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

Calculating local heat transfer coefficient for Cylindrical fins

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 28, 2021, 23:47
Post Calculating local heat transfer coefficient for Cylindrical fins
  #1
New Member
 
Karthikeyan Kurinjivanan
Join Date: Jul 2020
Location: Braunschweig, Germany
Posts: 4
Rep Power: 3
karyan07 is on a distinguished road
Dear CFD-Online Fraternity,


I have a steady state heat transfer problem, where I cool a heat source (bottom) with flowing water(laminar) by the help of cylindrical fin arrays. I have an 8x8 array and an 8x1 array and I need to compare the local heat transfer coefficient, so that I can validate using an 8x1 instead of an 8x8 to reduce the computational effort needed for my simulation.

I need to calculate the local heat transfer coefficient (h) for the below shown systems. All I can do in ANSYS Fluent now, is to calculate the volume-averaged Surface heat transfer coefficient.


TempVol8x8Cyl35.jpg 2_TempVol_8x1Cyl35.jpg



Consider, in these geometries, each cell is 5mm x 5mm. (with a cylindrical fin in the centre of each cell as shown in the image below)

OneCell.png

I would like to know how I can individually calculate the heat transfer coefficient for each cell, so that I can compare both the geometries.

Any leads are very much appreciated.

Last edited by karyan07; April 29, 2021 at 07:57.
karyan07 is offline   Reply With Quote

Reply

Tags
fins, heat exchanger, heat transfer coefficient

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
calculating heat transfer coefficient on the wall tricha122 FLUENT 0 November 23, 2020 08:21
Average Nusselt number or heat transfer coefficient to compare better heat transfer? Moreza7 CFD Freelancers 5 October 15, 2019 08:50
Multiphase flow - incorrect velocity on inlet Mike_Tom CFX 6 September 29, 2016 01:27
Wall y+, heat transfer coefficient crevoise STAR-CCM+ 0 January 29, 2014 09:44
Constant velocity of the material Sas CFX 15 July 13, 2010 08:56


All times are GMT -4. The time now is 03:55.