CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

How to find contact angle.

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   February 23, 2009, 02:17
Default How to find contact angle.
  #1
john
Guest
 
Posts: n/a
Hi everybody, Does anybody has idea about finding "Contact angle". I need to model capilary effect for water. and I require contact angle. Please let me know the required inputs for that. I thank you all for taking interest in this issue.

  Reply With Quote

Old   February 23, 2009, 04:28
Default Re: How to find contact angle.
  #2
Frank Weise
Guest
 
Posts: n/a
Hi John,

the contact angle depends on used material and surface stucture. You can only meassure these data for your case. Look at http://en.wikipedia.org/wiki/Contact_angle for further information.

Frank
  Reply With Quote

Old   February 23, 2009, 04:50
Default Re: How to find contact angle.
  #3
john
Guest
 
Posts: n/a
Hi Frank Weise. Thank you very much. But I do not have any data. Is it possible to get contact angle based on material. I need contact angle for Water,glass,air. Infact, I have 0.1 mm gap between two slides and I have to model capilary. I have been using water-air mixture. i have also one doubt.-->>>Do I need to know contact angle for all materials? Thanks again.

  Reply With Quote

Old   February 23, 2009, 09:50
Default Re: How to find contact angle.
  #4
Frank Weise
Guest
 
Posts: n/a
You have only one contact angle for these 3 elements. http://en.wikipedia.org/wiki/Capillary_action
  Reply With Quote

Old   February 24, 2009, 00:59
Default Re: How to find contact angle.
  #5
john
Guest
 
Posts: n/a
Hi Frank Weise,

Thank you very much. SO, does that mean I need to define only single contact angle? And If I am not wrong then, this should define at wall BC. Am I right?? Kindly correct me, if I am wrong. Please, also let me know, does that mean, contact anlge does not depend on volume fraction. Its a material property.
  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
InterFoam contact angle JoaoMiranda OpenFOAM Running, Solving & CFD 3 August 26, 2014 11:29
Slug Flow, interFoam, problems with Contact Angle PrzemekPL OpenFOAM Running, Solving & CFD 13 February 18, 2014 23:10
how to specify wall contact angle for compressibleInterFoam? phsieh2005 OpenFOAM Running, Solving & CFD 4 December 18, 2012 16:01
Dynamic contact angle with Fluent 6.3.26 baechtel FLUENT 0 May 21, 2009 23:55
Contact angle UDF shephali shrimali FLUENT 0 May 10, 2007 07:52


All times are GMT -4. The time now is 22:12.