Description: Description: soft source, 1D,absorbing boundary condition (which really only work for epsrel=murel=1), reflection at an interface type ward_fdtd1d to run. -Description : soft source, 1D. absorbing boundary condition (which really on ly work for murel epsrel = = 1) reflection at an interface to type ward_fdtd1d run. Platform: |
Size: 1715 |
Author:chunfenglay |
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Description: 很好用的利用吸收边界条件解决二维maxwell方程的时域有限差分法matlab源程序- The very easy to use use absorbs boundary condition solution
two-dimensional maxwell the equation the time domain finite difference
method matlab source program Platform: |
Size: 4096 |
Author:谭仁兵 |
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Description: ％ 本程序实现2维TM波FDTD仿真
％ 此程序用PML设置吸收边界条件
％ FDTD_2D_kongqi_PML
％ 仅喊有Ez,Hx,Hy分量- Of the procedures to achieve 2-D TM wave FDTD simulation this program set up with PML absorbing boundary condition FDTD_2D_kongqi_PML have only shout Ez, Hx, Hy component Platform: |
Size: 1024 |
Author:Dexin Wang |
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Description: Description: soft source, 1D,absorbing boundary condition (which really only work for epsrel=murel=1), reflection at an interface type ward_fdtd1d to run. -Description : soft source, 1D. absorbing boundary condition (which really on ly work for murel epsrel = = 1) reflection at an interface to type ward_fdtd1d run. Platform: |
Size: 1024 |
Author:chunfenglay |
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Description: 本程序实现2维TM波FDTD仿真,此程序用PML设置吸收边界条件-This procedure to achieve two-dimensional TM wave FDTD simulation, this procedure is set with the PML absorbing boundary condition Platform: |
Size: 1024 |
Author:黄嘉 |
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Description: DistMesh giving a singular FEM matrix?-Hi
Anyone here with some experience of using DistMesh in finite element code? I m solving the scalar Helmoltz equation in an annular region in 2D:
rho_1 < rho < rho_2
where rho_1 is the radius of a Perfect Electric Conducting cylinder and rho_2 is where the mesh is truncated using an Absorbing Boundary condition.
Now, I ve written code to mesh the region myself (by dividing the region into annular rings and picking a fixed number of points on each ring) and I ve written another program which uses DistMesh to mesh the region. I get a nice solution using my own meshing code but the FEM matrix becomes singular when I use DistMesh. This is the DistMesh Code I used:
Circle with hole
rABC=1.5
rCyl=0.5
fdstring=sprintf( ddiff(dcircle(p,0,0, f),dcircle(p,0,0, f)) ,rABC,rCyl)
fd=inline(fdstring, p )
box=[-2,-2 2,2]
[p,N]=distmesh2d(fd,@huniform,0.04,box,[])
I tried changing box and the 0.04 value (initial edge length). But every time, the matrix becomes sin Platform: |
Size: 37888 |
Author:skypigr |
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Description:
一个二维的FDTD程序
本程序实现2维TM波FDTD仿真
此程序用PML设置吸收边界条件
FDTD_2D_kongqi_PML
仅含有Ez,Hx,Hy分量
-A two-dimensional FDTD program program realization of the wave 2-D TM FDTD simulation this program set with the PML absorbing boundary condition FDTD_2D_kongqi_PML contain only Ez, Hx, Hy component Platform: |
Size: 172032 |
Author:w |
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Description: 用有限差分法的四阶差分格式模拟声波在二维均匀介质中的传播，不带吸收边界条件，震波是雷克子波-Finite difference method of fourth order difference scheme for two-dimensional simulation of acoustic wave propagation in uniform medium, without absorbing boundary condition, shock wave is Ricker Platform: |
Size: 1024 |
Author:hongfengjinran |
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Description: 一维情况下用ＦＤＴＤ方法模拟电磁波的传播情况，加了吸收边界条件，用Ｃ和MATLAB混合编程，信号源是高斯脉冲-One-Dimensional FDTD simulation with the propagation of electromagnetic waves, plus the absorbing boundary condition, mixed with the C and MATLAB programming, the signal source is a Gaussian pulse Platform: |
Size: 1024 |
Author:赵冉 |
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Description: 二维情况下用ＦＤＴＤ方法模拟电磁波的传播情况，没加吸收边界条件，用Ｃ和MATLAB混合编程，信号源是高斯脉冲-Two-dimensional case with the FDTD simulation of electromagnetic wave propagation, no additional absorbing boundary condition, mixed with the C and MATLAB programming, the signal source is a Gaussian pulse Platform: |
Size: 1024 |
Author:赵冉 |
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Description: MATLAB code to implement PML as an absorbing boundary condition in 2D FDTD of TMz mode propagation of EM wave. This program work for any rectangular problem space at PML of specified dimension with same or different step size in x and y-direction Platform: |
Size: 2035 |
Author:ibror9 |
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