Quote:
Originally Posted by aerohead
If you inspect Hoerner's 'AERODYNAMIC DRAG',his treatment of canopies and blisters(pontoon fenders and separate greenhouse) actually goes in the other direction.
Instead of a 5:1 fineness ratio,he'll recommend 10:1.
|
One of these days I'm going to have to read the list of books recommeneded in this forum. You are a treasure trove of information
Aerohead.
Let's see if I have this right, things I've learned this week...........
3:1 ....................free air teardrop ratio.
5:1 ...........fineness ratio of a body in proximity to a ground plane.
10:1.....canopies, blisters, pontoon fenders and separate greenhouse.
Quote:
Originally Posted by aerohead
It has to do with interference drag and super-velocities created by these individual elements when placed in proximity to one another.
|
I am also interested in the purposeful introduction of "air curtains" over wheel wells and "roof wing slots" which increase air velocities (and lower pressure) to manage/influence the flow of slower moving (high pressure) air masses.
The simple model of the 3D template is wonderful, but quickly dissolves against the brutalities of adaption to existing car/truck bodies.
We need a bigger bag of tricks in my opinion to post-treat our road bricks.