Tutorial to help tank sloshing modelling (CFX 12.1)

enghamed · November 24, 2010, 20:27

Dear Friends,

I need to model tank sloshing. I want some tutorials tahat could help me on this modeling. I'm using ANSYS CFX 12.1

Thanks for all your help

nelly · December 6, 2010, 07:16

Hi Hamed,

I dont know if there is a tutorial for this.

May be I can help you with some stuff.

post your questions.

I try my best to reply them.

Thanks
Nelly

ghorrocks · December 6, 2010, 07:36

The free surface flow over a bump tutorial simulation is the best tutorial on free surface flows.

Haga · December 23, 2010, 11:33

Hi all, am new to cfd-online.
I also am trying to develop the cfd model of liquid slosh in a tank (shape not specific). I would like to do this in Ansys CFX. I just need the CFX part of the work & I am able to model the geometry & mesh it using moving-mesh technique which is I think the most suitable mesh form. I am pretty unsure of how to do the CFX part because no tutorial or data I got from internet speaks about slosh modeling.
Any cfd-specialist can help me??

ghorrocks · December 23, 2010, 21:31

Look in the CFX tutorials. The "Flow over a bump" one shows how to set up free surface flows.

Haga · December 24, 2010, 20:39

ok, will try

Thanks

enghamed · January 4, 2011, 19:02

Quote:

Originally Posted by Haga

Hi all, am new to cfd-online.
I also am trying to develop the cfd model of liquid slosh in a tank (shape not specific). I would like to do this in Ansys CFX. I just need the CFX part of the work & I am able to model the geometry & mesh it using moving-mesh technique which is I think the most suitable mesh form. I am pretty unsure of how to do the CFX part because no tutorial or data I got from internet speaks about slosh modeling.
Any cfd-specialist can help me??

Dear Haga,

Can you please help me how should I apply the moving mesh? What kind of equation should I specify for the moving mesh?

Regards

Haga · January 4, 2011, 20:06

i am studying that now. anyways it has to be done using the VoF method for satisfactory results. i'll post here on how the mesh is made dynamic soon.

ekowp · February 22, 2011, 05:14

hay if you has link or file pdf about modelling sloshing.... please upload them

that great idea to make our tutorial so we can easy to get tutorial on future

leuvadhawal · March 5, 2011, 18:53

Hey, Hareesh, I have been working on fuel slosh simulation using CFX for my thesis. I am working on developing active damping mechanism for fuel slosh. I have been able to simulate fuel slosh without providing moving mesh. Volume fraction is the important factor for obtaining free surface. However, I cant figure a way of measuring the amplitude of fuel slosh in my simulation. Can any one suggest a way to obtain the amplitude of the sloshing in CFX.

Thanks

putexx · August 9, 2011, 01:09

how to synchronize motion of ship and sloshing??
i am confused about that..
any one can help me???

Haga · August 20, 2011, 21:39

Quote:

Originally Posted by leuvadhawal

Hey, Hareesh, I have been working on fuel slosh simulation using CFX for my thesis. I am working on developing active damping mechanism for fuel slosh. I have been able to simulate fuel slosh without providing moving mesh. Volume fraction is the important factor for obtaining free surface. However, I cant figure a way of measuring the amplitude of fuel slosh in my simulation. Can any one suggest a way to obtain the amplitude of the sloshing in CFX.

Thanks

Yes, thanks, I did simulate lateral sloshing without moving mesh. Use isosurface to calculate amplitude. Use function calculator for finding max & min X & Y values to get slosh angle & amplitude

mauricio · August 21, 2011, 19:07

There's are some ansys 12 tutorial slides with a transitory case with tank sloshing somewhere... also, for the free surface it's common to assume that the isosurface where the volume fraction is 0.5 is the water/fluid surface.

