Hydrostatic pressure initial Field

DiegoNaval · April 1, 2010, 09:49

Hello
I'm a new OpenFoam user and developper. I'm trying to make a simulation of a floating object in to the wather. I use the interFoam solver (with OF1.6), with the k-e modell for the turbulen. I set all the fields, in particular alpha1 to set the initial free surface position with (setFields).
I need to set the hydrostatic pressure (non p equal 0 in all the domain) at the fist time, because the solver crash after 3 iteration.
Can some one tell me how can I do this?

Thanks a lot.

Diego

ckroener · April 1, 2010, 10:01

Hi,

you could use funkySetFields for example:

http://openfoamwiki.net/index.php/Co...funkySetFields

in 5.1 it is described how to initialise a pressure field gradient due to gravity.

ckroener

DiegoNaval · April 1, 2010, 10:21

Thank you Christian

Diuring the eastert holidays i'll try this.

To run my simulation it is right that i must use:
1. interFoam as solver for incompressible rans bi-phase immiscible
2. funkySetFields for set the initial condition
3. GroovyBC for the boudary condition for alpha1, p, and U, k, e for the inlet
4. and to have a no reflecting condition as outlet what can I use?

Thanks again.

April 1, 2010, 09:49	Hydrostatic pressure initial Field	#1
DiegoNaval Member Diego Villa Join Date: Mar 2010 Location: Genova Italy Posts: 37 Rep Power: 16	Hello I'm a new OpenFoam user and developper. I'm trying to make a simulation of a floating object in to the wather. I use the interFoam solver (with OF1.6), with the k-e modell for the turbulen. I set all the fields, in particular alpha1 to set the initial free surface position with (setFields). I need to set the hydrostatic pressure (non p equal 0 in all the domain) at the fist time, because the solver crash after 3 iteration. Can some one tell me how can I do this? Thanks a lot. Diego

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April 1, 2010, 10:01		#2
ckroener New Member Christian Kröner Join Date: Nov 2009 Location: Bonn Posts: 7 Rep Power: 16	Hi, you could use funkySetFields for example: http://openfoamwiki.net/index.php/Co...funkySetFields in 5.1 it is described how to initialise a pressure field gradient due to gravity. ckroener

April 1, 2010, 10:21		#3
DiegoNaval Member Diego Villa Join Date: Mar 2010 Location: Genova Italy Posts: 37 Rep Power: 16	Thank you Christian Diuring the eastert holidays i'll try this. To run my simulation it is right that i must use: 1. interFoam as solver for incompressible rans bi-phase immiscible 2. funkySetFields for set the initial condition 3. GroovyBC for the boudary condition for alpha1, p, and U, k, e for the inlet 4. and to have a no reflecting condition as outlet what can I use? Thanks again.