How to evaluate evaporated mass in OpenFOAM

g.freeman · June 6, 2016, 08:02

Hello dear fomers,
I've just completed a case of mass transfer over a heated body, using reactingParcelFilmFoam and I want to visualize the mass rate evaporated in function of the abscissa of my body.
Does anyone know how to do it in paraview? I can't find any quantity like mass evaporated.

Thank you in advance for the reply.

g.freeman · June 13, 2016, 09:22

I checked in standardPhaseChange.C it calculates, for each cell, the amount of mass evolved via phase change, what I want is to have this as output in order to plot the mass evaporated on the surface

neilk · March 18, 2019, 10:18

Hey,
You could check the change in deltaf (the thickness of the remaining film) over time. This file gets written in the wallFilmRegion. So you could average out the thickness for each time and plot it over time.

Or you could write a post process script in MATLAB to recognize only the values that come after "mass phase change" in the log file.

Let me know if it works.

Nilay

June 6, 2016, 08:02	How to evaluate evaporated mass in OpenFOAM	#1
g.freeman New Member Join Date: May 2016 Posts: 28 Rep Power: 9	Hello dear fomers, I've just completed a case of mass transfer over a heated body, using reactingParcelFilmFoam and I want to visualize the mass rate evaporated in function of the abscissa of my body. Does anyone know how to do it in paraview? I can't find any quantity like mass evaporated. Thank you in advance for the reply.

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June 13, 2016, 09:22		#2
g.freeman New Member Join Date: May 2016 Posts: 28 Rep Power: 9	I checked in standardPhaseChange.C it calculates, for each cell, the amount of mass evolved via phase change, what I want is to have this as output in order to plot the mass evaporated on the surface

March 18, 2019, 10:18		#3
neilk New Member Nilay Kulkarni Join Date: May 2018 Posts: 24 Rep Power: 7	Hey, You could check the change in deltaf (the thickness of the remaining film) over time. This file gets written in the wallFilmRegion. So you could average out the thickness for each time and plot it over time. Or you could write a post process script in MATLAB to recognize only the values that come after "mass phase change" in the log file. Let me know if it works. Nilay