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simulation of bottle emptying process

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Old   March 7, 2012, 00:25
Default simulation of bottle emptying process
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hi
A viscous fluid is present in the bottle.when the bottle is inverted, due to the action of the gravity the the fluid should go out.I want to know the time required to empty the bottle.
Plz guide me the approach and boundary condition for this project
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Old   March 7, 2012, 05:00
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Just use gravity and some liquid in the bottle

make the bottle inverted
time should be around 1-2 sec in which bottle will get empty
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Old   March 8, 2012, 02:34
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hi

Thank u...i completed the simulation..can i plot the counters of pressure and velocity of air and fluid individually?
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Old   March 8, 2012, 04:14
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Yes definetely you can do that
but how do you know that your simulatuion is converged .
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Old   March 8, 2012, 06:01
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Hi
The solution will not converge because continuity equation will not balance i am running the solution till all the liquid is completely out of the bottle...It took around 1.5s to empty the bottle...
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Old   March 8, 2012, 06:46
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Quote:
Originally Posted by raki_mech81@yahoo.co.in View Post
Hi
The solution will not converge because continuity equation will not balance i am running the solution till all the liquid is completely out of the bottle...It took around 1.5s to empty the bottle...
let the solution converge then you can see the velocity and pressure and phase countours after the siumulation is converged
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Old   September 18, 2013, 08:23
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http://www.sciencedirect.com/science...6087741100536X

Journal of Food Engineering
Volume 109, Issue 3, April 2012, Pages 609–618



3D CFD simulation of bottle emptying processes
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