http://www.k-wave.org/forum/topic/sound-propagation-through-walls-of-different-material Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 03:50:29 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/sound-propagation-through-walls-of-different-material#post-8127 Mon, 19 Apr 2021 13:54:12 +0000 Bradley Treeby 8127@http://www.k-wave.org/forum/ <p>Hi dimimyl,</p> <p>Hard to say without knowing the specifics. As long as you're using a sensible number of points per wavelength, the transmission coefficients calculated using k-Wave should be ok. Have you tried running a convergence test (using smaller dx and dt and checking you get the same answer)? You could also try setting up a 1D simulation for your material properties and comparing with the analytical solution for transmission through a layered medium.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/sound-propagation-through-walls-of-different-material#post-8113 Wed, 07 Apr 2021 08:39:33 +0000 dimimyl 8113@http://www.k-wave.org/forum/ <p>Hello,</p> <p>I' m working on a project about the propagation of sound waves of low frequency (50- 150 Hz) through walls of different density. During simulations the absorption of sound by a wall with thickness 1cm seems to be high. Although because of the small thickness of the wall and the low frequency of the sound wave, i would expect almost no absorption or reflection effects. In order to simulate the wall i change the medium density and the sound speed in that area of the grid. Do yo have any suggestions in order to improve my simulations? </p>