DPM bubble flow particles Injection number

Zebulun · June 27, 2022, 12:19

Hi everyone. I am doing bubble DPM and need to inject a given amount of bubbles, now how do I set the bubble volume fraction I want to inject, or how do I know how many bubble particles is the right number.

alainislas · June 29, 2022, 11:32

First, what are the details of your injection? type, bubble diameter (fixed or PSD) , etc ..

You can control the injection by mass flow rate, start time and stop time. Note that in DPM mass flow rate is a DISCRETE mass flow rate, i.e. mdot = number of particles per sec * particle mass

June 27, 2022, 12:19	DPM bubble flow particles Injection number	#1
Zebulun New Member JiangZeping Join Date: Apr 2021 Posts: 10 Rep Power: 5	Hi everyone. I am doing bubble DPM and need to inject a given amount of bubbles, now how do I set the bubble volume fraction I want to inject, or how do I know how many bubble particles is the right number.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
use the message in macro DEFINE_PROFILE with parallel processor	alireza_T	Fluent UDF and Scheme Programming	3	May 11, 2022 03:08
decomposePar problem: Cell 0contains face labels out of range	vaina74	OpenFOAM Pre-Processing	37	July 20, 2020 06:38
parallel run OpenFoam	Srinath Reddy	OpenFOAM Running, Solving & CFD	13	February 27, 2019 10:15
injection problem	Mark New	FLUENT	0	August 4, 2013 02:30
DecomposePar unequal number of shared faces	maka	OpenFOAM Pre-Processing	6	August 12, 2010 10:01

June 29, 2022, 11:32		#2
alainislas Senior Member Alain Islas Join Date: Nov 2019 Location: Mexico Posts: 142 Rep Power: 7	First, what are the details of your injection? type, bubble diameter (fixed or PSD) , etc .. You can control the injection by mass flow rate, start time and stop time. Note that in DPM mass flow rate is a DISCRETE mass flow rate, i.e. mdot = number of particles per sec * particle mass