(), kinEnergy, limitAcfAv, nBuffAcf, nValAcf, PrintVacf(), region, stepAcf, viscAcf, viscAcfAv, viscAcfInt, and ZeroVacf().

Referenced by EvalVacf().

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Integrate()

double Integrate	(	double *	f,
		int	nf )

Definition at line 25 of file Integrate.c.

                                   {
 double s;
 int i;
 s = 0.5*(f[1] + f[nf]);
 for(i = 2 ; i <= nf - 1 ; i ++)
  s += f[i];
 return(s);
}

Referenced by AccumVacf().

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PrintVacf()

void PrintVacf

(

)

Definition at line 25 of file PrintVacf.c.

                {
 double tVal;
 int j;
 fprintf(fpvisc,"viscosity acf\n");
 for(j = 1 ; j <= nValAcf ; j ++){
  tVal = (j-1)*stepAcf*deltaT;
  fprintf(fpvisc, "%lf\t %lf\t %lf\n", tVal, viscAcfAv[j], viscAcfAv[j]/viscAcfAv[1]);
  }
 fprintf(fpvisc, "viscosity acf integral : %lf\n", viscAcfInt);
}

References deltaT, fpvisc, nValAcf, stepAcf, viscAcfAv, and viscAcfInt.

Referenced by AccumVacf().

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ZeroVacf()

void ZeroVacf

(

)

Definition at line 25 of file ZeroVacf.c.

               {
 int j;
 countAcfAv= 0 ;
 for(j = 1 ; j <= nValAcf ; j ++)
  viscAcfAv[j] = 0.;
}

References countAcfAv, nValAcf, and viscAcfAv.

Referenced by AccumVacf().

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