Calculating pressure drop from drag
Calculating pressure drop from drag
(OP)
Hi,
I am interested in calculating the pressure drop across rectangular cylinder. I know the coefficient of drag of the cylinder from the Cd vs Re plot and the drag force across the cylinder is given by
Fd = Cd * 0.5 * rho * V^2 * frontal area.
How do i calculate the pressure drop from the drag force? Is
dp = Fd / frontal area
a correct equation to use?
Thank you in advance
I am interested in calculating the pressure drop across rectangular cylinder. I know the coefficient of drag of the cylinder from the Cd vs Re plot and the drag force across the cylinder is given by
Fd = Cd * 0.5 * rho * V^2 * frontal area.
How do i calculate the pressure drop from the drag force? Is
dp = Fd / frontal area
a correct equation to use?
Thank you in advance





RE: Calculating pressure drop from drag
RE: Calculating pressure drop from drag
The difference in pressure with the drag force and without the drag force would be dP.
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada
RE: Calculating pressure drop from drag
RE: Calculating pressure drop from drag
In that case would the above equation be sufficient.
Also I would like to ask you if there is a way to convert Cd to fanning friction factor?