Drag coefficient of shapes
Drag coefficient of shapes
(OP)
Hi,
I need help in calculation of EPA for street lights. From what I know we need to multiply Area and drag coefficient of the fixture.
How do we determine drag coefficient for different shape of fixtures?
Thanks
C1
I need help in calculation of EPA for street lights. From what I know we need to multiply Area and drag coefficient of the fixture.
How do we determine drag coefficient for different shape of fixtures?
Thanks
C1





RE: Drag coefficient of shapes
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Drag coefficient of shapes
However, the last few I've checked don't have anything, I can't remember the title of the book a colleague had which contained this sort of info.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Drag coefficient of shapes
Does different material and wall thickness have different drag coefficient?
RE: Drag coefficient of shapes
But my second part is still a question. Material and wall thickness ?
Also, is it always EPA= Area x drag coefficient ?
RE: Drag coefficient of shapes
RE: Drag coefficient of shapes
"Shape and Flow: The Fluid Dynamics of Drag" by Shapiro
That is a classic book, not sure if you can get the details of that book on a web page.
RE: Drag coefficient of shapes
sure, if you went to an practical thickness, like .005", the skins would vibrate something awfull; but for practical thicknesses (0.05") and ground level application (ie not supersonic) then no problem.
RE: Drag coefficient of shapes
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Drag coefficient of shapes