CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

how to define model and operating condition

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

LinkBack Thread Tools Display Modes
Old   December 6, 2005, 11:59
Default how to define model and operating condition
gokul patil
Posts: n/a
i am working on a problem in which there is turbulent flow heat transfer inside of pipe and natural convetion at outer surface of the pipe and heat flux is falling at outer surafce of pipe can anyone tell me please , how should i define operating condition ..

and also at outer surface of pipe which is coupled with fluid witj whoom there is natural convection .. how can i give heat flux there ? is there need of UDF?
  Reply With Quote

Old   December 7, 2005, 03:59
Default Re: how to define model and operating condition
Posts: n/a
I hope,this is for ur design verification only,Using calculated parameters,u can try the model with Two different(Split) volume (inside pipe & outside convection domain).Apply ur inlet massflow in inside pipe & u calculate Delta p(pressure drop) across the pipe then impose the required pressure condition on pressure outlet. Then apply convection boundry over inside pipe wallthru out its length,the convection coefficient value should be calculated based on the outside Fluid regime condition.

  Reply With Quote

Old   December 7, 2005, 04:56
Default how to define model and operating condition
Posts: n/a
thanx for help ....... i am trying... if any further difficulty is there i will ask ... thanks

  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
Discrete phase or two phase model in Fluent? andrea panizza FLUENT 14 September 6, 2015 16:18
help me to define operating pressure for steady,turbulence RNG K-e model nareshnkk FLUENT 0 December 3, 2010 04:22
Problems bout CFD model of biomass gasification, Downdraft gasifier wanglong FLUENT 2 November 26, 2009 00:27
Using non-premixed model on compressible flow Libing FLUENT 0 November 10, 2005 19:39
Help: apply B.C. in my granular flow model ? Derek Jing FLUENT 0 May 8, 2002 22:32

All times are GMT -4. The time now is 11:58.