Nstrophy/src/driving.c

#include "driving.h"
#include "navier-stokes.h"
#include "io.h"
#include <math.h>

// test driving function
int g_test(
  _Complex double* g,
  int K1,
  int K2
){
  int kx,ky;
  for(kx=0;kx<=K1;kx++){
    for(ky=(kx>0 ? -K2 : 1);ky<=K2;ky++){
      if(kx==2 && ky==-1){
	g[klookup_sym(kx,ky,K2)]=0.5+sqrt(3)/2*I;
      }
      else{
        g[klookup_sym(kx,ky,K2)]=0.;
      }
    }
  }

  return 0;
}

int g_zero(
  _Complex double* g,
  int K1,
  int K2
){
  int i;
  for(i=0;i<K1*(2*K2+1)+K2;i++){
    g[i]=0.;
  }

  return 0;
}

// From file
// txt input
int driving_file_txt (
  _Complex double* g,
  int K1,
  int K2,
  FILE* file
){
  read_vec(g, K1, K2, file);
  return 0;
}
// binary input
int driving_file_bin (
  _Complex double* g,
  int K1,
  int K2,
  FILE* file
){
  read_vec_bin(g, K1, K2, file);
  return 0;
}