particle model

great1427 · November 25, 2010, 22:01

Hi,everyone.

I use the particle with FLOW-3D v9.4.

In the text output, I choose the particles this option.

And then I can see the data, however,

I don't understand what is mean about xp,yp,zp,vp,up,wp, and psiz.

Do the xp,yp,and zp are mean loction?

Do the vp,up,and wp are mean velocity?

By the way, does the drift-flux model use the fully Navier-Stoke equation?

MuxaB · November 29, 2010, 23:45

xp, yp and zp are particle instantaneous coordinates, and up, vp, wp are the velocity components, psiz is either particle size or density, depending on the option chosen during setup.

The drift-flux model uses the full Navier-Stokes for the mixture and a reduced, drift-flux approximation for the relative motion, where inertial terms are neglected.

November 25, 2010, 22:01	particle model	#1
great1427 New Member JunWei Wang Join Date: Jan 2010 Posts: 13 Rep Power: 16	Hi,everyone. I use the particle with FLOW-3D v9.4. In the text output, I choose the particles this option. And then I can see the data, however, I don't understand what is mean about xp,yp,zp,vp,up,wp, and psiz. Do the xp,yp,and zp are mean loction? Do the vp,up,and wp are mean velocity? By the way, does the drift-flux model use the fully Navier-Stoke equation?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Use of k-epsilon and k-omega Models	Jade M	Main CFD Forum	40	January 27, 2023 07:18
Particle transport and deposition & Drift Flux Model	Peter023	Fluent UDF and Scheme Programming	3	April 20, 2021 23:50
Macroscopic Particle Model	Rizwan	FLUENT	2	October 26, 2017 03:54
Reflection coefficient of particle in DPM model	S.J.R	FLUENT	1	June 9, 2007 19:03
DPM model w/ Wave model - errors in documentation	HS	FLUENT	0	April 12, 2006 04:37

November 29, 2010, 23:45		#2
MuxaB Senior Member michael barkhudarov Join Date: Mar 2009 Location: Sante Fe, New Mexico, USA Posts: 336 Rep Power: 18	xp, yp and zp are particle instantaneous coordinates, and up, vp, wp are the velocity components, psiz is either particle size or density, depending on the option chosen during setup. The drift-flux model uses the full Navier-Stokes for the mixture and a reduced, drift-flux approximation for the relative motion, where inertial terms are neglected.