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

Power extracted by porous jump

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 25, 2013, 19:17
Default Power extracted by porous jump
  #1
New Member
 
Derek Foran
Join Date: Jul 2013
Posts: 10
Rep Power: 4
OttawaCFD is on a distinguished road
Hi,

It's my first time using this forum and I was wondering if someone could help me. I am simulating a multiphase (water and air) problem using the VOF model with Open Channel option.

I have set up a porous jump face in the water phase to simulate the presence of a tidal turbine. The settings I used for the porous jump are a face permeability of 10000 (to exclude the Darcy law component), a medium thickness of 1 m and a pressure jump coefficient of 0.35 1/m. My hope in using this porous jump in my model is that it will extract 35% of the energy passing through the face, similarly to a turbine of 35% total efficiency.

The model seems to have run properly and the porous jump has reduced the water velocity in it's vicinity as expected however I want to make sure that the porous jump is in fact extracting 35% of the energy flux.

Is there some way in Fluent to compute the energy/power extracted by a porous jump or even just the energy passing through a face? Any help is greatly appreciated. Thanks,

Derek
OttawaCFD is offline   Reply With Quote

Reply

Tags
multiphase, porous jump, power, turbine, vof

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
[ICEM] How can I define different zones in ICEM? llrr ANSYS Meshing & Geometry 13 August 4, 2014 20:04
Porous Jump creation problem mulfal OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 4 December 9, 2013 12:59
Porous jump in urban environment samygero FLUENT 0 February 14, 2011 19:26
Porous Jump Naresh FLUENT 0 April 25, 2007 15:36
Testing the integrity of POROUS media and por jump Azman FLUENT 0 July 31, 2006 11:11


All times are GMT -4. The time now is 18:38.