acosutic wave FDTD in heterogenous medium

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ravishankarv

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Dear all, I have written a code in Matlab for 2D acoustic FDTD. I have written this for a homogeneous medium (constant density). How do I extend this to medium heterogenous in density? Does anyone have a matlab code which accomplishes this?

Could you please help me out?

Thanks,
Rav
 

Dear all, I have written a code for phononic 2d structure. I have used kronecker delta as source. Here kronecker delta is represented as nine zeros followed by 10e-6 and then 1250 zeros. The signal gives a frequency range from zero to 30 MHz. But my region of interest is in kHz. What modification should i do in kronecker delta to get source in kHz range
 
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    maps97

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