{"id":31381,"date":"2018-11-07T18:37:40","date_gmt":"2018-11-07T18:37:40","guid":{"rendered":"\/forum\/forums\/topic\/i-made-a-repository-for-color-maps-for-cfd-post-and-fluent\/"},"modified":"2018-11-07T18:37:40","modified_gmt":"2018-11-07T18:37:40","slug":"i-made-a-repository-for-color-maps-for-cfd-post-and-fluent","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/i-made-a-repository-for-color-maps-for-cfd-post-and-fluent\/","title":{"rendered":"I made a repository for color maps for CFD Post and Fluent!"},"content":{"rendered":"

tl;dr:<\/h3>\n

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Rainbow colormaps are bad. I created two GitHub Repositories for better color map choices, courtesy of Kenneth Moreland. They are fluent_colormaps<\/a> and cfdpost_colormaps <\/a>for Fluent and CFD Post, respectively. <\/p>\n

If any ANSYS reps see this, it’d be super nice if these could be officially implemented into new ANSYS versions! <\/p>\n

If you have any questions or comments, please let me know!<\/p>\n

<\/p>\n

Why not just use Rainbow like everyone else?<\/h3>\n

<\/p>\n

Generally, Rainbow is used as the color map for visualization, even though it has been proved to be quite poor for data visualization on a number of different levels. Information on this can be seen on Kenneth Moreland’s website<\/a>. <\/p>\n

<\/p>\n

Here’s an example of a SBES (hybird RANS-LES) simulation result at a single time step. The domain is axisymmetric with flow going right to left:<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

It can easily be seen that the brighter blue is drowning out the smaller scale turbulence. The use of a better color map can improve this dramatically:<\/p>\n

<\/p>\n

<\/p>\n

<\/p>\n

There are dozens of other color map choices that are an improvement on the standard rainbow. I’ve compiled a imgur album of examples<\/a> so that you can easily see the different options.<\/p>\n

<\/p>\n

 <\/p>\n","protected":false},"template":"","class_list":["post-31381","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t