http://www.k-wave.org/forum/topic/k-wave-accuracy-verification-with-theoretical-solutions Support for the k-Wave MATLAB toolbox en-US Fri, 15 May 2026 10:46:44 +0000 http://bbpress.org/?v=1.0.2 q http://www.k-wave.org/forum/search.php http://www.k-wave.org/forum/topic/k-wave-accuracy-verification-with-theoretical-solutions#post-8043 Sat, 06 Feb 2021 12:21:37 +0000 Bradley Treeby 8043@http://www.k-wave.org/forum/ <p>Hi marioj,</p> <p>You could see <a href="http://bug.medphys.ucl.ac.uk/papers/2020-Treeby-JASA.pdf">this paper</a> for a comparison from a fluid sphere with k-Wave. Indeed, this type of example takes longer to converge. Not sure in the elastic case unfortunately.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/k-wave-accuracy-verification-with-theoretical-solutions#post-8034 Mon, 01 Feb 2021 13:38:50 +0000 marioj 8034@http://www.k-wave.org/forum/ <p>Hi Bradley.</p> <p>I am trying to do some 3D propagation modelling using pstdElastic3D, but the results are far from the theoretically ones.</p> <p>For instance the scattering from a solid sphere (vl=4210; vt=2030; ro=2170) inside solid media (vl=5830; vt=3090; ro=7920) in Rayleigh regime give rise to a power dependence with scatter radius (r) around 2.3(scat=k*r^2.3), instead of the theoretical 6 exponent (scat=k*r^6).</p> <p>I am aware that this is for sure related to the fact that the simulations are based on structured grids and is difficult to model the complex diffraction pattern and mode conversion in the borders of the sphere. The increasing of number of points per wavelength used is only way to try to solve the problem? Do you now any previous work that deals with comparison of this problem results with theoretical ones?<br /> Thank you for your time!</p> <p>Regards. </p> http://www.k-wave.org/forum/topic/k-wave-accuracy-verification-with-theoretical-solutions#post-7963 Sat, 28 Nov 2020 05:54:23 +0000 yilinluo 7963@http://www.k-wave.org/forum/ <p>Thank you so much for your reply! I'll look into them. </p> <p>Best,<br /> Elyn </p> http://www.k-wave.org/forum/topic/k-wave-accuracy-verification-with-theoretical-solutions#post-7941 Thu, 26 Nov 2020 11:39:19 +0000 Bradley Treeby 7941@http://www.k-wave.org/forum/ <p>Hi Elyn,</p> <p>There are quite a few examples depending on what you want. A non-exhaustive list:</p> <p><a href="https://doi.org/10.1121/1.4712021">https://doi.org/10.1121/1.4712021</a> compares with the analytical solutions for the reflection and transmission coefficient</p> <p><a href="https://dx.doi.org/10.1121/10.0002177">https://dx.doi.org/10.1121/10.0002177</a> compares with the analytical solution for scattering from a penetrable sphere</p> <p><a href="https://dx.doi.org/10.1109/TUFFC.2019.2941795">https://dx.doi.org/10.1109/TUFFC.2019.2941795</a> compares with experiments for layered media</p> <p><a href="https://dx.doi.org/10.1121/1.4976339">https://dx.doi.org/10.1121/1.4976339</a> compares with analytical solutions for different skull-tissue interfaces</p> <p><a href="https://dx.doi.org/10.1088/1361-6560/aa5e98">https://dx.doi.org/10.1088/1361-6560/aa5e98</a> compares with experimental measurements for skull phantoms</p> <p>You can also see <a href="http://bug.medphys.ucl.ac.uk/publications">here</a> for a full list of publications.</p> <p>Brad. </p> http://www.k-wave.org/forum/topic/k-wave-accuracy-verification-with-theoretical-solutions#post-7916 Fri, 06 Nov 2020 23:29:04 +0000 yilinluo 7916@http://www.k-wave.org/forum/ <p>Dear Forum,</p> <p>Thank you for the amazing toolbox. It's been very useful.</p> <p>I was wondering if there are any systematic comparisons of K-wave with theoretical solutions (just want to have some understanding of its failure modes, especially for sharp boundaries)? I've been looking for publications but haven't found such comparisons yet. Could you point me to one? Thank you for your time!</p> <p>Best,<br /> Elyn </p>