 |
 |
 |
|
|
|
[Sponsors] | ||||
November 29, 2002, 18:24
|
effective? turbulent? laminar?
|
#1 |
|
Guest
Posts: n/a
|
Guys, I have got two stupid questions for you
 1) In the famous drag-particle reynoulds number: Cd=Rep/24(1+0.15*Rep^2/3); for which Rep=dp*Ur*rho/mu; now my question is, to determine the particle Reynoulds number, what type of fluid viscosity do I have to use (effective? turbulent? laminar? viscosity?) 2) In the Saffman Lift Force, there is a viscosity (or kinematice viscosity),what type of viscosity do I have to use here (effective? turbulent? laminar? viscosity?)Nancy |
|
|
||
|
November 29, 2002, 23:17
|
Re: effective? turbulent? laminar?
|
#2 |
|
Guest
Posts: n/a
|
(1)laminar. laminar viscosity is fluid property while 'turbulent' viscosity is a consequence of the flow, depends on the flow characteristics and coordinates.
|
|
|
|
||
|
November 30, 2002, 02:08
|
Re: effective? turbulent? laminar?
|
#3 |
|
Guest
Posts: n/a
|
Yes I know that, but which one do I have to use in the above two equations?
|
|
|
|
||
 |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| CFX Treatment of Laminar and Turbulent Flows | Jade M | CFX | 18 | September 15, 2022 08:08 |
| Laminar vs Turbulent Navier-Stokes | truman | Main CFD Forum | 8 | July 10, 2017 08:20 |
| Laminar doesn't converge; Turbulent models do? | Amit | FLUENT | 11 | April 23, 2015 23:55 |
| SimpleFoam: Laminar vs. Turbulent Convergence | JasonG | OpenFOAM | 0 | June 2, 2011 09:29 |
| effective? turbulent? laminar? viscosity | MIssNancy | FLUENT | 3 | December 3, 2002 00:53 |
Linear Mode
