http://www.k-wave.org/forum/topic/ultrasonic-propagation-simulation Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 13:21:50 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/ultrasonic-propagation-simulation#post-7009 Thu, 22 Aug 2019 17:17:08 +0000 Bradley Treeby 7009@http://www.k-wave.org/forum/ <p>Hi zhw198202,</p> <p>1. The focal position (position of peak pressure) will depend on both the source geometry and diffraction. If you get a good acoustics textbook (e.g., Cobbold, Foundations of Biomedical Ultrasound) you should find descriptions and formulae.</p> <p>2. In this example, the source is in the fluid, so only compressional waves are supported. For solid media, you can specify all of the components of the stress, or alternatively, use a velocity source as in the Plane Wave Absorption Example.</p> <p>3. I'm not sure I follow your question I'm afraid. If you read the earlier examples, there is a description of how to define the positions of the sources and sensors.</p> <p>Brad </p> http://www.k-wave.org/forum/topic/ultrasonic-propagation-simulation#post-6987 Mon, 29 Jul 2019 03:36:09 +0000 zhw198202 6987@http://www.k-wave.org/forum/ <p>Hello, regarding your program "Shear Waves And Critical Angle Reflection Example", I have a few questions I would like to ask you:<br /> 1. The focus of the arc source is set by itself or by the software itself. Why can I see the focus point by using a straight line source?<br /> 2. I want to simulate the waveform conversion of ultrasonic waves on a heterogeneous interface. How do I specify a sound wave as a transverse wave or a longitudinal wave?<br /> 3. What if I want to add an ultrasonic transducer to the outside of the sound field?<br /> Looking forward to your answer! </p>