|
[Sponsors] |
September 7, 2020, 18:49 |
Question on Convective augmentation factor
|
#1 |
New Member
Join Date: May 2020
Posts: 7
Rep Power: 6 |
Hello there,
I’m currently trying to simulate a case where a porous media is adjacent to a solid wall using Fluent. The goal is to predict the wall temperature profile. With non-isothermal flow passing through the porous media, there is heat transfer between the porous media and the wall. 1.png Because of the presence of porous media, the heat transfer between the fluid and the wall will be augmented. At the interface, is the thermal boundary condition write as CAF*Kf_eff*dTf/dn=Kw*dTw/dn ? (CAF is the convective augmentation factor, Kf_eff is the effective conductivity of fluid phase in porous media, Tf is the fluid phase temperature, Kw is the wall thermal conductivity, Tw is the wall temperature) Is it appropriate to use CAF in this situation ? Is there any study use the convective augmentation factor to predict the temperature profile of the bounding wall? (I didn’t find any study doing that, only several try to characterize the value of CAF.) Thanks a lot for your help! |
|
Tags |
cht coupling, fluent, heat tranfer, porous, transient |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Please help: Question regarding inletOutlet/outletInlet boundary conditions | sahmed | OpenFOAM Running, Solving & CFD | 4 | March 2, 2017 18:27 |
Guide: How to ask a question on the forums | jola | Site Help, Feedback & Discussions | 0 | July 29, 2016 19:52 |
caculation of friction factor | Dilip | Main CFD Forum | 9 | February 23, 2016 06:00 |
Unanswered question | niklas | OpenFOAM | 2 | July 31, 2013 17:03 |
damping factor | anunu | STAR-CCM+ | 0 | June 15, 2009 23:57 |