|September 11, 2013, 03:50||
Problems with an apparently simple case
Join Date: Jul 2013
Posts: 44Rep Power: 4
Hello to everyone!
I am new with OpenFOAM and, to learn, I am trying to model a Sphere inside a water stream with different Reynold numbers to get the drag-Re curve. At the moment I am simulating the Re 50, 500, 5000, 50000 and 250000. As well, I am running the simulation with different models, to learn about the different turbulent-models and comparing the results both with Fluent results and with a diagram. The lowest Re (50 and 500) are quite OK, but not the others. I think that the solver has been running long enough, but the result of the drag is just getting closer and closer to zero, which, of course, makes no sense...
I have attached one of the cases that is not working properly, or, well, that I was not able to set up properly, let's say. It is here. It is a DES-Spalart Allmaras case. Inside the package, there is the case and some extra files that I use just to visualize some diagrams and so on; I think that they might be interesting for somebody. All the Force and Coeff. data is in the excel file.
Maybe someone have a little bit of time to check it and tell me what I can do...
It is quite important for me to learn how to use OpenFOAM, so THANK YOU VERY MUCH!
|case setup, results, wrong forces|
|Thread||Thread Starter||Forum||Replies||Last Post|
|A simple tube FSI case can't converge||stickjohnson||OpenFOAM||1||June 23, 2014 21:42|
|Simple heat transfer in tube case||Gimlas||OpenFOAM Running, Solving & CFD||2||July 2, 2013 14:05|
|Simple case - Thermal Solver||sdcpune||Main CFD Forum||2||May 26, 2013 21:46|
|Why I don't get the temp gradient in a simple heat conduction case?||zania||OpenFOAM Pre-Processing||1||May 7, 2013 03:17|
|Problems with CEL (guess it's simple to solve)||Felggv||CFX||19||July 17, 2012 19:19|