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Probe pressure is more like wave height

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Old   July 23, 2013, 09:02
Default Probe pressure is more like wave height
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musaddeque hossein
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Probe force from Sinusoidal Displacement.pngDear all:

I am simulating tanksloshing using SloshingTank2D. Tank lenght (L)=1m; height(h)=1m and depth (b) is 0.1 m. Water depth in the tank is 0.35m. I am running the case with 271X271 mesh. I have a probe at 0.05m from the right wall of the tank that captuers phase fraction and pressure for the full height of the tank. The tank oscillates horizontally with law Asin(2*pi*t/T). in my case T=1.2 and A=0.25.

After the OpenFOAM run, I compute the force on the probe as phase_fraction*pressure. The results I get is strange. In my opinion if the tank is swaying with sinusoidal motion, the force should more or less vary sinusoidally. However what I get looks more like wave elevation. Please see the .png files that I have attached.

Any suggestions would be greatly appreciated. Thanks
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