CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Problem using rhoReactingbuoyantFoam to simulated Hydrogen dispersion in air

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 17, 2022, 10:12
Default Problem using rhoReactingbuoyantFoam to simulated Hydrogen dispersion in air
  #1
New Member
 
Akshay
Join Date: Jan 2020
Posts: 28
Rep Power: 6
enthusiast is on a distinguished road
Dear Foamers,

I am using OF version 8, I am trying to simulate H2 dispersion in the air using rhoReactingbuoyantFoam. I have disabled chemistry and combustion, I have managed to run the solver, in order to validate the solver I am using data from this technical paper.

Fiates, J., & Vianna, S. S. V. (2016). Numerical modeling of gas dispersion using OpenFOAM. Process Safety and Environmental Protection, 104, 277293. https://doi.org/10.1016/J.PSEP.2016.09.011

The CFD test case which I have used for validation comprises of 1x0.1x0.05 geometrical structure with a 2.7mm diameter at the center.

Inlet velocity = 321 m/s and the Temperature of the methane gas is 260K.

I tried to validate the methane mole fraction decay with the provided simulation data and experimental data in the published paper.

For the same given case, my simulation model is over predicting the methane concentration decay over the axial length.

I have attached the plot and the case file.

I have taken the thermophysical properties from the tutorial case file.

Any kind of assistance to resolve my case file will really help me a lot.

Thank you

methane concentration.PNG

rhoReactingBuoyantFoam_methane_dispersion_validation.zip
enthusiast is offline   Reply With Quote

Old   December 15, 2023, 19:36
Default
  #2
New Member
 
Ashkan Rafiee
Join Date: Jun 2015
Posts: 16
Rep Power: 10
cfdwave is on a distinguished road
Hi
Akshay, I was wondering did you manage to simulate H2 dispersion with OpenFOAM. I am looking into same problem and was wondering what is the best solver and boundary conditions for the simulation. I assume for H2 dispersion we should also account for heat transfer between ground, air and liquid hydrogen pool? I am looking at chtMultiRegionTwoPhaseEulerFoam solver which seems to be designed to handle similar type problems. Have you used this solver and any advice or sample case that you can share would be really appreciated.

Regards
Ashkan
cfdwave is offline   Reply With Quote

Reply

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
Problem in modeling dissociated air in the driven section of a shock tube simulation sneh1306 FLUENT 0 November 8, 2020 06:29
Coupled Heat and Mass Transfer Mecroob OpenFOAM Running, Solving & CFD 1 July 12, 2020 19:24
SU2-7.0.1 on ubuntu 18.04 hyunko SU2 Installation 7 March 16, 2020 04:37
Natural Convection Air Temperature Problem theBerNii FLUENT 1 November 28, 2016 13:30
Senior Design natural gas and air mixing problem wagoat01 FloEFD, FloWorks & FloTHERM 4 February 11, 2016 00:51


All times are GMT -4. The time now is 23:44.