http://www.k-wave.org/forum/topic/simulation-of-horn-type-transducer Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 09:44:19 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/simulation-of-horn-type-transducer#post-5386 Tue, 16 Feb 2016 02:10:20 +0000 Bradley Treeby 5386@http://www.k-wave.org/forum/ <p>Hi Rth,</p> <p>It's possible in k-Wave to define an arbitrary distribution of sound speed and density, with the restriction that it must lie on a uniform Cartesian grid. Thus, if you can represent your geometry using a matrix, then it should be straightforward to run a k-Wave simulation. However, it's worth noting that you will need to use a sufficient number of grid points per acoustic wavelength to ensure you avoid staircasing errors. It's also not currently possibly to explicitly define boundary conditions. If this is something you need to do, you might want to look at tools based on other numerical methods, for example, the boundary element method (for a homogeneous propagation medium with boundaries), or the finite element method (which allows an unstructured mesh).</p> <p>Hope that helps,</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/simulation-of-horn-type-transducer#post-5366 Thu, 21 Jan 2016 16:17:48 +0000 Rth 5366@http://www.k-wave.org/forum/ <p>Hello,</p> <p>I'm trying to get to know k-wave and its possibilities, and now I would like to simulate/visualise the redistribution of acoustic energy of a horn-type piezoelectric transducer. What would be the best way to go about that? Basically, the "Diffraction Through a Slit" example seems like a good start. However, how should i simulate the propagation of the acoustic waves through much more complex topologies. eg. Convex, concave, mix of both, ... etc.</p> <p>Example of horn-type transducer:</p> <p>[img="http://www.ultrasonicweldingtransducer.com/photo/pl10673665-steel_horn_welding_ultrasonic_piezo_transducer_for_tea_bag_packing_machine.jpg"/] </p>