How to make a wall hydrophilic or hydrophobic?

May 15, 2008, 04:57

Hello i'm using Fluent 6.1.22 and i'm wondering whether it is possible to make a wall hydrophilic or hydrophobic in Fluent.

May 15, 2008, 11:31

Wow!!! Difficult question!

You have 1-phase or 2-phase flow? Water is defined as a phase or as a species?

May 15, 2008, 22:49

Haha i'm using a 2 phase flow with water and oil. The water droplets generated seem to be like sticking on the walls of my structure which is why i'm thinking maybe the walls are set to be hydrophilic. I'm trying to see if there is a way to change this setting or not. One of the forum users bohis said that it is possible to set the contact angle so i'm seeing if this works or not. Any ideas?

M.I.K · February 1, 2022, 06:59

Quote:

Originally Posted by HP
;150823

Wow!!! Difficult question!

You have 1-phase or 2-phase flow? Water is defined as a phase or as a species?

hi

i have a question that how can i simulate a hydrophobic wall in 1 phase ?

i want to simulate a underwater in a water flow and see effect of hydrophobic surface

LuckyTran · February 1, 2022, 10:48

How to use wall adhesion

Then set the contact angle to the suitable wettability angle corresponding to the hydrophobicity of your surface-liquid combination.

May 15, 2008, 04:57	How to make a wall hydrophilic or hydrophobic?	#1
Kes Guest Posts: n/a	Hello i'm using Fluent 6.1.22 and i'm wondering whether it is possible to make a wall hydrophilic or hydrophobic in Fluent.

May 15, 2008, 11:31	Re: How to make a wall hydrophilic or hydrophobic?	#2
HP Guest Posts: n/a	Wow!!! Difficult question! You have 1-phase or 2-phase flow? Water is defined as a phase or as a species?

May 15, 2008, 22:49	Re: How to make a wall hydrophilic or hydrophobic?	#3
Kes Guest Posts: n/a	Haha i'm using a 2 phase flow with water and oil. The water droplets generated seem to be like sticking on the walls of my structure which is why i'm thinking maybe the walls are set to be hydrophilic. I'm trying to see if there is a way to change this setting or not. One of the forum users bohis said that it is possible to set the contact angle so i'm seeing if this works or not. Any ideas?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Hydrophobic and Hydrophilic Surfaces	Nuno L.	FLUENT	2	May 27, 2021 02:28
How to make boundary layer mesh moving with wall	wayne	FLUENT	3	June 12, 2008 00:23
How to make a xy plot of skinfriction or wall shear along a curve	sek	OpenFOAM Running, Solving & CFD	0	February 20, 2008 14:01
help: how to make use of wall functions when ....	xiaofish	FLUENT	0	September 18, 2007 22:49
how to make wall adiabatic	MMACRB	FLUENT	1	January 29, 2007 03:42

February 1, 2022, 10:48		#5
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,750 Rep Power: 66	How to use wall adhesion Then set the contact angle to the suitable wettability angle corresponding to the hydrophobicity of your surface-liquid combination.