From: Wolfgang Bangerth Date: Wed, 11 Dec 2019 22:23:44 +0000 (-0700) Subject: Also update the 3d picture section. X-Git-Tag: v9.2.0-rc1~790^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6eeb1834a9a7a966b45de73082dba5d915b42955;p=dealii.git Also update the 3d picture section. --- diff --git a/examples/step-46/doc/results.dox b/examples/step-46/doc/results.dox index 57d7b1327b..7b3e46c0fe 100644 --- a/examples/step-46/doc/results.dox +++ b/examples/step-46/doc/results.dox @@ -112,37 +112,17 @@ Refinement cycle 2 Solving... @endcode You'll notice that the big bottleneck is the solver: SparseDirectUmfpack needs -approximately 8 hours and some 42 GB of memory to solve the last iteration of -this problem on a 2010 workstation (the second to last iteration took only 6 +nearly 5 hours and some 80 GB of memory to solve the last iteration of +this problem on a 2016 workstation (the second to last iteration took only 16 minutes). Clearly a better solver is needed here, a topic discussed below. -The results can also be visualized and yield some good pictures: +The results can also be visualized and yield good pictures as +well. Here is one, showing both a vector plot for the velocity (in +oranges), the solid displacement (in blues), and shading the solid region: - - - - - - - - -
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- Vectors of the fluid velocity and magnitude of the - displacement of the solid part. -

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- Streamlines of the velocity, with the mesh superimposed. -

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- Solid displacement. -

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In addition to the lack of a good solver, the mesh is a bit unbalanced: mesh refinement heavily favors the fluid subdomain (in 2d,