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

Unable to calculate pressure drop in Preiodic Boundary condition in Fluent

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   June 14, 2020, 08:38
Default Unable to calculate pressure drop in Preiodic Boundary condition in Fluent
  #1
New Member
 
Madhu Kalyan
Join Date: Jun 2020
Posts: 7
Rep Power: 6
Madhu Kalyan is on a distinguished road
So I took a simple problem of a 2cm x 2 cm x 5cm duct and gave a mass flow rate of 1kg/s with air as the fluid in order to simulate periodic BC over a total length of 50 cm. If I give the specified pressure drop and simulate the model I get the exact massflow rate but if I give the mass flow rate my pressure drop is giving bad numbers. What is the problem?
Madhu Kalyan is offline   Reply With Quote

Old   June 15, 2020, 08:12
Default Pressure Drop
  #2
Senior Member
 
vinerm's Avatar
 
Vinerm
Join Date: Jun 2009
Location: Nederland
Posts: 2,946
Blog Entries: 1
Rep Power: 36
vinerm will become famous soon enough
Do note that the pressure gradient is given as per m of length. And by bad, how bad do you mean?
__________________
Regards,
Vinerm

PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority.
vinerm is offline   Reply With Quote

Old   June 15, 2020, 09:05
Default
  #3
New Member
 
Madhu Kalyan
Join Date: Jun 2020
Posts: 7
Rep Power: 6
Madhu Kalyan is on a distinguished road
By bad I mean almost zero pressure gradient. And yes iam talking about the pressure drop per length
Madhu Kalyan is offline   Reply With Quote

Reply

Tags
fluent, periodic boundary fluent


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
sliding mesh problem in CFX Saima CFX 46 September 11, 2021 08:38
Radiation in semi-transparent media with surface-to-surface model? mpeppels CFX 11 August 22, 2019 08:30
CFD analaysis of Pelton turbine amodpanthee CFX 31 April 19, 2018 19:02
Centrifugal fan-reverse flow in outlet lesds to a mass in flow field xiexing CFX 3 March 29, 2017 11:00
Pressure boundary condition ANSYS Fluent aggie FLUENT 6 April 25, 2012 02:39


All times are GMT -4. The time now is 15:00.