「ITRI-NTU 3D-FDTD」：修訂間差異
跳至導覽
跳至搜尋
| （未顯示同一使用者於中間所作的 36 次修訂） | |||
| 第1行： | 第1行： | ||
3D-FDTD is | 3D-FDTD is called from three dimensional finite difference time domain method. This program models computational electrodynamics which is refer to the book ''Computational Electrodynamics: The Finite-Difference Time-Domain Method, Third Edition, by Allen Taflove''. | ||
== Input file 1: parameters | == Input file 1: commands and parameters == | ||
<font size=3 color=red>'''Be careful:'''</font> Although most sequences of functions are not important, the function [[$NumberofObject]] '''MUST''' appear before the function [[$MaterialStructure]] and [[$MaterialParameter]]. | <font size=3 color=red>'''Be careful:'''</font> Although most sequences of functions are not important, the function [[$NumberofObject]] '''MUST''' appear before the function [[$MaterialStructure]] and [[$MaterialParameter]]. | ||
| 第13行： | 第13行： | ||
[[$OutputMaxReflection]]<br> | [[$OutputMaxReflection]]<br> | ||
=== Unit setting === | |||
[[$UnitConvert]]<br> | |||
| 第19行： | 第23行： | ||
[[$OutputStep]]<br> | [[$OutputStep]]<br> | ||
[[$StopCriteria]]<br> | |||
| 第31行： | 第37行： | ||
[[$PMLlayer]]<br> | [[$PMLlayer]]<br> | ||
=== Source setting === | === Source setting === | ||
[[$SourceType]]<br> | [[$SourceType]]<br> | ||
[[$SourceAmp]]<br> | |||
[[$SourcePosition]]<br> | [[$SourcePosition]]<br> | ||
| 第47行： | 第56行： | ||
[[$MaterialParameter]]<br> | [[$MaterialParameter]]<br> | ||
== Input file 2: parameters | |||
=== Near-to-Far-Field setting === | |||
[[$NTFFposition]]<br> | |||
[[$NTFFparameter]]<br> | |||
=== Generation setting === | |||
[[$DFTallField]]<br> | |||
[[$CalGeneration]]<br> | |||
=== Gmsh setting === | |||
[[$UseGmsh]]<br> | |||
[[$GmshTag]]<br> | |||
For more information about Gmsh, see [http://gmsh.info/doc/texinfo/gmsh.html#MSH-file-format-version-2-_0028Legacy_0029 <i> Gmsh website</i>]. <br><br><br> | |||
== Input file 2: commands and parameters == | |||
'''Note:''' You can run the FDTD program '''WITHOUT''' the input file 2. However, if using this, you should really know the meaning of each function and parameter; otherwise, the program may not execute correctly as you change any default parameter. | '''Note:''' You can run the FDTD program '''WITHOUT''' the input file 2. However, if using this, you should really know the meaning of each function and parameter; otherwise, the program may not execute correctly as you change any default parameter. | ||
| 第69行： | 第98行： | ||
[[$IncCPMLpar]] | [[$IncCPMLpar]] | ||
[[$Output1Dincident]] | [[$Output1Dincident]]<br> | ||
== The format of output files == | == The format of output files == | ||
These pages present text format. | These pages present text format. <br> | ||
''XX'' means it could be ''Ex'', ''Ey'', ''Ez'', ''Hx'', ''Hy'', or ''Hz''. <br> | |||
And ''n'' represents the time step. <br> | |||
''ii'' is ii-th file. <br> | |||
=== Setting results === | === Setting results === | ||
[[.gn]] | [[*.gn]] | ||
[[.ind]] | [[*.ind]] | ||
[[.XX.ps]] | [[*.XX.ps]] | ||
[[.fld.par]] | [[*.fld.par]] | ||
[[.pml.par]] | [[*.pml.par]] | ||
[[.typ.par]] | [[*.typ.par]] | ||
[[.so.time]] | [[*.so.time]] | ||
[[.so.freq]] | [[*.so.freq]] | ||
[[*.ntff.par]] | |||
[[*.dft.par]] | |||
=== Results at certain time step (n)=== | === Results at certain time step (n)=== | ||
[[.step-n.XX.dat]] | [[*.step-n.XX.dat]] | ||
[[*.step-n.inc.dat]] | |||
[[*.step-n.XX.dft]] | |||
[[*.refl]] | |||
=== Results after time-stepping === | |||
[[*.rcs]] | |||
[[. | [[*.gen]] | ||
[[. | [[*.f-ii.ggen]] | ||
== The meaning of the parameters in source codes == | == The meaning of the parameters in source codes == | ||
於 2021年1月28日 (四) 07:33 的最新修訂
3D-FDTD is called from three dimensional finite difference time domain method. This program models computational electrodynamics which is refer to the book Computational Electrodynamics: The Finite-Difference Time-Domain Method, Third Edition, by Allen Taflove.
Input file 1: commands and parameters
Be careful: Although most sequences of functions are not important, the function $NumberofObject MUST appear before the function $MaterialStructure and $MaterialParameter.
Files setting
Unit setting
Time setting
Space setting
Source setting
Material setting
Near-to-Far-Field setting
Generation setting
Gmsh setting
For more information about Gmsh, see Gmsh website.
Input file 2: commands and parameters
Note: You can run the FDTD program WITHOUT the input file 2. However, if using this, you should really know the meaning of each function and parameter; otherwise, the program may not execute correctly as you change any default parameter.
The format of output files
These pages present text format.
XX means it could be Ex, Ey, Ez, Hx, Hy, or Hz.
And n represents the time step.
ii is ii-th file.