http://www.k-wave.org/forum/topic/possible-to-use-kspacefirstorder2d-for-simulating-3d-grid Support for the k-Wave MATLAB toolbox en-US Wed, 13 May 2026 10:37:55 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/possible-to-use-kspacefirstorder2d-for-simulating-3d-grid#post-7320 Thu, 26 Mar 2020 11:28:06 +0000 Bradley Treeby 7320@http://www.k-wave.org/forum/ <p>Hi Annie,</p> <p>Wave propagation in 2D and 3D are different - a point source in 2D is equivalent to an infinite line source in 3D, and thus will experience cylindrical rather than spherical spreading. There are some more details in 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/possible-to-use-kspacefirstorder2d-for-simulating-3d-grid#post-7298 Tue, 17 Mar 2020 15:27:09 +0000 anniezhi 7298@http://www.k-wave.org/forum/ <p>Hi all,</p> <p>I am simulating a square ultrasound field with a linear array of transducers with elevation (height). The kWaveTransducer seems to require a z-direction (thus 3D) to make it work. However, as my simulation is essentially in 2D, the dimension of the elevation does not matter at all. I'm wondering if it's possible to use kspaceFirstOrder2D when simulating the field, instead of kspaceFirstOrder3D, which is very time consuming?</p> <p>Thanks in advance!</p> <p>Best,<br /> Annie </p>