Creating a interaction between liquid and wall

DanielH · April 20, 2016, 20:22

I am trying to create a model where a non-Newtonian fluid flows through a nozzle, thought the nozzle itself is made from rubber. Does anyone know how to specify the interactions between the fluid and the wall? Cause at the moment I am just using the default aluminium material as my wall?

LuckyTran · April 21, 2016, 09:12

Exactly what types of interactions are you trying to model apart from the no-slip effect?

Also the default aluminum material for the wall is for modelling wall conduction effects (it's strictly for modelling heat transfer) and is probably not applicable to this case.

DanielH · April 26, 2016, 22:31

Well I am wanting to see if there is any interactions between a rubber wall and the non-Newtonian fluid. So I can create a more accurate model. It was mentioned in passing that there are some values I can implement but not sure how I would go about doing so (still trying to get those values, just want to know if there is any methods I should be aware of).

April 20, 2016, 20:22	Creating a interaction between liquid and wall	#1
DanielH New Member Join Date: Apr 2016 Posts: 10 Rep Power: 10	I am trying to create a model where a non-Newtonian fluid flows through a nozzle, thought the nozzle itself is made from rubber. Does anyone know how to specify the interactions between the fluid and the wall? Cause at the moment I am just using the default aluminium material as my wall?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Liquid BC wall no-slip, gas BC wall slip	jpina	Fluent Multiphase	6	March 22, 2016 02:40
Wrong flow in ratating domain problem	Sanyo	CFX	17	August 15, 2015 06:20
Water subcooled boiling	Attesz	CFX	7	January 5, 2013 03:32
Wall deposition of liquid droplets	kUh	CFX	0	January 22, 2008 01:20
Deformation of wall by temperature condition	Jay	FLUENT	0	April 14, 2007 18:06

April 21, 2016, 09:12		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,676 Rep Power: 66	Exactly what types of interactions are you trying to model apart from the no-slip effect? Also the default aluminum material for the wall is for modelling wall conduction effects (it's strictly for modelling heat transfer) and is probably not applicable to this case.

April 26, 2016, 22:31		#3
DanielH New Member Join Date: Apr 2016 Posts: 10 Rep Power: 10	Well I am wanting to see if there is any interactions between a rubber wall and the non-Newtonian fluid. So I can create a more accurate model. It was mentioned in passing that there are some values I can implement but not sure how I would go about doing so (still trying to get those values, just want to know if there is any methods I should be aware of).