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📄 fdtd_3d_pml_hx.cpp

📁 利用c++语言写的三维FDTD
💻 CPP
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#include "fdtd_3d_pml_hx.h"

///////////////////////////////////////////////////////////////////////////////////////
//Calculate Hx field
///////////////////////////////////////////////////////////////////////////////////////
void calc_Hx_1(double ***Hx, double ***Ey, double ***Ez, double ***Bx_1, long  ***Ind, 
			   double *mu_r, double *K_Bx_a_1, double *K_Bx_b_1, double *K_Hx_a_1, 
			   double *K_Hx_b_1, double *K_Hx_c_1, double *K_Hx_d_1, double inv_dy, 
			   double inv_dz, long  nPML_x_1, long  nPML_y_1, long  nPML_z_1)
{
	long  i, j, k;
	double Bx_r;

	//1
	for (i = 0; i < nPML_x_1; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				
				Bx_r = Bx_1[i][j][k];

				Bx_1[i][j][k] = K_Bx_a_1[j]*Bx_1[i][j][k] + 
					            K_Bx_b_1[j]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                  (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + 
					          K_Hx_b_1[k]*( K_Hx_c_1[i]*Bx_1[i][j][k] + 
							                K_Hx_d_1[i]*Bx_r )/mu_r[Ind[i][j][k]];
			}
		}
	}
}

void calc_Hx_2(double ***Hx, double ***Ey, double ***Ez, double ***Bx_2, long  ***Ind, 
			   double *mu_r, double *K_Bx_a_1, double *K_Bx_b_1, double *K_Hx_a_1, 
			   double *K_Hx_b_1, double inv_dy, double inv_dz, long  nPML_x_1, 
			   long  nx_MIN_nPML_x_2, long  nPML_y_1, long  nPML_z_1, double TwoOREp0DIVMu0)
{
	long  i, j, k, ia;
	double Bx_r;

	//2
	ia = 0;
	for (i = nPML_x_1; i < nx_MIN_nPML_x_2; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bx_r = Bx_2[ia][j][k];

				Bx_2[ia][j][k] = K_Bx_a_1[j]*Bx_2[ia][j][k] + 
					             K_Bx_b_1[j]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                   (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + K_Hx_b_1[k]*TwoOREp0DIVMu0*
					                ( Bx_2[ia][j][k] - Bx_r )/mu_r[Ind[i][j][k]];
			}
		}
		ia++;
	}
}

void calc_Hx_3(double ***Hx, double ***Ey, double ***Ez, double ***Bx_3, long  ***Ind, 
			   double *mu_r, double *K_Bx_a_1, double *K_Bx_b_1, double *K_Hx_a_1, 
			   double *K_Hx_b_1, double *K_Hx_c_2, double *K_Hx_d_2, double inv_dy, 
			   double inv_dz, long  nx_MIN_nPML_x_2, long  nx, long  nPML_y_1, long  nPML_z_1,
			   long  nPML_x_2_MIN_1)
{
	long  i, j, k, ii, ia;
	double Bx_r;

	//3
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_nPML_x_2; i < nx; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bx_r = Bx_3[ia][j][k];

				Bx_3[ia][j][k] = K_Bx_a_1[j]*Bx_3[ia][j][k] + 
					             K_Bx_b_1[j]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                   (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + 
					          K_Hx_b_1[k]*( K_Hx_c_2[ii]*Bx_3[ia][j][k] + 
							                K_Hx_d_2[ii]*Bx_r )/mu_r[Ind[i][j][k]];
			}
		}
		ia++;
		ii--;
	}
}

void calc_Hx_4(double ***Hx, double ***Ey, double ***Ez, double ***Bx_4, long  ***Ind, 
			   double *mu_r, double *K_Hx_a_1, double *K_Hx_b_1, double *K_Hx_c_1, 
			   double *K_Hx_d_1, double dtDIVdy, double dtDIVdz, long  nPML_x_1, 
			   long  nPML_y_1, long  ny_MIN_1_MIN_nPML_y_2, long  nPML_z_1)
{
	long  i, j, k, ja;
	double Bx_r;

	//4
	for (i = 0; i < nPML_x_1; i++)
	{	
		ja = 0;
		for (j = nPML_y_1; j < ny_MIN_1_MIN_nPML_y_2; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bx_r = Bx_4[i][ja][k];

				Bx_4[i][ja][k] += ( (Ey[i][j][k+1] - Ey[i][j][k])*dtDIVdz -
							        (Ez[i][j+1][k] - Ez[i][j][k])*dtDIVdy );

