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Acoustic ultrasound diffreaction
Posted 2015年3月28日 GMT-4 18:28 Acoustics & Vibrations Version 4.3 0 Replies
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Believe me I wouldn't post this unless im about to give up, I tried dozens of dozen times with different modality for very long hours but I couldn't succeed. I'm relatively new on comsol and I need to build this model for my project:
I need to build Diffraction Grating DF for ultrasound with 0.4 mm pitch since I'm using lambda 0.4 mm. the wave should incident on the diffraction grating by angle 45 degree, then it should reflected by mirror behind the DG at any suitable distance. as a result the waves will come back and pass though the DG again to be detected by detector to see the maxima and minima. I've tried 2D and 3D in acoustic structure interaction>acoustic-solid interaction frequency domain.
every time I get error in computations, different errors! Mesh, boundaries, domains.. I lost my concentration.
The problem I have to finish my project in 2 weeks and Im very swamped by it.
Please any help will be highly appreciated and will save me. I know this model is not big deal for the experts but I have no enough time to keep tying.
thank you very much in advance.
Hello Jacob m
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