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📄 fdtd_3d_pml_hy.cpp

📁 采用UMPL边界的FDTD编程
💻 CPP
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#include "FDTD_3D_PML_Hy.h"

///////////////////////////////////////////////////////////////////////////////////////
//Calculate Hy field
///////////////////////////////////////////////////////////////////////////////////////
void CFDTD_3D_PML::calc_Hy_1()
{
	long  i, j, k;
	double By_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++)
			{
				By_r = By_1[i][j][k];

				By_1[i][j][k] = K_By_a_1[k]*By_1[i][j][k] +
					            K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								              (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] = K_Hy_a_1[i]*Hy[i][j][k] + 
					          K_Hy_b_1[i]*( K_Hy_c_1[j]*By_1[i][j][k] + 
							                K_Hy_d_1[j]*By_r )/Mat[Ind[i][j][k]][1];
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hy_2()
{
	long  i, j, k, ia;
	double By_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++)
			{
				By_r = By_2[ia][j][k];

				By_2[ia][j][k] = K_By_a_1[k]*By_2[ia][j][k] +
					             K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								               (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] += inv_TwoOREp0*( K_Hy_c_1[j]*By_2[ia][j][k] + 
							                  K_Hy_d_1[j]*By_r )/Mat[Ind[i][j][k]][1];
			}
		}
		ia++;
	}
}

void CFDTD_3D_PML::calc_Hy_3()
{
	long  i, j, k, ia, ii;
	double By_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++)
			{
				By_r = By_3[ia][j][k];

				By_3[ia][j][k] = K_By_a_1[k]*By_3[ia][j][k] +
					             K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								               (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] = K_Hy_a_2[ii]*Hy[i][j][k] + 
					          K_Hy_b_2[ii]*( K_Hy_c_1[j]*By_3[ia][j][k] + 
							                 K_Hy_d_1[j]*By_r )/Mat[Ind[i][j][k]][1];
			}
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hy_4()
{
	long  i, j, k, ja;
	double By_r;

	//4
	for (i = 0; i < nPML_x_1; i++)
	{	
		ja = 0;
		for (j = nPML_y_1; j < ny_MIN_nPML_y_2; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				By_r = By_4[i][ja][k];

				By_4[i][ja][k] = K_By_a_1[k]*By_4[i][ja][k] +
					             K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								               (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] = K_Hy_a_1[i]*Hy[i][j][k] + 
					          K_Hy_b_1[i]*TwoOREp0DIVMu0*( By_4[i][ja][k] - By_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
		}
	}
}

void CFDTD_3D_PML::calc_Hy_5()
{
	long  i, j, k;
	
	//5
	for (i = nPML_x_1; i < nx_MIN_1_MIN_nPML_x_2; i++)
	{	
		for (j = nPML_y_1; j < ny_MIN_nPML_y_2; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				Hy[i][j][k] = K_By_a_1[k]*Hy[i][j][k] +
					          K_By_b_1[k]/Mat[Ind[i][j][k]][1]*
							         ( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dxORmu_0 -
							           (Ex[i][j][k+1] - Ex[i][j][k])*inv_dzORmu_0 );
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hy_6()
{
	long  i, j, k, ia, ja, ii;
	double By_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_nPML_y_2; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				By_r = By_6[ia][ja][k];

				By_6[ia][ja][k] = K_By_a_1[k]*By_6[ia][ja][k] +
					              K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								                (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] = K_Hy_a_2[ii]*Hy[i][j][k] + 
					          K_Hy_b_2[ii]*TwoOREp0DIVMu0*( By_6[ia][ja][k] - By_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hy_7()
{
	long  i, j, k, ja, jj;
	double By_r;

	//7
	for (i = 0; i < nPML_x_1; i++)
	{	
		ja = 0;
		jj = nPML_y_2_MIN_1;
		for (j = ny_MIN_nPML_y_2; j < ny; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				By_r = By_7[i][ja][k];

				By_7[i][ja][k] = K_By_a_1[k]*By_7[i][ja][k] +
					             K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								               (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] = K_Hy_a_1[i]*Hy[i][j][k] + 
					          K_Hy_b_1[i]*( K_Hy_c_2[jj]*By_7[i][ja][k] + 
							                K_Hy_d_2[jj]*By_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
			jj--;
		}
	}
}

void CFDTD_3D_PML::calc_Hy_8()
{
	long  i, j, k, ia, ja, jj;
	
	double By_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_nPML_y_2; j < ny; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				By_r = By_8[ia][ja][k];

