|
[Sponsors] |
December 10, 2008, 16:32 |
Calculation of Drag Coefficient manually
|
#1 |
Guest
Posts: n/a
|
In a given 2-D geometry, which area does fluent considers for the calculation of Drag Coefficient? I am solving for the drag of an ellipse. Fluent gives the value of Drag Coefficient directly. But how do we know the area considered by fluent?
|
|
December 10, 2008, 21:35 |
Re: Calculation of Drag Coefficient manually
|
#2 |
Guest
Posts: n/a
|
The area is simply the cross sectional area of a sphere, pi*r^2
|
|
December 11, 2008, 00:48 |
Re: Calculation of Drag Coefficient manually
|
#3 |
Guest
Posts: n/a
|
Projected area is used in finding lift and drag coeffiecient. For example, you can give the diameter of cylinder when you are interested in flow over cylinder.
|
|
December 17, 2008, 16:20 |
Re: Calculation of Drag Coefficient manually
|
#4 |
Guest
Posts: n/a
|
I was trying to mach the coeffient of drag value calculated by fluent with my mannual calculation, but the values were different. But Later I found that fluent takes some default vale of Area and other parameters. It does not consider the Area in our geometry.
|
|
December 13, 2012, 16:31 |
area problem
|
#5 |
New Member
Chaudhary
Join Date: Dec 2012
Location: Pakistan
Posts: 8
Rep Power: 14 |
i want to calculate area of circles which would be used in ansys fluent ....
it is 2d heat exchanger and i have problem how to calculate area of circle in front of flow or which area i have to put in reference value .. i have confusion whether i have to use area of 2 or 4 circles ??? kindly tell me how to calculate this area or which area i have to put in reference value ??? i have attached the jpeg. file of structure to further explain it ? waiting for answer...i will be very thankful to you. what Reference values should I used in fluent to find the area as defaults values are 1 for area,depth and length. Area=? Depth=? |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Fluent Good Lift coefficient BAD drag coefficient | Rif | Main CFD Forum | 4 | March 9, 2010 11:52 |
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 |
low drag coefficient | Jason | FLUENT | 3 | August 14, 2008 01:53 |
Is the drag coefficient right? | mimibenben | FLUENT | 3 | July 13, 2006 23:14 |
Coefficient of drag | sam | Siemens | 4 | May 26, 2005 06:47 |