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Liquid splash

7 REPLIES 7
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Message 1 of 8
amy.jin
837 Views, 7 Replies

Liquid splash

Hi,

 

Can Autodesk Simulation CFD 2014 simulation the liquid splash?

Thanks very much.

splash.jpg

 

7 REPLIES 7
Message 2 of 8
OmkarJ
in reply to: amy.jin

How about using angular motion to the gears and enabling free surface model? I don't know though, if the wall adhesion forces are addressed here. 

Message 3 of 8
amy.jin
in reply to: OmkarJ

Hi OmkarJ, Thanks for your reply. I am not sure that if CFdesign 2014 hasn't solution for this problem.
Message 4 of 8
apolo_vanderberg
in reply to: amy.jin

Omkar's reply is how we would do this.

Given that the gears overlap space we cannot use a rotating region, however you can do Motion and Free Surface to see how the fluid moves due to the gears.

 

Feel free to try this on a 2D slice of a model to get your bearings on how this would work

 

Message 5 of 8
amy.jin
in reply to: apolo_vanderberg

Hi Apolo,

 

How I can setup  to do Motion and Free Surface for 3D or 2D model?

If you have any benchmark for this problem?

Thanks very much.

 

Amy

 

Message 6 of 8
apolo_vanderberg
in reply to: amy.jin

Please check out the Help as it discusses how to set up a Free Surface model in detail.

Also check out SimTV

Message 7 of 8
amy.jin
in reply to: amy.jin

Hi Apolo,

 

Thanks for your reply.

If you have any suggestion for the motion setup for gear-driven flow?

How should I setup the rotation speed because it cannot using rotation region?

Is it reasonable that set the rotation speed to driving wheel and driven wheel at Motion?

Thanks very much.

 

Amy

Message 8 of 8
Royce_adsk
in reply to: amy.jin

Hi Amy,

 

You would use the motion setup task instead of a rotating region.   You would use the perscribed angular motion definition for both gears.

 

More often I would actually end up using the combined linear and angular motion so I can place my gear outside of my flow domain when building my CAD.  Then use the linear initial position setting to place my gear in space where I need it. This way you don't have a imprint or ghost in the mesh where the gear was initially in CAD. This allows the flow domain mesh to be much cleaner and more efficient.

 

Best regards,



Royce.Abel
Technical Support Manager

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