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

Can't Get Temperature distribution in Solids in Fluent (Pipe cooling)

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 31, 2019, 19:07
Unhappy Can't Get Temperature distribution in Solids in Fluent (Pipe cooling)
  #1
New Member
 
Bobby Charlton
Join Date: May 2018
Posts: 2
Rep Power: 0
Bobby Charlton is on a distinguished road
Hello guys,

I am trying to study the cooling of air that is flowing inside a steel pipe that sits in ambient air.

I have modeled the 3 different domains (air-environment domain, steel pipe domain, air flowing domain) and have created a part of all three domains.
I have a great structured mesh.

I have set the temperature of the air-environment at 273 K through the Fixed Values option in the Domains tab. The air is still and not moving so I have not defined any inlets/outlets.
I have set the steel pipe domain as a solid.
I have defined a velocity inlet (2 m/s and 320 K) and pressure outlet (0 pascals, 300 K backflow temperature) for the domain of the air flowing inside the pipe

I get a wall and shadow wall for the outer surface of the pipe, which is set as Coupled. I have the same for the inner surface of the pipe.

I am running the simulation and I am getting a result but when I get a temperature contour of a cross-section of the whole pipe, I get a specific temperature at the normal direction of the heat flow, instead of a classic conduction profile inside the pipe. There is no gradient of the temperature inside the steel pipe. I only get a temperature drop in the direction of the flow (axial direction) but not in the radial direction. Note that I get an expected gradient for the ambient air and the air inside the pipe.

Does anybody know what's up with this? I am trying to get the temperature profile of the steel pipe without doing an FSI with Fluent and Static Thermal.

I even tested a regular wall with two air domains on each side, one hot and one cold, and I still don't get a conduction profile, just a specific value of the temperature (a specific color in the contour). I have created and meshed the solid geometry of the wall.

Thanks!

Last edited by Bobby Charlton; January 1, 2020 at 12:54.
Bobby Charlton is offline   Reply With Quote

Reply

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
whats the cause of error? immortality OpenFOAM Running, Solving & CFD 13 March 24, 2021 07:15
Macros for radial distribution, solids pressure and granular temperature m.uzair FLUENT 0 October 28, 2018 15:49
Running UDF with Supercomputer roi247 FLUENT 4 October 15, 2015 13:41
Indoor Air Temperature distribution - convergence problem Shogan FLUENT 4 May 8, 2014 02:07
is internalField(U) equivalent to zeroGradient? immortality OpenFOAM Running, Solving & CFD 7 March 29, 2013 01:27


All times are GMT -4. The time now is 15:46.