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📄 fdtd_3d_pml_hz.cpp

📁 采用UMPL边界的FDTD编程
💻 CPP
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#include "FDTD_3D_PML_Hz.h"

///////////////////////////////////////////////////////////////////////////////////////
//Calculate Hz field
///////////////////////////////////////////////////////////////////////////////////////
void CFDTD_3D_PML::calc_Hz_1()
{
	long  i, j, k;
	double Bz_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++)
			{
				Bz_r = Bz_1[i][j][k];

				Bz_1[i][j][k] = K_Bz_a_1[i]*Bz_1[i][j][k] +  
					            K_Bz_b_1[i]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                          (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] = K_Hz_a_1[j]*Hz[i][j][k] + 
					          K_Hz_b_1[j]*( K_Hz_c_1[k]*Bz_1[i][j][k] + 
							                K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hz_2()
{
	long  i, j, k, ia;
	double Bz_r;

	//2
	ia = 0;
	for (i = nPML_x_1; i < nx_MIN_1_MIN_nPML_x_2; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bz_r = Bz_2[ia][j][k];

				Bz_2[ia][j][k] += ( (Ex[i][j+1][k] - Ex[i][j][k])*dtDIVdy - 
					                (Ey[i+1][j][k] - Ey[i][j][k])*dtDIVdx );

				Hz[i][j][k] = K_Hz_a_1[j]*Hz[i][j][k] + 
					          K_Hz_b_1[j]*( K_Hz_c_1[k]*Bz_2[ia][j][k] + 
							                K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
		}
		ia++;
	}
}

void CFDTD_3D_PML::calc_Hz_3()
{
	long  i, j, k, ia, ii;
	double Bz_r;

	//3
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_1_MIN_nPML_x_2; i < nx_MIN_1; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Bz_r = Bz_3[ia][j][k];

				Bz_3[ia][j][k] = K_Bz_a_2[ii]*Bz_3[ia][j][k] +  
					             K_Bz_b_2[ii]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                            (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] = K_Hz_a_1[j]*Hz[i][j][k] + 
					          K_Hz_b_1[j]*( K_Hz_c_1[k]*Bz_3[ia][j][k] + 
							                K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hz_4()
{
	long  i, j, k, ja;
	double Bz_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++)
			{
				Bz_r = Bz_4[i][ja][k];

				Bz_4[i][ja][k] = K_Bz_a_1[i]*Bz_4[i][ja][k] +  
					             K_Bz_b_1[i]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                           (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] += inv_TwoOREp0*( K_Hz_c_1[k]*Bz_4[i][ja][k] + 
							                  K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
		}
	}
}

void CFDTD_3D_PML::calc_Hz_5()
{
	long  i, j, k, ia, ja;
	double Bz_r;

	//5
	ia = 0;
	for (i = nPML_x_1; i < nx_MIN_1_MIN_nPML_x_2; 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++)
			{
				Bz_r = Bz_5[ia][ja][k];

				Bz_5[ia][ja][k] += ( (Ex[i][j+1][k] - Ex[i][j][k])*dtDIVdy - 
					                 (Ey[i+1][j][k] - Ey[i][j][k])*dtDIVdx );

				Hz[i][j][k] += inv_TwoOREp0*( K_Hz_c_1[k]*Bz_5[ia][ja][k] + 
							                  K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
		}
		ia++;
	}
}

void CFDTD_3D_PML::calc_Hz_6()
{
	long  i, j, k, ia, ja, ii;
	double Bz_r;

	//6
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_1_MIN_nPML_x_2; i < nx_MIN_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++)
			{
				Bz_r = Bz_6[ia][ja][k];

				Bz_6[ia][ja][k] = K_Bz_a_2[ii]*Bz_6[ia][ja][k] +  
					              K_Bz_b_2[ii]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                             (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] += inv_TwoOREp0*( K_Hz_c_1[k]*Bz_6[ia][ja][k] + 
							                  K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hz_7()
{
	long  i, j, k, ja, jj;
	double Bz_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++)
			{
				Bz_r = Bz_7[i][ja][k];

				Bz_7[i][ja][k] = K_Bz_a_1[i]*Bz_7[i][ja][k] +  
					             K_Bz_b_1[i]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                           (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] = K_Hz_a_2[jj]*Hz[i][j][k] + 
					          K_Hz_b_2[jj]*( K_Hz_c_1[k]*Bz_7[i][ja][k] + 
							                 K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
			jj--;
		}
	}
}

void CFDTD_3D_PML::calc_Hz_8()
{
	long  i, j, k, ia, ja, jj;
	double Bz_r;

	//8
	ia = 0;
	for (i = nPML_x_1; i < nx_MIN_1_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++)
			{
				Bz_r = Bz_8[ia][ja][k];