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + 
					          K_Hx_b_1[k]*( K_Hx_c_1[i]*Bx_4[i][ja][k] + 
							                K_Hx_d_1[i]*Bx_r )/mu_r[Ind[i][j][k]];
			}
			ja++;
		}
	}
}

void calc_Hx_5(double ***Hx, double ***Ey, double ***Ez, long  ***Ind, 
			   double *mu_r, double *K_Hx_a_1, double *K_Hx_b_1,
			   double TwoOREp0DIVMu0ORdtDIVdy, double TwoOREp0DIVMu0ORdtDIVdz, 
			   long  nPML_x_1, long  nx_MIN_nPML_x_2, long  nPML_y_1,
			   long  ny_MIN_1_MIN_nPML_y_2, long  nPML_z_1)
{
	long  i, j, k;
	
	//5
	for (i = nPML_x_1; i < nx_MIN_nPML_x_2; i++)
	{	
		for (j = nPML_y_1; j < ny_MIN_1_MIN_nPML_y_2; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + K_Hx_b_1[k]/mu_r[Ind[i][j][k]]*
				 	          ( (Ey[i][j][k+1] - Ey[i][j][k])*TwoOREp0DIVMu0ORdtDIVdz -
							    (Ez[i][j+1][k] - Ez[i][j][k])*TwoOREp0DIVMu0ORdtDIVdy );
			}
		}
	}
}

void calc_Hx_6(double ***Hx, double ***Ey, double ***Ez, double ***Bx_6, long  ***Ind, 
			   double *mu_r, double *K_Hx_a_1, double *K_Hx_b_1, double *K_Hx_c_2, 
			   double *K_Hx_d_2, double dtDIVdy, double dtDIVdz, long  nx_MIN_nPML_x_2, 
			   long  nx, long  nPML_y_1, long  ny_MIN_1_MIN_nPML_y_2, long  nPML_z_1,
			   long  nPML_x_2_MIN_1)
{
	long  i, j, k, ii, ia, ja;
	double Bx_r;

	//6
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_nPML_x_2; i < nx; i++)
	{	
		ja = 0;
		for (j = nPML_y_1; j < ny_MIN_1_MIN_nPML_y_2; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bx_r = Bx_6[ia][ja][k];

				Bx_6[ia][ja][k] += ( (Ey[i][j][k+1] - Ey[i][j][k])*dtDIVdz -
							         (Ez[i][j+1][k] - Ez[i][j][k])*dtDIVdy );

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + 
					          K_Hx_b_1[k]*( K_Hx_c_2[ii]*Bx_6[ia][ja][k] + 
							                K_Hx_d_2[ii]*Bx_r )/mu_r[Ind[i][j][k]];
			}
			ja++;
		}
		ia++;
		ii--;
	}
}

void calc_Hx_7(double ***Hx, double ***Ey, double ***Ez, double ***Bx_7, long  ***Ind, 
			   double *mu_r, double *K_Bx_a_2, double *K_Bx_b_2, double *K_Hx_a_1, 
			   double *K_Hx_b_1, double *K_Hx_c_1, double *K_Hx_d_1, double inv_dy, 
			   double inv_dz, long  nPML_x_1, long  ny_MIN_1_MIN_nPML_y_2, long  ny_MIN_1,
			   long  nPML_z_1, long  nPML_y_2_MIN_1)
{
	long  i, j, k, jj, ja;
	double Bx_r;

	//7
	for (i = 0; i < nPML_x_1; i++)
	{	
		ja = 0;
		jj = nPML_y_2_MIN_1;
		for (j = ny_MIN_1_MIN_nPML_y_2; j < ny_MIN_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bx_r = Bx_7[i][ja][k];

				Bx_7[i][ja][k] = K_Bx_a_2[jj]*Bx_7[i][ja][k] + 
					             K_Bx_b_2[jj]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                    (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + 
					          K_Hx_b_1[k]*( K_Hx_c_1[i]*Bx_7[i][ja][k] + 
							                K_Hx_d_1[i]*Bx_r )/mu_r[Ind[i][j][k]];
			}
			ja++;
			jj--;
		}
	}
}

void calc_Hx_8(double ***Hx, double ***Ey, double ***Ez, double ***Bx_8, long  ***Ind, 
			   double *mu_r, double *K_Bx_a_2, double *K_Bx_b_2, double *K_Hx_a_1, 
			   double *K_Hx_b_1, double inv_dy, double inv_dz, long  nPML_x_1, 
			   long  nx_MIN_nPML_x_2, long  ny_MIN_1_MIN_nPML_y_2, long  ny_MIN_1,
			   long  nPML_z_1, long  nPML_y_2_MIN_1, double TwoOREp0DIVMu0)
{
	long  i, j, k, jj, ia, ja;
	double Bx_r;

