No inlet and Outlet! HELP! Urgent!

A.A · September 26, 2011, 13:10

Hi everyone.
Ok so I am modeling the semicircular canal of the inner ear which houses the endolymph fluid, maintaining the balance sense of the human body. The problem is there is NO inlet or outlet in the structure. The head movements just generate either a clockwise or anti-clockwise rotation ending up displacing an elastic material called cupula, within the canal.

1) Can I do the simulations using FLUENT, without any inlet and outlet?

2) Also, I need to show the displacement of the elastic material 'cupula( inner ear structure)'. Can I simulate this displacement using FLUENT!?

Please help me if you can! Thanks!

chaosh · September 27, 2011, 11:17

1. You can run the problem as a closed domain problem in Fluent (define all boundaries as walls)

2. Displacement can be simulated - you will need to pick the right multiphase model for your application depending on type of flow and volume fraction

A.A · September 28, 2011, 08:26

thanks a lot!

m2montazari · September 29, 2011, 16:15

hi,
you can model the flow with no inlet and outlet, but in fluent you cant model elastic solid body. to model that you need ansys 12 or higher and you need to couple fluent (or cfx) with static structural solver. you can read more in FSI tutorial of cfx in ansys 12 or higher.
yours,
mohammad

September 26, 2011, 13:10	No inlet and Outlet! HELP! Urgent!	#1
A.A New Member Join Date: Sep 2011 Posts: 4 Rep Power: 14	Hi everyone. Ok so I am modeling the semicircular canal of the inner ear which houses the endolymph fluid, maintaining the balance sense of the human body. The problem is there is NO inlet or outlet in the structure. The head movements just generate either a clockwise or anti-clockwise rotation ending up displacing an elastic material called cupula, within the canal. 1) Can I do the simulations using FLUENT, without any inlet and outlet? 2) Also, I need to show the displacement of the elastic material 'cupula( inner ear structure)'. Can I simulate this displacement using FLUENT!? Please help me if you can! Thanks!

September 29, 2011, 16:15		#4
m2montazari Senior Member Mohammad Join Date: Feb 2010 Location: Shiraz, Iran Posts: 108 Rep Power: 16	hi, you can model the flow with no inlet and outlet, but in fluent you cant model elastic solid body. to model that you need ansys 12 or higher and you need to couple fluent (or cfx) with static structural solver. you can read more in FSI tutorial of cfx in ansys 12 or higher. yours, mohammad Sai Krishna likes this.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pulsatile pressure inlet with pressure outlet	a.lynchy	FLUENT	3	March 23, 2012 13:45
ATTENTION! Reliability problems in CFX 5.7	Joseph	CFX	14	April 20, 2010 15:45
VOF Outlet boundary condition in cfd - ace	JM	Main CFD Forum	0	December 15, 2006 08:07
which boundary condition?pls help urgent	ravish	CFX	1	January 7, 2006 02:37
what the result is negatif pressure at inlet	chong chee nan	FLUENT	0	December 29, 2001 05:13

September 27, 2011, 11:17		#2
chaosh New Member sp Join Date: Jul 2011 Posts: 23 Rep Power: 14	1. You can run the problem as a closed domain problem in Fluent (define all boundaries as walls) 2. Displacement can be simulated - you will need to pick the right multiphase model for your application depending on type of flow and volume fraction

September 28, 2011, 08:26		#3
A.A New Member Join Date: Sep 2011 Posts: 4 Rep Power: 14	thanks a lot!