InjectorProps parameters meaning

wizard1301 · February 12, 2009, 06:19

Hi everyone
I'd like to perform a simulation of a jet of burning kerosene in an duct.
Could someone help me about the meaning of the parameters in the injectorProperties dictionary (in particular the Cd and nParcels parameters)?
I want to specify a constant mass flow rate of liquid from the injector and I would like to have some control on the liquid particle dimension injected.

unitInjectorProps
{
position (0 0.0995 0);
direction (0 -1 0);
diameter 0.00019;
Cd 0.9;
mass 6e-06;
temperature 320;
nParcels 5000;
......

Thank you
Antonio

niklas · February 12, 2009, 07:32

http://openfoamwiki.net/index.php/Co...ctorProperties

wizard1301 · February 12, 2009, 08:02

Thank you Niklas

wizard1301 · February 12, 2009, 08:40

I have another doubt
I suppose that the models for drag, evaporation ecc
are related to particles dimension. I haven't understand the relation between parcel and particle for what concern dimensions.
When a parcel is injected (according to the specified massflowrate and nparcel) what are its characteristics? What is the diameters of the particles that are represented by the parcel?

wizard1301 · February 12, 2009, 08:46

I have another doubt
I suppose that the models for drag, evaporation ecc
are related to particles dimension. I haven't understand the relation between parcel and particle for what concern dimensions.
When a parcel is injected (according to the specified massflowrate and nparcel) what are its characteristics? What is the diameters of the particles that are represented by the parcel?

February 12, 2009, 06:19	Hi everyone I'd like to perfo	#1
wizard1301 New Member Antonio Attili Join Date: Mar 2009 Location: Rome, Italy Posts: 21 Rep Power: 17	Hi everyone I'd like to perform a simulation of a jet of burning kerosene in an duct. Could someone help me about the meaning of the parameters in the injectorProperties dictionary (in particular the Cd and nParcels parameters)? I want to specify a constant mass flow rate of liquid from the injector and I would like to have some control on the liquid particle dimension injected. unitInjectorProps { position (0 0.0995 0); direction (0 -1 0); diameter 0.00019; Cd 0.9; mass 6e-06; temperature 320; nParcels 5000; ...... Thank you Antonio

February 12, 2009, 07:32	http://openfoamwiki.net/index.	#2
niklas Super Moderator Niklas Nordin Join Date: Mar 2009 Location: Stockholm, Sweden Posts: 693 Rep Power: 29	http://openfoamwiki.net/index.php/Co...ctorProperties

February 12, 2009, 08:02	Thank you Niklas	#3
wizard1301 New Member Antonio Attili Join Date: Mar 2009 Location: Rome, Italy Posts: 21 Rep Power: 17	Thank you Niklas

February 12, 2009, 08:40	I have another doubt I suppos	#4
wizard1301 New Member Antonio Attili Join Date: Mar 2009 Location: Rome, Italy Posts: 21 Rep Power: 17	I have another doubt I suppose that the models for drag, evaporation ecc are related to particles dimension. I haven't understand the relation between parcel and particle for what concern dimensions. When a parcel is injected (according to the specified massflowrate and nparcel) what are its characteristics? What is the diameters of the particles that are represented by the parcel?

February 12, 2009, 08:46	I have another doubt I suppos	#5
wizard1301 New Member Antonio Attili Join Date: Mar 2009 Location: Rome, Italy Posts: 21 Rep Power: 17	I have another doubt I suppose that the models for drag, evaporation ecc are related to particles dimension. I haven't understand the relation between parcel and particle for what concern dimensions. When a parcel is injected (according to the specified massflowrate and nparcel) what are its characteristics? What is the diameters of the particles that are represented by the parcel?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What is the meaning.. ???	lopez	FLUENT	6	November 2, 2016 03:48
What is the meaning of	francesco_b	OpenFOAM	3	February 4, 2008 04:54
want to know meaning	Sangamesh	Siemens	0	May 15, 2007 05:15
what is the meaning of this	dpshaka	Main CFD Forum	0	December 15, 2005 21:24
what's the meaning	arwang	FLUENT	4	May 3, 2005 07:34