# Quenching simulation : how to set up a conjugate heat transfer between solid&liquid

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

October 17, 2012, 14:46
#21
New Member

dking
Join Date: Aug 2012
Posts: 12
Rep Power: 6
Quote:
 Originally Posted by Markat I have already done this so that the meshing in the common line-surface between the solid and the fluid is the same for both fluid ans solid. Would you suggest to mesh to solid part or not? What's the exact difference?
Yes, you must mesh the solid part as well so that Fluent can solve for the temperatures at each node in the solid (via the heat conduction equation). When you mesh the solid, the fluid/solid interface nodes have to match as well.

October 17, 2012, 15:07
#22
Senior Member

Ehsan Asgari
Join Date: Apr 2010
Posts: 299
Rep Power: 9
Quote:
 Originally Posted by dsking Yes, you must mesh the solid part as well so that Fluent can solve for the temperatures at each node in the solid (via the heat conduction equation). When you mesh the solid, the fluid/solid interface nodes have to match as well.

Dear dsking,

I have either meshed the solid zone, but Fluent does not solve the heat transfer at all. Would you help me to understand what is wrong?
tnx

 August 30, 2013, 09:05 Solution #23 Senior Member   Ehsan Asgari Join Date: Apr 2010 Posts: 299 Rep Power: 9 Despite it's been a while since the last comment, I decided to back on the thread and share the solution. Conjugate heat transfer (2D) does happen but very slowly in laminar flow. If you want to see the final solution, solve the problem in steady-state mode. If you select a proper turbulence model you can easily watch both solid & fluid changing temperature in a transient solution. Therefore there is no need to convert the geometry to 3D. I hope this can help.

 March 15, 2015, 00:19 #24 New Member   Aviskar Dhaval Solanki Join Date: Mar 2015 Posts: 1 Rep Power: 0 hi everyone, i am Dhaval solanki doing simulation on fin heat transfer from engine cylinder. Here i have coupled fluid solid mesh for conjugated heat transfer between interface. Now i am facing problem in giving constant temperature boundary condition inside cylinder wall, because if i give constant temperature at wall created by conjugated coupled option, it will decouple the wall from fluid. other one is i am new fluent user i also want to know how to get heat transfer co-efficient and heat flux graph with respect to streamwise direction.. thanks

 August 30, 2016, 06:33 #25 New Member   RAVI KARAN TRIPATHI Join Date: Aug 2014 Posts: 1 Rep Power: 0 Hello everyone, I am also facing the same problem in CHT modeling (2D case) in fluent. here i have one hot cylinder (250c) and another cylinder is placed beside hot cylinder. air with velocity 100 m/s at 30c is flowing over the cylinders. now i want to find the temperature of the second cylinder because of convection. i have made grid in solid portion also. Thanks in advance.

 Tags conjugate heat transfer, fluent, quenching

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post Attesz CFX 7 January 5, 2013 04:32 Chander CFX 2 July 9, 2011 22:22 boathead STAR-CCM+ 1 April 15, 2011 09:13 Suresh FLUENT 0 February 23, 2009 10:51

All times are GMT -4. The time now is 19:21.