http://www.k-wave.org/forum/topic/1d-vs-2d-simulations Support for the k-Wave MATLAB toolbox en-US Tue, 12 May 2026 23:39:15 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/1d-vs-2d-simulations#post-7428 Tue, 21 Apr 2020 09:54:27 +0000 Anastasiia 7428@http://www.k-wave.org/forum/ <p>Thanks you, Bradley. </p> http://www.k-wave.org/forum/topic/1d-vs-2d-simulations#post-7408 Fri, 17 Apr 2020 16:35:47 +0000 Bradley Treeby 7408@http://www.k-wave.org/forum/ <p>Hi Anastasiia,</p> <p>There is no function. However, if you setup an velocity source that covers the whole grid (including within the PML), this will create a plane wave. There is an example in the <a href="http://www.k-wave.org/documentation/example_tvsp_slit_diffraction.php">Diffraction Through A Slit Example</a>.</p> <p>Brad </p> http://www.k-wave.org/forum/topic/1d-vs-2d-simulations#post-7378 Wed, 08 Apr 2020 11:26:58 +0000 Anastasiia 7378@http://www.k-wave.org/forum/ <p>Hi Bradley,<br /> Could you, please, let me know which function simulates a plane wave in 2D? I beleive that i have cylindrical spreading in my simulation. I create a pressure source (a line of pixels with a pressure signal equal for all pixels). But i am not sure how to simulate a plane wave in 2D. I looked at your link, i didn't really see this option.<br /> Thanks! </p> http://www.k-wave.org/forum/topic/1d-vs-2d-simulations#post-7005 Thu, 22 Aug 2019 15:37:23 +0000 Bradley Treeby 7005@http://www.k-wave.org/forum/ <p>Hi Haneefah,</p> <p>Are you simulating a plane wave in both cases? If so, they should agree to machine precision. If not, they should be different because of cylindrical spreading in the 2D case (for example, see the <a href="http://www.k-wave.org/documentation/example_ivp_photoacoustic_waveforms.php">Photoacoustic Waveforms in 1D, 2D and 3D Example</a>).</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/1d-vs-2d-simulations#post-7001 Wed, 21 Aug 2019 04:12:25 +0000 Haneefah 7001@http://www.k-wave.org/forum/ <p>I wonder if there is a difference between the recorded sensor data of 1D vs 2D simulations.</p> <p>Cause I used the same settings for 1D and 2D simulations yet the recoded pressures were different!</p> <p>In fact, the 2D sensor data has lower amplitude and different shapes.</p> <p>to test that, I passed sin waves through both simulations and still got the same problem.</p> <p>I'm not sure if this has to do with the nature of my simulations that non-linearly propagate very high-frequency waves sampled at around 20GHz with up to ~10 MPa peaks in water. </p> <p>Thank you for this great work, it is really a fantastic toolbox. </p>