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

Heat transfer coeff. between solid and fluid

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 1, 2017, 09:04
Default Heat transfer coeff. between solid and fluid
  #1
New Member
 
Farhad
Join Date: Jun 2017
Posts: 5
Rep Power: 2
Fari87 is on a distinguished road
Hi all,

I hope u guys can support me as I'm not experienced to Fluent as probably most of you.
During the first step of my investigation I would like to analyse the heat transfer coefficient on a simple cylinder as solid. The domain and solid both are rotationally symmetric. Note: It's just a stationary case and only temperatures are relevant.

I've modeled the assembly (Solid-Domain) in NX, named all the interfaces by using NS-manager and afterwards imported it to Ansys. A contact region was automatically defined by mesh. Additionally I've defined a cylindrical system of coordinates. After creating the mesh I tried to setup the boundary conditions. And here is the problem:

After starting the setup I've noted that my terms from the NS-manager are renamed to walls. The matter is now I can't find the correct interface as I would like to give a temperature to the surface of the cylinder. The interfaces are not highlighted by simple clicking on them. I've also tried to change the adjacent boundaries, but same issue as before... and btw I've already changed the type of the cylinder to solid.

I'm pretty sure it's a cinch for you, could you please support? Thanks in advance.

Best regards
Fari
Fari87 is offline   Reply With Quote

Old   June 2, 2017, 02:31
Default
  #2
Senior Member
 
KaLium's Avatar
 
Kal-El
Join Date: Apr 2017
Location: Finland
Posts: 148
Rep Power: 2
KaLium is on a distinguished road
If you have fluid zone and solid zone, you should have wall and wall-shadow between the zones.

I think that easiest way to find a wall in geometry is to draw a contour on it.
KaLium is offline   Reply With Quote

Reply

Tags
cylinder domain, cylinder mesh, heat transfer coefficient, walls boundary conditions

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
Error - Solar absorber - Solar Thermal Radiation MichaelK CFX 12 September 1, 2016 05:15
Question about heat transfer coefficient setting for CFX Anna Tian CFX 1 June 16, 2013 06:28
Error finding variable "THERMX" sunilpatil CFX 8 April 26, 2013 07:00
Water subcooled boiling Attesz CFX 7 January 5, 2013 04:32
Convective Heat Transfer - Heat Exchanger Mark CFX 6 November 15, 2004 16:55


All times are GMT -4. The time now is 07:41.