CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > FloEFD, FloWorks & FloTHERM

Pressure loss in PEM cell with different profiles

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 11, 2009, 16:47
Default Pressure loss in PEM cell with different profiles
  #1
New Member
 
Rodrigo
Join Date: Apr 2009
Posts: 1
Rep Power: 0
rodrigoscf is on a distinguished road
Hello.

I'm a student of Mechanical Engineering and I'm trying to project a PEM cell.

Now, I'm studing the influence of different profiles into pressure loss.

THE SOFTWARE IS COSMOS FLOWORKS

For now, let's focus in a common serpentine.

I have working pressure and inlet volume flow rate.

I put as bondary conditions, the inlet volume flow in the inner face of inlet cavity and at the outlet cavity, I put static pressure and pressed 'OK'.

As inicial conditions, I put the inlet face and accepted the entries. P and T default, defined previous at Wizard.

I choose, than, Static Pressure at inlet and outlet surface. And Global Goals velocity and density.

I run the solver.

Next I put everything in Floworks calculator.

I want to know if I can trust in this way of getting pressure loss... Am I right?


I believe that it will give me the inlet pressure that I need to choose a pump.

Sorry for my english and for the big text... but I'm trying to learn the software by myself.

Thanks for everyone...

Rodrigo.
rodrigoscf is offline   Reply With Quote

Old   April 14, 2009, 11:00
Default
  #2
New Member
 
Ivan Dergunov
Join Date: Mar 2009
Posts: 2
Rep Power: 0
GadskiyPapa is on a distinguished road
Quote:
Originally Posted by rodrigoscf View Post
Hello.

I put as bondary conditions, the inlet volume flow in the inner face of inlet cavity and at the outlet cavity, I put static pressure and pressed 'OK'.

As inicial conditions, I put the inlet face and accepted the entries. P and T default, defined previous at Wizard.

I choose, than, Static Pressure at inlet and outlet surface. And Global Goals velocity and density.

I run the solver.
Hi, you are making all right, but I don't understand, why you use inlet face as inlet conditions?

In FlowSimulation (Formely Cosmos FloWorks) you can define initial conditions in the GeneralSettigs>Initial Conditions. There are possibility to define temperature, pressure and velocity. For some special cases you can use Local initial conditions.

For obtaning values of pressure drop you can use Equation Goals={SG Static Pressure Inlet} - {SG Static Pressure Outlet}.
GadskiyPapa is offline   Reply With Quote

Reply

Tags
floworks pressure drop

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
FvMatrix coefficients shrina OpenFOAM Running, Solving & CFD 10 October 3, 2013 15:38
Pressure loss in a combustor Anand Main CFD Forum 0 April 28, 2003 10:33
Gas pressure question Dan Moskal Main CFD Forum 0 October 24, 2002 23:02
what the result is negatif pressure at inlet chong chee nan FLUENT 0 December 29, 2001 06:13
Pressure at the surfaces of a cell Gao Main CFD Forum 6 January 8, 2001 20:58


All times are GMT -4. The time now is 15:43.