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April 12, 2014, 08:06 |
Setting up static pressure
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#1 |
New Member
Glenn Ong
Join Date: Jan 2014
Posts: 3
Rep Power: 12 |
Hi everyone, I'm relatively new to using CFX and I need some assistance with setting up the static pressure in the fluid domain.
I want to set the static pressure of my domain to that of the underwater pressure, ie. Atmospheric + rho*g*z where the variable in this equation is z. So my question is, where do I key in this equation? Is it under initialization>static pressure>relative pressure? Any help is greatly appreciated. Thanks |
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April 12, 2014, 15:35 |
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#2 |
Member
Join Date: Nov 2009
Posts: 49
Rep Power: 16 |
First, create an expression “main menu->insert->expression”, and then use it in the domain initialization.
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April 13, 2014, 06:38 |
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#3 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,700
Rep Power: 143 |
Abou describes how to add an equation.
But my question is why do you want to do this? If you read the documentation you will find in a buoyant simulation the pressure variable already have the hydrostatic component removed from it. The absolute pressure contains the hydrostatic component (and the reference pressure offset). |
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