http://www.k-wave.org/forum/topic/sound-radiation-from-moving-surface Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 15:50:14 +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-radiation-from-moving-surface#post-6095 Sun, 06 Aug 2017 14:38:58 +0000 Bradley Treeby 6095@http://www.k-wave.org/forum/ <p>Hi ccueto,</p> <p>The most straightforward way is use a time varying source (e.g., velocity source). You can define the radiating surface as a complete plane, and then specify the velocity at each voxel using <code>source.ux</code> etc. If you want to apply this as a boundary condition, set <code>source.u_mode = &#39;dirichlet&#39;</code>. There is some more information on how to use time varying sources in the k-Wave manual and the examples included in the toolbox (accessible via the MATLAB help browser). Let us know if you get stuck on something.</p> <p>Brad </p> http://www.k-wave.org/forum/topic/sound-radiation-from-moving-surface#post-6086 Thu, 03 Aug 2017 13:26:10 +0000 ccueto 6086@http://www.k-wave.org/forum/ <p>Hi! </p> <p>I'm trying to model the radiation of sound produced by the movement of a surface within a fluid medium when this movement is non-harmonic, non-periodic and non-uniform over the surface.</p> <p>I've been reading the documentation and the forum trying to understand whether k-Wave would be able to help me simulate this, but I'm not sure how to apply this boundary condition on the surface.</p> <p>I've seen on another post that I could tinker with the simulation functions to set the normal velocity at the surface to the needed values, but I'm not sure this would work.</p> <p>Would anyone have any idea about how I could go about this?</p> <p>Thanks! </p>