CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   create short pulse to cause instabilities (http://www.cfd-online.com/Forums/fluent/50391-create-short-pulse-cause-instabilities.html)

Daniel January 27, 2009 06:47

create short pulse to cause instabilities
 
I am trying to model vortex shedding of a 2D cylinder at re 1000. my understanding is that after a while, errors will cause instailities which will intialise the vortex shedding. I have had my model running all night at timestep of 0.05 with 40 iterations per step, and it seems to still be pretty stable. Is there a way to create a pulse to initiate vortex shedding? Many thanks


All times are GMT -4. The time now is 11:58.