CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > FLUENT

dpm mass flow rate

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

LinkBack Thread Tools Search this Thread Display Modes
Old   February 14, 2017, 13:15
Default dpm mass flow rate
New Member
Join Date: Jun 2015
Posts: 25
Rep Power: 11
yow is on a distinguished road
I've been following a basic tutorial for droplet combustion:

I think the only major difference is that I've specified .00096 kg/s injection flow rate of diesel fuel (.5 equivalence ratio) in the discrete phase tab. When I run my iterations, the mass flux reports double that: .00192 kg/s. Is this my error or can Fluent only work with stoichiometric ratios for droplet combustion?

Also, I have trouble achieving continuity convergence - always more than 1e-2 and net mass flow continues to change. I'm using a coupled solver with Courant # = 4, .1 pressure and momentum UDFs, PRESTO! for pressure, and second order for all others. I imported cold flow interpolation that had good convergence. Any help with hot flow convergence is appreciated.
yow is offline   Reply With Quote


combusting particle, convergence failure, diesel injection, dpm fluent, mass flux

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
Discrete Phase Model, outlet mass flow rate does not fit edu_aero FLUENT 29 February 3, 2020 08:38
Specify mass flow rate for periodic boundary conditions in channel flow lion1990 OpenFOAM Running, Solving & CFD 1 July 9, 2018 17:46
Mass flow rate boundary condition with negative values ashtonJ CFX 3 November 26, 2014 05:21
Mass flow rate of phase in post mat_cfd CFX 0 September 3, 2013 07:55
Mass flow rate of the DPM mass sourse ?? Rhinocao FLUENT 3 January 21, 2011 12:10

All times are GMT -4. The time now is 07:53.