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

Mass balance issue during phase change

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 30, 2021, 11:59
Default Mass balance issue during phase change
  #1
Senior Member
 
Saideep
Join Date: Apr 2015
Location: INDIA
Posts: 203
Rep Power: 12
Saideep is on a distinguished road
Hi all,


I have a question regarding mass balance when evaporation takes place.



Usually, when we heat 1 litre of water we have more than 1 litre of steam that forms. In a finite volume appoach how does this work?


To put some numbers to my question:
Lets say I have 1 litre of water initially in a 1D column. And lets say the temperature is 150C and pressure is 1 atm. This will generate 1740 litres of gas (data from PHREEQC run). But my control volume is always 1 litre. And we transport the gas phase in the next time step. How to deal with such scenarios where the mass explodes during phase change? Any clues??



Thanks.
Saideep is offline   Reply With Quote

Reply


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
Modeling methane phase change from liquid to supercritical vapor R4z0rX CFX 5 August 9, 2022 17:26
Discrete Phase Model, outlet mass flow rate does not fit edu_aero FLUENT 29 February 3, 2020 09:38
Mass balance for eulerian model with thermal phase change hamed.majeed Fluent Multiphase 1 February 13, 2019 09:11
[swak4Foam] mass conservation of solid phase violated when using groovyBC with twoPhaseEulerFoam xpqiu OpenFOAM Community Contributions 8 June 17, 2015 03:08
Multiphase Multicomponent mass transfer -Initial condition pannsave CFX 10 February 9, 2011 02:12


All times are GMT -4. The time now is 01:27.