	//8
	ia = 0;
	for (i = nPML_x_1; i < nx_MIN_nPML_x_2; i++)
	{	
		ja = 0;
		jj = nPML_y_2_MIN_1;
		for (j = ny_MIN_1_MIN_nPML_y_2; j < ny_MIN_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bx_r = Bx_8[ia][ja][k];

				Bx_8[ia][ja][k] = K_Bx_a_2[jj]*Bx_8[ia][ja][k] + 
					              K_Bx_b_2[jj]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                     (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] +  K_Hx_b_1[k]*TwoOREp0DIVMu0*
					             ( Bx_8[ia][ja][k] - Bx_r )/mu_r[Ind[i][j][k]];
			}
			ja++;
			jj--;
		}
		ia++;
	}
}

void calc_Hx_9(double ***Hx, double ***Ey, double ***Ez, double ***Bx_9, long  ***Ind, 
			   double *mu_r, double *K_Bx_a_2, double *K_Bx_b_2, double *K_Hx_a_1, 
			   double *K_Hx_b_1, double *K_Hx_c_2, double *K_Hx_d_2, double inv_dy, 
			   double inv_dz, long  nx_MIN_nPML_x_2, long  nx, long  ny_MIN_1_MIN_nPML_y_2,
			   long  ny_MIN_1, long  nPML_z_1, long  nPML_x_2_MIN_1, long  nPML_y_2_MIN_1)
{
	long  i, j, k, ii, jj, ia, ja;
	double Bx_r;

	//9
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_nPML_x_2; i < nx; i++)
	{	
		ja = 0;
		jj = nPML_y_2_MIN_1;
		for (j = ny_MIN_1_MIN_nPML_y_2; j < ny_MIN_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bx_r = Bx_9[ia][ja][k];

				Bx_9[ia][ja][k] = K_Bx_a_2[jj]*Bx_9[ia][ja][k] + 
					              K_Bx_b_2[jj]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                     (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] = K_Hx_a_1[k]*Hx[i][j][k] + 
					          K_Hx_b_1[k]*( K_Hx_c_2[ii]*Bx_9[ia][ja][k] + 
							                K_Hx_d_2[ii]*Bx_r )/mu_r[Ind[i][j][k]];
			}
			ja++;
			jj--;
		}
		ia++;
		ii--;
	}
}

void calc_Hx_10(double ***Hx, double ***Ey, double ***Ez, double ***Bx_10, long  ***Ind, 
			   double *mu_r, double *K_Bx_a_1, double *K_Bx_b_1, double *K_Hx_c_1, 
			   double *K_Hx_d_1, double inv_dy, double inv_dz, long  nPML_x_1, 
			   long  nPML_y_1, long  nPML_z_1, long  nz_MIN_1_MIN_nPML_z_2, 
			   double inv_TwoOREp0)
{
	long  i, j, k, ka;
	double Bx_r;

	//10
	for (i = 0; i < nPML_x_1; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			ka = 0;
			for (k = nPML_z_1; k < nz_MIN_1_MIN_nPML_z_2; k++)
			{
				Bx_r = Bx_10[i][j][ka];

				Bx_10[i][j][ka] = K_Bx_a_1[j]*Bx_10[i][j][ka] + 
					              K_Bx_b_1[j]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                    (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] = Hx[i][j][k] + 
					          inv_TwoOREp0*( K_Hx_c_1[i]*Bx_10[i][j][ka] + 
							                 K_Hx_d_1[i]*Bx_r )/mu_r[Ind[i][j][k]];
				ka++;
			}
		}
	}
}

void calc_Hx_11(double ***Hx, double ***Ey, double ***Ez, long  ***Ind, double *mu_r, 
				double *K_Bx_a_1, double *K_Bx_b_1, double inv_dyORmu_0, 
				double inv_dzORmu_0, long  nPML_x_1, long  nx_MIN_nPML_x_2, long  nPML_y_1, 
				long  nPML_z_1, long  nz_MIN_1_MIN_nPML_z_2)
{
	long  i, j, k;
	
