DPM for Laminar Flow

vagaikwa · March 26, 2013, 18:04

Can the DPM be used for Laminar flows?

oj.bulmer · March 27, 2013, 06:26

In DPM, the Langrangian equations for position of particles are solved. While the velocity solved using Newton's law, that dictates that rate of change of momentum is equal to forces (drag, buoyant, body force etc).

Since all these exist in Laminar flow, DPM should work there. Only the additional turbulence parameters like turbulent dispersion is absent.

OJ

vagaikwa · March 27, 2013, 13:54

Thanks OJ,
Actually I am trying to model a pressure driven flow in 2D and inject few particles at the inlet and track them as they flow from inlet to outlet. So thats why after reading tutorials I thought of using DPM injection method for this. And the tutorial which Fluent has uses turbulence model. That is why I was concerned. Thanks for your reply.
Any more suggestions regarding this model are welcome.

-Varad.

March 26, 2013, 18:04	DPM for Laminar Flow	#1
vagaikwa Member Join Date: Apr 2012 Posts: 48 Rep Power: 14	Can the DPM be used for Laminar flows?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Review: Reversed flow	CRT	FLUENT	1	May 7, 2018 05:36
unsteady DPM and steady flow	Mohsin	FLUENT	6	October 9, 2014 05:30
Different flow patterns in CFX and Fluent	avi@lpsc	FLUENT	4	April 8, 2012 06:12
potential flow vs. Euler flow	curious ...	Main CFD Forum	23	July 21, 2006 07:40
Plug Flow	Franck	Main CFD Forum	3	September 4, 2003 05:57

March 27, 2013, 06:26		#2
oj.bulmer Senior Member OJ Join Date: Apr 2012 Location: United Kindom Posts: 473 Rep Power: 20	In DPM, the Langrangian equations for position of particles are solved. While the velocity solved using Newton's law, that dictates that rate of change of momentum is equal to forces (drag, buoyant, body force etc). Since all these exist in Laminar flow, DPM should work there. Only the additional turbulence parameters like turbulent dispersion is absent. OJ

March 27, 2013, 13:54		#3
vagaikwa Member Join Date: Apr 2012 Posts: 48 Rep Power: 14	Thanks OJ, Actually I am trying to model a pressure driven flow in 2D and inject few particles at the inlet and track them as they flow from inlet to outlet. So thats why after reading tutorials I thought of using DPM injection method for this. And the tutorial which Fluent has uses turbulence model. That is why I was concerned. Thanks for your reply. Any more suggestions regarding this model are welcome. -Varad.