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Old 09-24-2015, 09:35 AM   #25 (permalink)
kach22i
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Quote:
Originally Posted by redpoint5 View Post
What is the Cd of a brick again?
I tried looking that up yesterday because the same question popped into my head. I didn't come up with much, but this morning I looked at this page.

https://en.wikipedia.org/wiki/Drag_coefficient


A brick is not listed, but a cube is, and a long cylinder is.

I'm going to guess somewhere near 1.0 is the Cd of a brick.

EDIT: Found some other stuff, not so sold on some of it's accuracy.

Quote:
The drag coefficient of a brick is typically 2.1. The drag coefficient of an upright person is anywhere between 1.0 and 1.3.

http://www.kgbanswers.com/what-is-th...brick/22219529
Read more http://www.kgbanswers.com/what-is-th...#ixzz3mevdXHWe

I remember posting information on "Blunt Bodies" in the forum a few years ago, some of them with close proximity to the ground.

EDIT-2: FYI - I think bricks are called square cylinders.

Got that from here:
http://www.sciencedirect.com/science...17931011004327

And got that from the thread I remembered:
http://ecomodder.com/forum/showthrea...y-11592-8.html

EDIT-3:

http://www.calqlata.com/proddetail.asp?prod=00021

Quote:
Long Prism (face): Calculates the shape coefficients of a long rectangular beam with the fluid flowing at right-angles to the axis of the beam against a flat face
There ya go, just over 1.0 as projected/assumed earlier.

I should note that proximity to the ground is a pretty big factor not to be ignored.
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Last edited by kach22i; 09-24-2015 at 09:53 AM..
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