	//11
	for (i = nPML_x_1; i < nx_MIN_nPML_x_2; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			for (k = nPML_z_1; k < nz_MIN_1_MIN_nPML_z_2; k++)
			{
				Hx[i][j][k] = K_Bx_a_1[j]*Hx[i][j][k] + K_Bx_b_1[j]/mu_r[Ind[i][j][k]]*
					                 ( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dzORmu_0 -
  						               (Ez[i][j+1][k] - Ez[i][j][k])*inv_dyORmu_0);
			}
		}
	}
}

void calc_Hx_12(double ***Hx, double ***Ey, double ***Ez, double ***Bx_12, long  ***Ind, 
			    double *mu_r, double *K_Bx_a_1, double *K_Bx_b_1, double *K_Hx_c_2, 
				double *K_Hx_d_2, double inv_dy, double inv_dz, long  nx_MIN_nPML_x_2, 
				long  nx, long  nPML_y_1, long  nPML_z_1, long  nz_MIN_1_MIN_nPML_z_2,
			    long  nPML_x_2_MIN_1, double inv_TwoOREp0)
{
	long  i, j, k, ii, ia, ka;
	double Bx_r;

	//12
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_nPML_x_2; i < nx; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			ka = 0;
			for (k = nPML_z_1; k < nz_MIN_1_MIN_nPML_z_2; k++)
			{
				Bx_r = Bx_12[ia][j][ka];

				Bx_12[ia][j][ka] = K_Bx_a_1[j]*Bx_12[ia][j][ka] + 
					               K_Bx_b_1[j]*( (Ey[i][j][k+1] - Ey[i][j][k])*inv_dz -
							                     (Ez[i][j+1][k] - Ez[i][j][k])*inv_dy);

				Hx[i][j][k] += inv_TwoOREp0*( K_Hx_c_2[ii]*Bx_12[ia][j][ka] + 
							                  K_Hx_d_2[ii]*Bx_r )/mu_r[Ind[i][j][k]];
				ka++;
			}
		}
		ia++;
		ii--;
	}
}

void calc_Hx_13(double ***Hx, double ***Ey, double ***Ez, double ***Bx_13, long  ***Ind, 
			    double *mu_r, double *K_Hx_c_1, double *K_Hx_d_1, double dtDIVdy, 
				double dtDIVdz, long  nPML_x_1, long  nPML_y_1, long  ny_MIN_1_MIN_nPML_y_2, 
				long  nPML_z_1, long  nz_MIN_1_MIN_nPML_z_2, double inv_TwoOREp0)
{
	long  i, j, k, ja, ka;
	double Bx_r;

	//13
	for (i = 0; i < nPML_x_1; i++)
	{	
		ja = 0;
		for (j = nPML_y_1; j < ny_MIN_1_MIN_nPML_y_2; j++)
		{	
			ka = 0;
			for (k = nPML_z_1; k < nz_MIN_1_MIN_nPML_z_2; k++)
			{
				Bx_r = Bx_13[i][ja][ka];

				Bx_13[i][ja][ka] += ( (Ey[i][j][k+1] - Ey[i][j][k])*dtDIVdz -
							          (Ez[i][j+1][k] - Ez[i][j][k])*dtDIVdy );

				Hx[i][j][k] += inv_TwoOREp0*( K_Hx_c_1[i]*Bx_13[i][ja][ka] + 
							                  K_Hx_d_1[i]*Bx_r )/mu_r[Ind[i][j][k]];
				ka++;
			}
			ja++;
		}
	}
}

void calc_Hx_14(double ***Hx, double ***Ey, double ***Ez, long  ***Ind, double *mu_r, 
				double dtDIVMu0DIVdy, double dtDIVMu0DIVdz, long  nx_a, long  nx_b,
				long  ny_a, long  ny_b, long  nz_a, long  nz_b)
{
	long  i, j, k;
	
	//14 - Outside of the PML region
	for (i = nx_a; i < nx_b; i++)
	{
		for (j = ny_a; j < ny_b; j++)
		{	
			for (k = nz_a; k < nz_b; k++)
			{
                Hx[i][j][k] += ( (Ey[i][j][k+1] - Ey[i][j][k])*dtDIVMu0DIVdz -
			 	                 (Ez[i][j+1][k] - Ez[i][j][k])*dtDIVMu0DIVdy )/
				  			     mu_r[Ind[i][j][k]];
			}
		}
	}
}


void calc_Hx_15(double ***Hx, double ***Ey, double ***Ez, double ***Bx_15, long  ***Ind, 
			    double *mu_r, double *K_Hx_c_2, double *K_Hx_d_2, double dtDIVdy, 
				double dtDIVdz, long  nx_MIN_nPML_x_2, long  nx, long  nPML_y_1, 
				long  ny_MIN_1_MIN_nPML_y_2, long  nPML_z_1, long  nz_MIN_1_MIN_nPML_z_2,
			    long  nPML_x_2_MIN_1, double inv_TwoOREp0)
{
	long  i, j, k, ii, ia, ja, ka;
	double Bx_r;

	//15
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_nPML_x_2; i < nx; i++)
	{	
		ja = 0;

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