CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Pre-Processing

Heat flux boundary condition with interCondensatingEvaporatingFoam

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

LinkBack Thread Tools Search this Thread Display Modes
Old   March 3, 2021, 00:46
Default Heat flux boundary condition with interCondensatingEvaporatingFoam
Join Date: Apr 2016
Posts: 63
Rep Power: 10
silviliril is on a distinguished road
Dear all,

I have seen numerous tutorials on solving boiling problems with
interCondensatingEvaporatingFoam, interThermalPhaseChangeFoam, phaseChangeHeatFoam which are based on Scharge and Lee model. All these tutorials are having "Constant wall temperature" boundary condition.

We know, "Constant wall heat flux" is more practical way to implement heat condition. But, it is tricky, hence, most of developers of these codes have avoided implementing heat flux condition.

Though, I have tried to provide "Heat flux" boundary condition with the help of temperature gradient (using swak4Foam), which is giving me reasonable result but with error ranging from 20-50%.

TemperatureGradient = q/Keff,
where q = heat flux and Keff = kL*alpha+kV*(1-alpha)

Do, you know any more realistic way to apply the "Heat flux" boundary condition?
silviliril is offline   Reply With Quote


boiling, heat flux, intercondensatingevapor, openfoam, phase change

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
sliding mesh problem in CFX Saima CFX 46 September 11, 2021 07:38
CFD analaysis of Pelton turbine amodpanthee CFX 31 April 19, 2018 18:02
Basic Nozzle-Expander Design karmavatar CFX 20 March 20, 2016 08:44
Problem in setting Boundary Condition Madhatter92 CFX 12 January 12, 2016 04:39
Enforce bounds error with heat loss boundary condition at solid walls Chander CFX 2 May 1, 2012 20:11

All times are GMT -4. The time now is 08:28.