http://www.k-wave.org/forum/topic/shifted-focal-point-in-nonlinear-simulation Support for the k-Wave MATLAB toolbox en-US Fri, 05 Jun 2026 12:41:18 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/shifted-focal-point-in-nonlinear-simulation#post-9251 Thu, 04 Jun 2026 08:34:19 +0000 tripsi 9251@http://www.k-wave.org/forum/ <p>Hi,</p> <p>I am trying to validate my nonlinear simulation by comparing it to one of your papers. The simulation models the transducer as an arc of radius of curvature 98mm and aperture diameter of 64mm. I use a sinusoidal source pulse of 4 oscillation that is tapered by a tukey window. Its amplitude is 1.6e5Pa.<br /> My simulation then produces a focal point at around 114mm. It don't understand why this happens.<br /> Do you have any ideas what the problem might be?</p> <p>Thanks! </p>