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Hydrostatic pressure in 5.5

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Old   August 19, 2002, 02:41
Default Hydrostatic pressure in 5.5
  #1
Jens
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Hi,

I have a problem with the setup of a large high tank (70 meter) which is filled with water.

I have set the hydrostatic pressure within the tank since it is fill with water, but has no free surface.

As far as I can see the only way to do this is to use the free surface model, but the problem has no free surface.

Does any on has a hints ?

Thanks a lot.

Regards

Jens
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Old   August 19, 2002, 21:22
Default Re: Hydrostatic pressure in 5.5
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Robin
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Hi Jens,

There was a long discussion of this topic sometime last year on the forum. See this thread for explanations:

http://www.cfd-online.com/Forum/cfx_....cgi?read=1457

Regards, Robin
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Old   August 21, 2002, 09:11
Default Re: Hydrostatic pressure in 5.5
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Jens
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Hi

Thanks for the reply. But I still think the answer are bit confusing, since as I understand CFX-5.5 does no include total sum of pressure only there relative pressure distribution. (So it does no have hydrostatic pressure) So in order to visulize it I have to include into CFX-Post and add it to relative pressure.

That seems strange, since there are a lot of cases where it does matter.

It this assumtion okay ?

Regards

Jens
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Old   August 21, 2002, 11:05
Default Re: Hydrostatic pressure in 5.5
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Robin
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Hi Jens,

This is no longer the case in 5.5.1. The hydrostatic pressure contribution is included in the Pressure, plus an additional vector, Buoyancy Force, is also provided.

Regards, Robin
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