|
[Sponsors] |
June 4, 2000, 05:28 |
Drag Coefficient(Cd) of circular cylinder
|
#1 |
Guest
Posts: n/a
|
Hi
I am trying to find Cd value of flow past circular cylinder using Fluent. But I end up with wrong results! Has anybody here worked on this case and got good results? Thanks in advance. |
|
June 4, 2000, 13:34 |
Re: Drag Coefficient(Cd) of circular cylinder
|
#2 |
Guest
Posts: n/a
|
(1).What kind of wrong results are you getting? 2.0, 0.1?(2). What good results are you expecting to get? (3). Cd=Drag/(A*0.5*Rho_freestream*U_freestream*U_freestream), A is Diameter*unit thickness, Drag=Viscous Drag at the surface + pressure drag on the surface. (4). Check the setting of the Reference values or conditions somewhere in GUI and make sure that they are set properly. (5). Always check the flow field first. Plot the streamline and check whether the solution is reasonable or not.
|
|
June 4, 2000, 15:32 |
Re: Drag Coefficient(Cd) of circular cylinder
|
#3 |
Guest
Posts: n/a
|
Thanks for your helpful comments.
I have noticed that I failed to change the area value in the Reference values list. After modifying the Area value, the Cd values are coming okay. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
benchmark: flow over a circular cylinder | goodegg | Main CFD Forum | 12 | January 22, 2013 12:47 |
Incorrect Drag and Drag Coefficient for flow over a cylinder | ozzythewise | Main CFD Forum | 8 | June 13, 2012 07:24 |
Solver and geometry choose for drag coefficient calculation around circular cylinder at large Re | lin | OpenFOAM Running, Solving & CFD | 3 | April 16, 2009 11:50 |
About drag coefficient of 2D circular cylinder! | Haoyin Shan | FLUENT | 0 | May 7, 2007 00:50 |
Circular cylinder drag at high Re | Anton Lyaskin | Main CFD Forum | 0 | January 14, 2003 05:48 |