				By_8[ia][ja][k] = K_By_a_1[k]*By_8[ia][ja][k] +
					              K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								                (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] += inv_TwoOREp0*( K_Hy_c_2[jj]*By_8[ia][ja][k] + 
							                  K_Hy_d_2[jj]*By_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
			jj--;
		}
		ia++;
	}
}

void CFDTD_3D_PML::calc_Hy_9()
{
	long  i, j, k, ia, ja, ii, jj;
	double By_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_nPML_y_2; j < ny; j++)
		{	
			for (k = 0; k < nPML_z_1; k++)
			{
				By_r = By_9[ia][ja][k];

				By_9[ia][ja][k] = K_By_a_1[k]*By_9[ia][ja][k] +
					              K_By_b_1[k]*( (Ez[i+1][j][k] - Ez[i][j][k])*inv_dx -
								                (Ex[i][j][k+1] - Ex[i][j][k])*inv_dz );
				
				Hy[i][j][k] = K_Hy_a_2[ii]*Hy[i][j][k] + 
					          K_Hy_b_2[ii]*( K_Hy_c_2[jj]*By_9[ia][ja][k] + 
							                 K_Hy_d_2[jj]*By_r )/Mat[Ind[i][j][k]][1];
			}
			ja++;
			jj--;
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hy_10()
{
	long  i, j, k, ka;
	double By_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++)
			{
				By_r = By_10[i][j][ka];

				By_10[i][j][ka] +=  ( (Ez[i+1][j][k] - Ez[i][j][k])*dtDIVdx -
								      (Ex[i][j][k+1] - Ex[i][j][k])*dtDIVdz );
				
				Hy[i][j][k] = K_Hy_a_1[i]*Hy[i][j][k] + 
					          K_Hy_b_1[i]*( K_Hy_c_1[j]*By_10[i][j][ka] + 
							                K_Hy_d_1[j]*By_r )/Mat[Ind[i][j][k]][1];
				ka++;
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hy_11()
{
	long  i, j, k, ia, ka;
	double By_r;

	//11
	ia = 0;
	for (i = nPML_x_1; i < nx_MIN_1_MIN_nPML_x_2; 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++)
			{
				By_r = By_11[ia][j][ka];

				By_11[ia][j][ka] +=  ( (Ez[i+1][j][k] - Ez[i][j][k])*dtDIVdx -
								       (Ex[i][j][k+1] - Ex[i][j][k])*dtDIVdz );
				
				Hy[i][j][k] += inv_TwoOREp0*( K_Hy_c_1[j]*By_11[ia][j][ka] + 
							                  K_Hy_d_1[j]*By_r )/Mat[Ind[i][j][k]][1];
				ka++;
			}
		}
		ia++;
	}
}

void CFDTD_3D_PML::calc_Hy_12()
{
	long  i, j, k, ia, ka, ii;
	double By_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_1_MIN_nPML_z_2; k++)
			{
				By_r = By_12[ia][j][ka];

				By_12[ia][j][ka] +=  ( (Ez[i+1][j][k] - Ez[i][j][k])*dtDIVdx -
								       (Ex[i][j][k+1] - Ex[i][j][k])*dtDIVdz );
				
				Hy[i][j][k] = K_Hy_a_2[ii]*Hy[i][j][k] + 
					          K_Hy_b_2[ii]*( K_Hy_c_1[j]*By_12[ia][j][ka] + 
							                 K_Hy_d_1[j]*By_r )/Mat[Ind[i][j][k]][1];
				ka++;
			}
		}
		ia++;
		ii--;
	}
}

void CFDTD_3D_PML::calc_Hy_13()
{
	long  i, j, k;
	
	//13
	for (i = 0; i < nPML_x_1; i++)
	{	
		for (j = nPML_y_1; j < ny_MIN_nPML_y_2; j++)
		{	
			for (k = nPML_z_1; k < nz_MIN_1_MIN_nPML_z_2; k++)
			{
				Hy[i][j][k] = K_Hy_a_1[i]*Hy[i][j][k] + K_Hy_b_1[i]/Mat[Ind[i][j][k]][1]*
							     ( (Ez[i+1][j][k] - Ez[i][j][k])*TwoOREp0DIVMu0ORdtDIVdx -
								   (Ex[i][j][k+1] - Ex[i][j][k])*TwoOREp0DIVMu0ORdtDIVdz );
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hy_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++)
			{
				Hy[i][j][k] += ( (Ez[i+1][j][k] - Ez[i][j][k])*dtDIVMu0DIVdx -
							     (Ex[i][j][k+1] - Ex[i][j][k])*dtDIVMu0DIVdz )/Mat[Ind[i][j][k]][1];
			}
		}
	}
}

void CFDTD_3D_PML::calc_Hy_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_nPML_y_2; j++)
		{	
			for (k = nPML_z_1; k < nz_MIN_1_MIN_nPML_z_2; k++)

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