# quadratic resistance co-efficient

 User Name Remember Me Password
 Register Blogs Members List Search Today's Posts Mark Forums Read

 LinkBack Thread Tools Display Modes
 May 15, 2004, 13:25 quadratic resistance co-efficient #1 praveen rajaperumal Guest   Posts: n/a dear sirs i have a small query for u all. before getting into the queries i will breifly describe the problem this is related to the quadratic resistance co-efficient in a air filter for pressure drop calculation. here in this problem,we have a 3 domains inlet where we supply the mass flow rate outlet where we apply the avg static pressure BC filter where we supply the value of the K (quadratic resistance co-efficient) my queries are 1. does k for the filter remain constant irrespective of the velocty value at the inlet to the filter.i have gone through the text in cfx help regarding this and found that it does vary with inlet velocity.ur comments on that sir.please see the attachment 2. please send it across,if u have any formula related to k for 3d flow. with regards praveen rajaperumal cadem,tecumseh,hyd,india

 May 16, 2004, 18:30 Re: quadratic resistance co-efficient #2 Glenn Horrocks Guest   Posts: n/a Hi Praveen, k is by definition a constant in this model. The documentation discusses momentum sources/sinks. The pressure loss will vary (obviously) but k will be constant. Regards, Glenn

 May 18, 2004, 17:16 Re: quadratic resistance co-efficient #3 Phil Guest   Posts: n/a Small clarification... k can also be set as a CEL expression.

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Ramana CFX 4 November 26, 2012 17:25 SS460 CFX 13 September 22, 2011 11:43 tobino FLUENT 0 June 27, 2011 20:31 JoFFe CFX 3 October 27, 2010 08:42 Ramana CFX 0 January 2, 2006 04:43

All times are GMT -4. The time now is 02:45.

 Contact Us - CFD Online - Top