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froud number open channel flow

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Old   December 28, 2009, 05:39
Default froud number open channel flow
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Hi!
I've managed to simulate a standing wave in a river in fluent. I now have the simulation data and would like to obtain the height of the open surface and the froud number.
Does anybody know how to do this?
Thanks
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Old   January 4, 2010, 16:04
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Does anybody know anything??
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Old   January 6, 2010, 15:09
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Sorry I'm not sure I understand your problem correctly, but the answers might be:

Froude Number = u / sqrt(g*d)

u = upstream velocity
g = 9.81 m/s^2
d = water depth

The height of the free surface: The easy straightforward way (for 2D problem) is to plot a single contour of the phase for VOF=0.5, print the plot and measure the height with a ruler. The harder, more accurate way is to export your data to tecplot, although I haven't done this myself yet.
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