http://www.k-wave.org/forum/topic/sound-propegation-in-rareify-gas-low-pressure-conditions Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 09:42:57 +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-propegation-in-rareify-gas-low-pressure-conditions#post-5333 Sat, 28 Nov 2015 12:31:42 +0000 tomk2006 5333@http://www.k-wave.org/forum/ <p>Thank you, I will use the k-Wave simulation to analyze a different part of my experiment. </p> http://www.k-wave.org/forum/topic/sound-propegation-in-rareify-gas-low-pressure-conditions#post-5325 Tue, 24 Nov 2015 15:36:47 +0000 Bradley Treeby 5325@http://www.k-wave.org/forum/ <p>Hi tomk2006,</p> <p>k-Wave solves a form of the conventional conservation equations derived assuming a continuum hypothesis. This won't apply in your case, and you'll instead need to look towards statistical mechanics and the kinetic theory of gases. I don't know much about this I'm afraid.</p> <p>Hope that helps,</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/sound-propegation-in-rareify-gas-low-pressure-conditions#post-5317 Mon, 23 Nov 2015 12:47:50 +0000 tomk2006 5317@http://www.k-wave.org/forum/ <p>Is the simulation equipped with tools to handle the conditions in which the mean free path of gas particles is the same order as the wavelength ? (knudsen number ~ 1)<br /> If so, how can I control the pressure in a homeganous medium to see the change in behaviour of the sound wave? </p>