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How to set the direction of an incident wave?
Posted 2010年10月8日 GMT-4 04:38 4 Replies
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Hello,
I am a beginner in Comsol .I don't know how to set the direction of an incident wave and I am looking forward eagerly to someone who can help me.
In comsol 4.0a ,the default direction of the incident wave is expressed by "-temw.nx,-temw.ny".What do these symbols mean?If I want to re-set the direction, what format should I follow ?
Thank you very much!
4 Replies Last Post 2010年11月3日 GMT-4 02:43
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Posted:
1 decade ago
If you are using scattering boundary, then direction is represented by k. such as under menu for k, z=-1 means wave is propagating towards -ve Z direction and set x,y=0. you can have Ex=1 or Ey=1 for plane wave. I think this setting is a good start for you, and you can play along.
Irfan
Irfan
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Posted:
1 decade ago
Thank you very much for your help!
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Posted:
1 decade ago
Hello,
Can you please let me know how to set the beam at an angle to say x axis?
Your help would be appreciated.
Thank you
Can you please let me know how to set the beam at an angle to say x axis?
Your help would be appreciated.
Thank you
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hello,
Can you please let me know how to set the beam at an angle to say x axis?
Your help would be appreciated.
Thank you
[/QUOTE
first, you can define a constant theta,in boudary condition,if in a 2D model,there are two blank positions in wave direction k, you write down k0_...*cos(theta) and k0-...*cos(theta),theta is the angle of incident wave, "..." is standed for diffirencent application mode.