FFT CFX result in CFD-Post

badboyz31 · October 25, 2015, 20:19

Hello everyone

Recently, I ran a transient cavity flow simulation and I post-processed it in CFD-Post. I probed the data by creating a point inside the cavity

The time history pressure plot was okay, but when I want to use the Fast Fourier Transform feature (with Hanning window), there was an error message after "loading", "Internal Error: Curve is Empty".

Did I do something wrong?

OzMantle · December 9, 2015, 07:51

Hello,

I had the same problem with a time-dependent fluctuation chart. It seems that CFD Post can only process time-series taken at equal time steps in a continuous (consecutive) manner.

Hope it helps

October 25, 2015, 20:19	FFT CFX result in CFD-Post	#1
badboyz31 Member Join Date: May 2013 Posts: 45 Rep Power: 14	Hello everyone Recently, I ran a transient cavity flow simulation and I post-processed it in CFD-Post. I probed the data by creating a point inside the cavity The time history pressure plot was okay, but when I want to use the Fast Fourier Transform feature (with Hanning window), there was an error message after "loading", "Internal Error: Curve is Empty". Did I do something wrong?

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December 9, 2015, 07:51		#2
OzMantle New Member Oscar Join Date: Jun 2010 Location: Sheffield, UK Posts: 18 Rep Power: 17	Hello, I had the same problem with a time-dependent fluctuation chart. It seems that CFD Post can only process time-series taken at equal time steps in a continuous (consecutive) manner. Hope it helps