Quote:
Originally Posted by freebeard
You did all that with your finger?  Or do you have a stylus? |
The cell phone comes with a stylus (ink-less pen/pointer).
The program has several pen and eraser settings.
Quote:
Originally Posted by gumby79
my cap matches some of your drawings .
|
I was thinking about your cap because I like it very much. However I believe yours is fairly true to the aero-template. This proposal is more like the rear of a Semi-Truck with those baffles.
The program used below came with a camera I bought over a dozen years ago, it is simple, but I can crudely draw straight lines using my mouse.
Below is that awkward transitional wedge between the cab and bed I talked about. Needless to say, the entire sportside bed is an aerodynamic mess, but I'm doing what I can.
S10 4x4 Pick Up by George Kachadoorian | Photobucket
I intend to keep the air gap between the cab and bed.
Think of a louver, the many steps are actually gaps, yet the air flow continues to follow the general form.
I also am operating on the premise that the air gap sucks in a small amount of high velocity, very low pressure air, practically a vacuum. This inner panel flow helps draw in the outer skin flow at the rear termination edge.
This is how I believe my current modestly sized roof wing performs at a scale much greater than it's size would indicate.
If any one knows the exact angle or optimum angle the rear baffles on a semi-truck are set at, please post this information.
If anyone knows the required body length or body ratio required in order to pull off using rear baffles, please post this information. I fear the upper part of the cab is simply too short to pull this concept off effectively, but I am willing to experiment and keep an open mind.