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standing wave
Posted 19 déc. 2016, 05:18 UTC−5 Acoustics & Vibrations, Computational Fluid Dynamics (CFD) Version 5.2 1 Reply
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hi all,
does anybody know how to generate a standing wave in comsol?
thanks
hamid
does anybody know how to generate a standing wave in comsol?
thanks
hamid
1 Reply Last Post 21 déc. 2016, 17:26 UTC−5
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Posted:
8 years ago
Hi Hamid,
This is the expression you need for the standing wave.
E0*(exp(-i*emw.k0*x)+exp(i*emw.k0*x)), E0 is the magnitude of the Electric field, i.e., E0= 1[V/m]. You should define it in the parameter.
Click on the physics, i.e, "Electromagnetic Waves, Frequency Domain." Then setting, and change the option from Full Wave into Scattering Wave. Finally, make the background electric field into "User defined," and add the expression into one of the three options (x,y, or z) based on the incident wave polarization.
This is the expression you need for the standing wave.
E0*(exp(-i*emw.k0*x)+exp(i*emw.k0*x)), E0 is the magnitude of the Electric field, i.e., E0= 1[V/m]. You should define it in the parameter.
Click on the physics, i.e, "Electromagnetic Waves, Frequency Domain." Then setting, and change the option from Full Wave into Scattering Wave. Finally, make the background electric field into "User defined," and add the expression into one of the three options (x,y, or z) based on the incident wave polarization.