|
[Sponsors] |
December 2, 2019, 06:59 |
increment in temperature of two-phase flow
|
#1 |
New Member
farhad
Join Date: May 2018
Posts: 10
Rep Power: 8 |
Hello every one
I’m trying to simulate the evaporation of R410a in fluent. These are some information about my case: A 2-d axisymmetric smooth tube, Refrigerant enters to the tube, diameter=9.52mm & length = 3000mm inlet vapor quality = 0.2 Constant heat flux on the wall = 15 kw/m2 VOF multi-phase model, turbulence model: k-e standard, transient method, & time step = 1e-04 I put the liquid and vapor state of R410 in fluent material library. I used DuPont released information of R410. when I plot temperature in outflow, there is a huge increment in temperature of mixture while the vapor quality is 0.4, it means that before all refrigerant transfer to vapor, the temperature began to increase, & as all we know that is impossible in reality. Actually I repeated the simulation with water liquid and vapor instead of R410, but the result was same. Does anyone have any idea why is this happening? regards |
|
Tags |
r410a, refrigerant, temperature, two-phase, vof |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
whats the cause of error? | immortality | OpenFOAM Running, Solving & CFD | 13 | March 24, 2021 08:15 |
multi phase flow with chemical reactions in one phase | Habibfateh | OpenFOAM Programming & Development | 0 | February 10, 2014 08:33 |
Please**need help on Tow phase flow ( water & steam water) analysis** | ali_kntu | CFX | 2 | December 19, 2013 17:15 |
is internalField(U) equivalent to zeroGradient? | immortality | OpenFOAM Running, Solving & CFD | 7 | March 29, 2013 02:27 |
How to calculate phase flow rate? | sangramroy | FLUENT | 0 | January 11, 2012 14:02 |