|
[Sponsors] |
the classical problem of the flow around a Cylinder Re=35? |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
October 15, 2009, 19:53 |
the classical problem of the flow around a Cylinder Re=35?
|
#1 |
Member
Behrang Asgharian
Join Date: Oct 2009
Posts: 38
Rep Power: 17 |
Dear friends
I have modeled the classic problem of the flow around a cylinder. The textbook says that I should get two laminar vortexes after the cylinder when 15<Re<40 but my results are very similar to the potential flow solution. I employed the laminar viscosity model. Any tips? Thanks |
|
October 16, 2009, 12:38 |
|
#2 |
Member
Felipe Gutiérrez Donoso
Join Date: Mar 2009
Posts: 31
Rep Power: 17 |
Check domain dimentions.
|
|
October 16, 2009, 16:06 |
|
#3 |
Senior Member
teguh hady
Join Date: Aug 2009
Location: Saga, Japan
Posts: 222
Rep Power: 18 |
Hi
I Agree with Figd84. We must choose the dimension before. In GAMBIT, the default of size is in meter. teguhtf |
|
October 16, 2009, 16:44 |
|
#4 |
Member
Behrang Asgharian
Join Date: Oct 2009
Posts: 38
Rep Power: 17 |
Thanks for your responses guys. I actually considered the fact that the mesh is created in meters in Gambit. The good thing is that the default for Fluent is meters.
Any idea? |
|
October 16, 2009, 20:35 |
|
#5 |
Senior Member
teguh hady
Join Date: Aug 2009
Location: Saga, Japan
Posts: 222
Rep Power: 18 |
15<Re<40 is very small reynold number. It's just like fish moving in water!!! please read this: http://jilawww.colorado.edu/perkinsg...lds_number.pdf
Hope it helps teguhtf |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Complex problem: Open Channel Flow | lett | FLUENT | 18 | November 10, 2018 19:30 |
Flow past cylinder (Re=10^5) | lbeaudet | Main CFD Forum | 9 | June 2, 2009 04:59 |
Periodic flow boundary condition problem | sudha | FLUENT | 3 | April 28, 2004 09:40 |
Turbulent steady flow around a circular cylinder | Mirek Kabacinski | FLUENT | 0 | July 23, 2003 19:40 |
Aeroacoustics - Flow over Cylinder | Axel Rohde | Main CFD Forum | 2 | August 17, 2002 13:18 |