From d434d299c2af3e0f4e5e8803727a60a9c9dbf998 Mon Sep 17 00:00:00 2001 From: Wolfgang Bangerth Date: Tue, 6 Oct 2009 22:56:22 +0000 Subject: [PATCH] Update result figures and minor textual changes. git-svn-id: https://svn.dealii.org/trunk@19746 0785d39b-7218-0410-832d-ea1e28bc413d --- deal.II/examples/step-35/doc/results.dox | 48 +++++++++++++++++------- 1 file changed, 35 insertions(+), 13 deletions(-) diff --git a/deal.II/examples/step-35/doc/results.dox b/deal.II/examples/step-35/doc/results.dox index 10b90a4133..25bb7c7598 100644 --- a/deal.II/examples/step-35/doc/results.dox +++ b/deal.II/examples/step-35/doc/results.dox @@ -15,7 +15,7 @@ same directory as the source: # In this subsection we declare the physical data # The initial and final time, and the Reynolds number set initial_time = 0. - set final_time = 10. + set final_time = 25. set Reynolds = 100 end @@ -45,27 +45,49 @@ same directory as the source: end #The output frequency - set output = 5 + set output = 50 #Finally we set the verbosity level set verbose = false @endverbatim -Since the verbose parameter is set to false, we do not get any kind of output. +Since the verbose parameter is set to false, +we do not get any kind of output besides the number of the time step +the program is currently working on. If we we were to set it to true we would get information on what the program is doing and how many steps each iterative process had to make to converge, etc. -A plot of the obtained results for $t=0,1,3,5,8,10$ is the following +Let us plot the obtained results for $t=1,5,12,20,25$ (i.e. time steps +200, 1000, 2400, 4000, and 5000), where in the left column we show the +vorticity and in the right the velocity field: + + + + + + + + + + + + + + + + + + + + + + +
@image html step-35.Re_100.vorticity.0.png @image html step-35.Re_100.velocity.0.png
@image html step-35.Re_100.vorticity.1.png @image html step-35.Re_100.velocity.1.png
@image html step-35.Re_100.vorticity.2.png @image html step-35.Re_100.velocity.2.png
@image html step-35.Re_100.vorticity.3.png @image html step-35.Re_100.velocity.3.png
@image html step-35.Re_100.vorticity.4.png @image html step-35.Re_100.velocity.4.png
+ +The images show nicely the development and extension of a vortex chain +behind the obstacles, with the sign of the vorticity indicating +whether this is a left or right turning vortex. -@image html Re100t0.png -@image html Re100t1.png -@image html Re100t3.png -@image html Re100t5.png -@image html Re100t8.png -@image html Re100t10.png - -The contour lines correspond to the pressure, the color to the voriticity and the arrows to the velocity. -Here we only show a zoom into a region near the obstacle which is, after all, where the interesting things happen.

Re = 500

-- 2.39.5