Adding shedding cylinder to doc (#156)

Co-authored-by: nileshsawant <nileshsawant@github.com>
Co-authored-by: Marc T. Henry de Frahan <marc.henrydefrahan@nrel.gov>

Author: 3 people

Docs/sphinx/VandV.rst

@@ -74,4 +74,20 @@ extent of a contunuum limit, single-component, single-phase, transient computati
 Input and post processing files: `Tests/test_files/sodTest/`
 
 .. image:: /figs/sodShock.png
-   :width: 600pt     
+   :width: 600pt    
+
+
+Flow around a cylinder in a channel
+-----------------------------------
+
+This test case solves flow around a cylinder confined in a channel and validates against the data from 
+"Schäfer, M.; Turek, S.; Durst, F.; Krause, E.; Rannacher, R. 
+Benchmark Computations of Laminar Flow Around a Cylinder, 1996. https://doi.org/10.1007/978-3-322-89849-4_39." The input files included with 
+MARBLES correspond to case 2D-2 of the "Schäfer et al." benchmark. The Strouhal number is found to be 0.28 from the simulation, in agreement 
+with the range from literature.
+
+
+Input and post processing files: `Tests/test_files/cylinder_turek_2d2/`
+
+.. image:: /figs/sheddingCylinderRe100.png
+   :width: 600pt