CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

flow through porous fibers

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

LinkBack Thread Tools Display Modes
Old   May 24, 2008, 07:59
Default flow through porous fibers
Posts: n/a
I am modelling flow of water through porous cylindrical polypropylene fibers. The fiber is enclosed in a closed cylindrical cylinder again filled with water.The fiber has an inner diameter of 220 micrometres and the thickness of the porous wall is 40 micrometre thus giving an outer diameter of 300 micrometre. I am looking at two flow rates 1 ml/min and 10 microliters/min(along the tube). The respective mean velocities and reynolds number are .44 m/s(Re 48) and .0004m/s(Re .048).

Now I am interested in the diffusion of the water through the porous wall.Should i use darcy's equation(with just the linear term) or the darcy Forchheimer equation with both the linear and nonlinear terms. Also are there any formulas for the permeability and loss coefficients for such thin fibers
  Reply With Quote

Old   May 24, 2008, 09:05
Default Re: flow through porous fibers
Posts: n/a
Take the time to try several models. Compare the results to whatever data you have available. You'll probably answer your own question.
  Reply With Quote


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
Flow through porous medium using CFX: lack of convergence Chander CFX 3 July 23, 2014 06:32
Multiphase Porous Media Flow - Convergence Issues VT_Bromley FLUENT 5 March 23, 2011 11:38
Compressible flow through porous media? JoFFe CFX 2 November 1, 2010 05:50
porous media flow Siraj CD-adapco 4 February 24, 2006 23:24
air flow through porous pipe faiz rauf FLUENT 3 August 11, 2004 15:08

All times are GMT -4. The time now is 15:30.