				Bz_8[ia][ja][k] += ( (Ex[i][j+1][k] - Ex[i][j][k])*dtDIVdy - 
					                 (Ey[i+1][j][k] - Ey[i][j][k])*dtDIVdx );

				Hz[i][j][k] = K_Hz_a_2[jj]*Hz[i][j][k] + 
					          K_Hz_b_2[jj]*( K_Hz_c_1[k]*Bz_8[ia][ja][k] + 
							                 K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
			jj--;
		}
		ia++;
	}
}

void CFDTD_3D_PML::calc_Hz_9()
{
	long  i, j, k, ia, ja, ii, jj;
	double Bz_r;

	//9
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_1_MIN_nPML_x_2; i < nx_MIN_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++)
			{
				Bz_r = Bz_9[ia][ja][k];

				Bz_9[ia][ja][k] = K_Bz_a_2[ii]*Bz_9[ia][ja][k] +  
					              K_Bz_b_2[ii]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                             (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] = K_Hz_a_2[jj]*Hz[i][j][k] + 
					          K_Hz_b_2[jj]*( K_Hz_c_1[k]*Bz_9[ia][ja][k] + 
							                 K_Hz_d_1[k]*Bz_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
			jj--;
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hz_10()
{
	long  i, j, k, ka;
	double Bz_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_nPML_z_2; k++)
			{
				Bz_r = Bz_10[i][j][ka];

				Bz_10[i][j][ka] = K_Bz_a_1[i]*Bz_10[i][j][ka] +  
					              K_Bz_b_1[i]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                            (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] = K_Hz_a_1[j]*Hz[i][j][k] + 
					          K_Hz_b_1[j]*TwoOREp0DIVMu0*( Bz_10[i][j][ka] - Bz_r )/Mat[Ind[i][j][k]][1];
				ka++;
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hz_11()
{
	long  i, j, k;
	
	//11
	for (i = nPML_x_1; i < nx_MIN_1_MIN_nPML_x_2; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			for (k = nPML_z_1; k < nz_MIN_nPML_z_2; k++)
			{
				Hz[i][j][k] = K_Hz_a_1[j]*Hz[i][j][k] + K_Hz_b_1[j]/Mat[Ind[i][j][k]][1]*
							  ( (Ex[i][j+1][k] - Ex[i][j][k])*TwoOREp0DIVMu0ORdtDIVdy - 
					            (Ey[i+1][j][k] - Ey[i][j][k])*TwoOREp0DIVMu0ORdtDIVdx );
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hz_12()
{
	long  i, j, k, ia, ka, ii;
	double Bz_r;

	//12
	ia = 0;
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_1_MIN_nPML_x_2; i < nx_MIN_1; i++)
	{	
		for (j = 0; j < nPML_y_1; j++)
		{	
			ka = 0;
			for (k = nPML_z_1; k < nz_MIN_nPML_z_2; k++)
			{
				Bz_r = Bz_12[ia][j][ka];

				Bz_12[ia][j][ka] = K_Bz_a_2[ii]*Bz_12[ia][j][ka] +  
					               K_Bz_b_2[ii]*( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dy - 
					                              (Ey[i+1][j][k] - Ey[i][j][k])*inv_dx );

				Hz[i][j][k] = K_Hz_a_1[j]*Hz[i][j][k] + 
					          K_Hz_b_1[j]*TwoOREp0DIVMu0*( Bz_12[ia][j][ka] - Bz_r )/Mat[Ind[i][j][k]][1];
				ka++;
			}
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hz_13()
{
	long  i, j, k;
	
	//13
	for (i = 0; i < nPML_x_1; i++)
	{	
		for (j = nPML_y_1; j < ny_MIN_1_MIN_nPML_y_2; j++)
		{	
			for (k = nPML_z_1; k < nz_MIN_nPML_z_2; k++)
			{
				Hz[i][j][k] = K_Bz_a_1[i]*Hz[i][j][k] + K_Bz_b_1[i]/Mat[Ind[i][j][k]][1]*
							      ( (Ex[i][j+1][k] - Ex[i][j][k])*inv_dyORmu_0 - 
				                    (Ey[i+1][j][k] - Ey[i][j][k])*inv_dxORmu_0 );
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hz_14(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++)
			{
				Hz[i][j][k] += ( (Ex[i][j+1][k] - Ex[i][j][k])*dtDIVMu0DIVdy - 
				                 (Ey[i+1][j][k] - Ey[i][j][k])*dtDIVMu0DIVdx )/Mat[Ind[i][j][k]][1];
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hz_15()
{
	long  i, j, k, ii;
	
	//15
	ii = nPML_x_2_MIN_1;
	for (i = nx_MIN_1_MIN_nPML_x_2; i < nx_MIN_1; i++)
	{	
		for (j = nPML_y_1; j < ny_MIN_1_MIN_nPML_y_2; j++)
		{	
			for (k = nPML_z_1; k < nz_MIN_nPML_z_2; k++)
			{

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