Haga · August 21, 2011, 21:43

Quote:

Originally Posted by mauricio

There's are some ansys 12 tutorial slides with a transitory case with tank sloshing somewhere... also, for the free surface it's common to assume that the isosurface where the volume fraction is 0.5 is the water/fluid surface.

hello, setting the isosurface with volume fraction depends on the liquid fill level required. I didn't see any slosh specific slide in ANSYS 12 tutorials, will check it again

elmer7 · August 27, 2019, 18:41

friend, the tutorial procedure is for 2D, the same procedure is valid for 3D

elmer7 · August 27, 2019, 18:45

Quote:

Originally Posted by ghorrocks

Look in the CFX tutorials. The "Flow over a bump" one shows how to set up free surface flows.

friend, the tutorial procedure is for 2D, the same procedure is valid for 3D

November 24, 2010, 20:27	Tutorial to help tank sloshing modelling (CFX 12.1)	#1
enghamed Member Hamed Join Date: Jun 2010 Posts: 43 Rep Power: 16	Dear Friends, I need to model tank sloshing. I want some tutorials tahat could help me on this modeling. I'm using ANSYS CFX 12.1 Thanks for all your help

August 9, 2011, 01:09	Sloshing and global motion	#11
putexx New Member Join Date: Feb 2011 Location: indonesia Posts: 10 Rep Power: 15	how to synchronize motion of ship and sloshing?? i am confused about that.. any one can help me???

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December 6, 2010, 07:16		#2
nelly New Member Nelly Join Date: Oct 2010 Posts: 5 Rep Power: 16	Hi Hamed, I dont know if there is a tutorial for this. May be I can help you with some stuff. post your questions. I try my best to reply them. Thanks Nelly

December 6, 2010, 07:36		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	The free surface flow over a bump tutorial simulation is the best tutorial on free surface flows.

December 23, 2010, 11:33		#4
Haga New Member Hareesh R Iyer Join Date: Dec 2010 Location: Thiruvananthapuram Posts: 21 Rep Power: 15	Hi all, am new to cfd-online. I also am trying to develop the cfd model of liquid slosh in a tank (shape not specific). I would like to do this in Ansys CFX. I just need the CFX part of the work & I am able to model the geometry & mesh it using moving-mesh technique which is I think the most suitable mesh form. I am pretty unsure of how to do the CFX part because no tutorial or data I got from internet speaks about slosh modeling. Any cfd-specialist can help me??

December 23, 2010, 21:31		#5
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	Look in the CFX tutorials. The "Flow over a bump" one shows how to set up free surface flows.

December 24, 2010, 20:39		#6
Haga New Member Hareesh R Iyer Join Date: Dec 2010 Location: Thiruvananthapuram Posts: 21 Rep Power: 15	ok, will try Thanks

January 4, 2011, 20:06		#8
Haga New Member Hareesh R Iyer Join Date: Dec 2010 Location: Thiruvananthapuram Posts: 21 Rep Power: 15	i am studying that now. anyways it has to be done using the VoF method for satisfactory results. i'll post here on how the mesh is made dynamic soon.

February 22, 2011, 05:14		#9
ekowp New Member Eko Wahyu Join Date: Feb 2011 Posts: 1 Rep Power: 0	hay if you has link or file pdf about modelling sloshing.... please upload them that great idea to make our tutorial so we can easy to get tutorial on future

March 5, 2011, 18:53		#10
leuvadhawal New Member Dhawal Leuva Join Date: Oct 2010 Posts: 1 Rep Power: 0	Hey, Hareesh, I have been working on fuel slosh simulation using CFX for my thesis. I am working on developing active damping mechanism for fuel slosh. I have been able to simulate fuel slosh without providing moving mesh. Volume fraction is the important factor for obtaining free surface. However, I cant figure a way of measuring the amplitude of fuel slosh in my simulation. Can any one suggest a way to obtain the amplitude of the sloshing in CFX. Thanks

August 21, 2011, 19:07		#13
mauricio Member Mauricio Labarca Join Date: Aug 2009 Posts: 35 Rep Power: 17	There's are some ansys 12 tutorial slides with a transitory case with tank sloshing somewhere... also, for the free surface it's common to assume that the isosurface where the volume fraction is 0.5 is the water/fluid surface.

August 27, 2019, 18:41		#15
elmer7 New Member elmer Join Date: Aug 2013 Posts: 13 Rep Power: 13	friend, the tutorial procedure is for 2D, the same procedure is valid for 3D