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

at what Reynolds number for non-Newtonian fluids flow that the laminar region end ??

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 20, 2012, 18:23
Question at what Reynolds number for non-Newtonian fluids flow that the laminar region end ??
  #1
New Member
 
sarah
Join Date: May 2012
Posts: 3
Rep Power: 5
the best future is on a distinguished road
Hi all
My investigation is about non-Newtonian fluids flow through the sudden expansion duct in both laminar and turbulent region
My problem .... i do not know at any Reynolds number that the laminer region finish and at what value the turbulent will begin???? .. my work will complete if you help me .. i need to know at what Reynolds number that the laminar region end???
thank you
the best future is offline   Reply With Quote

Old   May 21, 2012, 16:40
Default
  #2
New Member
 
sarah
Join Date: May 2012
Posts: 3
Rep Power: 5
the best future is on a distinguished road
I need your help please ......
the best future is offline   Reply With Quote

Old   May 22, 2012, 00:26
Default
  #3
New Member
 
Abhay
Join Date: May 2012
Location: Mumbai
Posts: 2
Rep Power: 0
abhaykrsahu is on a distinguished road
for flat plate it should be more than 5 x 10^5 and for pipe flow it should be more than 2300
abhaykrsahu is offline   Reply With Quote

Old   May 22, 2012, 06:48
Default
  #4
New Member
 
sarah
Join Date: May 2012
Posts: 3
Rep Power: 5
the best future is on a distinguished road
thank u so much abhaykrsahu for your help. but is this information true for non_Newtonian fluids ? or it is for newtonian fluid?
the best future is offline   Reply With Quote

Old   May 22, 2012, 06:56
Default
  #5
New Member
 
Abhay
Join Date: May 2012
Location: Mumbai
Posts: 2
Rep Power: 0
abhaykrsahu is on a distinguished road
its for newtonian fluid....in case of non newtonian fluid which are highly viscous...they can be considered as laminar flow..... i do not have any idea about specific values
abhaykrsahu is offline   Reply With Quote

Reply

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
emag beta feature: charge density charlotte CFX 4 March 22, 2011 10:14
mass flow in is not equal to mass flow out saii CFX 2 September 18, 2009 08:07
increasing mesh quality is leading to poor convergence tippo CFX 2 May 5, 2009 10:55
No results for solid domain Gary Holland CFX 10 March 13, 2009 04:30
error using combination of step function xujjun CFX 1 January 15, 2008 17:46


All times are GMT -4. The time now is 22:54.