http://www.k-wave.org/forum/topic/heterogeneous-medium-surface-normals Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 00:22:37 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/heterogeneous-medium-surface-normals#post-1074 Sun, 25 Nov 2012 22:17:04 +0000 Bradley Treeby 1074@http://www.k-wave.org/forum/ <p>Hi Juan,</p> <p>You could certainly model a lens in this way using k-Wave. However, keep in mind that k-Wave only models compressional waves (it assumes the medium is a fluid), so your simulation will not include the effects of shear waves in the lens. If you think this is important, you could also look at some of the other packages listed <a href="http://www.k-wave.org/acousticsoftware.php">here</a>.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/heterogeneous-medium-surface-normals#post-1072 Sun, 25 Nov 2012 10:06:27 +0000 Juan Aguirre Bueno 1072@http://www.k-wave.org/forum/ <p>Hi Bradley. Thanks for such a quick answer.</p> <p>Do you think that k-Wave is suitable for simulating plano concave acoustic aluminium lenses just by creating a medium in the region defined by the lense with the acoustic properties of aluminium a by placing the detectors (or sources) in the plane side of the lense?</p> <p>Thanks again</p> <p>Juan </p> http://www.k-wave.org/forum/topic/heterogeneous-medium-surface-normals#post-1071 Sun, 25 Nov 2012 01:18:42 +0000 Bradley Treeby 1071@http://www.k-wave.org/forum/ <p>Hi Juan,</p> <p>The medium properties are simply defined as a matrices, so it is possible to define any shape of heterogeneous interface. There are some details in <a href="http://www.k-wave.org/forum/topic/how-to-rotate-arc-circle-source">this topic</a> about creating a triangular interface. However, be aware that if your source frequency is close to the Nyquist limit, you may see some staircasing errors due to the way the interface is discretised/defined.</p> <p>Hope that helps - good luck with your simulations.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/heterogeneous-medium-surface-normals#post-1067 Sat, 24 Nov 2012 17:05:29 +0000 Juan Aguirre Bueno 1067@http://www.k-wave.org/forum/ <p>Hello Guys.</p> <p>Let me first thank you for releasing such a nice and handy simulation tool.</p> <p>My question is the following:</p> <p>When simulating a two layered medium, is it posible to define o non "straight line" boundary between the two media, and take into account different surface normals for calculating the snells law?</p> <p>Thank you very much in advance</p> <p>Juan </p>