|May 18, 2013, 01:31||
FFT with non-uniformly distributed data
Join Date: Jan 2013
Location: yokohama, Japan
Posts: 62Rep Power: 2
I'm using the adjustTimeStep in pimpleFoam to do my simulation, so my timestep is not uniform. After the calculation I need to get the frequency of the lift force, but as the force data is not evenly distributed, it seems difficult to do this. I tried using linear interpolation to convert the data into uniform one, but there seems to be some discrepancy.
does anyone have any idea on how to do this?
|May 20, 2013, 22:17||
Join Date: Jul 2009
Location: Amherst, MA USA - Cincinnati, OH USA
Posts: 195Rep Power: 6
Not sure what kind of discrepancy you're seeing...You could always change the way the time steps are written to force them to be uniform and that would solve your problem.
|Thread||Thread Starter||Forum||Replies||Last Post|
|fluentMeshToFoam multidomain mesh conversion problem||Attesz||OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ...||12||May 2, 2013 11:52|
|Parallel run with distributed data: How?||eskila||OpenFOAM Pre-Processing||7||October 11, 2012 10:22|
|Complex FFT for real data||Hisham||Main CFD Forum||0||November 12, 2011 15:53|
|How to update polyPatchbs localPoints||liu||OpenFOAM Running, Solving & CFD||6||December 30, 2005 18:27|
|Which is faster, distributed or shared data?||Cho||CD-adapco||2||June 17, 2004 17:36|