http://www.k-wave.org/forum/topic/focused-beam-through-two-medium Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 03:43:14 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/focused-beam-through-two-medium#post-5002 Wed, 11 Mar 2015 09:57:26 +0000 Bradley Treeby 5002@http://www.k-wave.org/forum/ <p>Hi Laky,</p> <p>Yes this is certainly possible using k-Wave, and relatively easy to setup. The different materials are defined by assigning the sound speed and density as matrices the same size as your computational grid. A good place to start is to work through some of the k-Wave examples accessible through the MATLAB help browser, in particular the Initial Value Problems examples which explain how to setup a simulation with a heterogeneous medium.</p> <p>Keep in mind that k-Wave doesn't include any kind of electromechanical model of piezoelectricity - transducers are defined as mass (monopole) or force (dipole) sources, or as Dirichlet boundary conditions.</p> <p>Good luck with your simulations!</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/focused-beam-through-two-medium#post-4996 Wed, 25 Feb 2015 11:53:00 +0000 Laky 4996@http://www.k-wave.org/forum/ <p>Attached picture here:<br /> <a href="http://www.pixhost.org/show/2738/25162495_sim2.jpg" rel="nofollow">http://www.pixhost.org/show/2738/25162495_sim2.jpg</a> </p> http://www.k-wave.org/forum/topic/focused-beam-through-two-medium#post-4995 Wed, 25 Feb 2015 11:17:19 +0000 Laky 4995@http://www.k-wave.org/forum/ <p>Hi,</p> <p>I need to simulate focusing ultrasound beam to point through two medium. From transducer to lens throught medium 1 and then in medium 2 to point in medium 3 (see "picture" below).<br /> Is it possible to simulate this problem with K-Wave? </p> <p>Tahnk You,<br /> L.</p> <p>c1&lt;c2<br /> c2&gt;c3</p> <p>-------------------------------<br /> | piezo or transducer |<br /> -------------------------------</p> <p>|... medium 1 ...|<br /> | ... ... |<br /> | ... ... |<br /> | ...acoustic lens.. |<br /> | |<br /> | |<br /> | medium 2 |<br /> -------------------------------</p> <p> medium 3</p> <p> (*) focus </p>