Level in 3d vessel.

koorosh · May 12, 2016, 06:34

hi guys,

this is my first post on CFD online!
Iam Beginner.

I would to have an information on building expressions on CFX to define level on 3d vessel.
I use :
liquidHT=-1.4[m]
liquid den= 559.5 [kg m^-3]
liquid VF=if(x<liquidHT,1,0)*if(x>-3.5[m],1,0)*if(y>1.9[m],1,0)
HydroP=liquid den*g*(liquidHT-x)*liquid VF
Whether this is correct ?

please help me .

koorosh · May 12, 2016, 14:23

koorosh;hi guys,
this is my first post on CFD online!
Iam Beginner.
I would to have an information on building expressions on CFX to define level on 3d vessel.
I use :
liquidHT=-1.4[m]
liquid den= 559.5 [kg m^-3]
liquid VF=if(x<liquidHT,1,0)*if(x>-3.5[m],1,0)*if(y>1.9[m],1,0)
HydroP=liquid den*g*(liquidHT-x)*liquid VF
Whether this is correct ?
please help me

ghorrocks · May 12, 2016, 18:44

I do not know what you are trying to do, so I cannot say whether it is correct.

But your calculations look typical for setting an initial liquid level and initial hydrostatic pressure.

koorosh · May 13, 2016, 14:33

hi gorrocks
thank's for reply.
yes exactly i want to set an initial liquid level and initial hydrostatic pressure.
please help me .

koorosh · May 13, 2016, 14:56

hi gorrocks
thank's for reply.
yes exactly i want to set an initial liquid level and initial hydrostatic pressure.
i attach my file.
would youplease help me .
3d.PNG

3d-1.PNG

3d-2.PNG

ghorrocks · May 14, 2016, 07:13

If you tell us what your question or problem is we will try to help you.

koorosh · May 14, 2016, 09:10

hi
i want to show 20% level as inintial level to this vessel by experssion.
liquid density is :559.5 kg/m3

ghorrocks · May 15, 2016, 06:03

Your expressions should do that.

May 12, 2016, 06:34	Level in 3d vessel.	#1
koorosh New Member Join Date: May 2016 Posts: 5 Rep Power: 9	hi guys, this is my first post on CFD online! Iam Beginner. I would to have an information on building expressions on CFX to define level on 3d vessel. I use : liquidHT=-1.4[m] liquid den= 559.5 [kg m^-3] liquid VF=if(x<liquidHT,1,0)if(x>-3.5[m],1,0)if(y>1.9[m],1,0) HydroP=liquid deng(liquidHT-x)*liquid VF Whether this is correct ? please help me .

May 12, 2016, 14:23	level in 3d vessel	#2
koorosh New Member Join Date: May 2016 Posts: 5 Rep Power: 9	koorosh;hi guys, this is my first post on CFD online! Iam Beginner. I would to have an information on building expressions on CFX to define level on 3d vessel. I use : liquidHT=-1.4[m] liquid den= 559.5 [kg m^-3] liquid VF=if(x<liquidHT,1,0)if(x>-3.5[m],1,0)if(y>1.9[m],1,0) HydroP=liquid deng(liquidHT-x)*liquid VF Whether this is correct ? please help me

May 13, 2016, 14:33	level in 3d vessel	#4
koorosh New Member Join Date: May 2016 Posts: 5 Rep Power: 9	hi gorrocks thank's for reply. yes exactly i want to set an initial liquid level and initial hydrostatic pressure. please help me .

May 13, 2016, 14:56	level in 3d vessel	#5
koorosh New Member Join Date: May 2016 Posts: 5 Rep Power: 9	hi gorrocks thank's for reply. yes exactly i want to set an initial liquid level and initial hydrostatic pressure. i attach my file. would youplease help me . 3d.PNG 3d-1.PNG 3d-2.PNG

May 14, 2016, 09:10	3d level	#7
koorosh New Member Join Date: May 2016 Posts: 5 Rep Power: 9	hi i want to show 20% level as inintial level to this vessel by experssion. liquid density is :559.5 kg/m3

May 12, 2016, 18:44		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	I do not know what you are trying to do, so I cannot say whether it is correct. But your calculations look typical for setting an initial liquid level and initial hydrostatic pressure.

May 14, 2016, 07:13		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	If you tell us what your question or problem is we will try to help you.

May 15, 2016, 06:03		#8
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Your expressions should do that.

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