|December 23, 2010, 03:11||
flow around a cylinder 3d rapid convergence
Join Date: Nov 2009
Location: New York
Posts: 4Rep Power: 9
I am running a simulation to obtain a Karman vortex street. the flow is around a 3D cylinder, I have read some other posts on how to deal with this.
I just want to make sure if it is normal to get convergence after 1 iteration. the system is using S-A model, transient, Re=15000, velocity=7.3 m/s, time step of 0.001 s.
the system is currently only 1.3 seconds into the flow regime, but want to make sure that convergence in one iteration is normal this early because it is too soon to obtain the Karman vortex street or if there may be something wrong with my mesh (about 400,000 elements) or other settings.
I have been getting the same issues using Laminar, K-E and SST.
any advice would be appreciated.
I also have another post here: http://www.cfd-online.com/Forums/flu...ction-udf.html
any advice with that would also be appreciated.
thank you for your time.
|Thread||Thread Starter||Forum||Replies||Last Post|
|Incorrect Drag and Drag Coefficient for flow over a cylinder||ozzythewise||Main CFD Forum||8||June 13, 2012 06:24|
|Oscillating Cylinder in Parallel Flow: Analytical Solution||startingcfd||Main CFD Forum||7||March 23, 2012 06:49|
|Flow around a cylinder at subcritical regime.||yousef||FLUENT||0||March 18, 2006 10:18|
|Convergence in Flow between corotating disks||Felipe||FLUENT||7||January 27, 2004 11:20|
|Inviscid Drag at subsonic, subcritical Mach #||Axel Rohde||Main CFD Forum||1||November 19, 2001 13:19|