Quote:
Originally Posted by nimblemotors
1. Your apology is not accepted.
2. You are wrong.
3. A Geo Metro is ugly, a MG Midget is a sports car.
|
*My comment meant no disrespect to you or your project.I'm just attempting to stick with science.
*I've been wrong many times and I have no expectations that that trend will end.
*When it comes to posting though,I attempt to bring prima facie evidence to the table in an effort to spare members the heartbreak of losing hundreds if not a thousand hours on a dead-horse project.
*'Ugly' is a subjective term which cannot be quantified.
*Any car with a specific power-to-weight ratio is by definition a 'sports car.' (I suppose my pickup truck is a 'sports car.' It's faster than a Chevrolet Corvette of the same horsepower).
*Convertibles have recorded Cds on the order of 0.85 with the top down.
*The MG TD is Cd 0.75 with the top up.
*The Lotus Super 7 is Cd 0.67.
*I've no specific data for your car.
--------------------------------------------------------------------------
The nose of the car can constitute less than 6% of the overall drag of a vehicle.
-------------------------------------------------------------------------
*All the 'action' is from the windshield to the rear.
--------------------------------------------------------------------------
*The windshield of the MG,without any significant edge radii is capable of triggering flow separation with 'over-shoot' significant enough that the flow will never re-attach,top or sides.
*Dr.Walter Lay of the University of Michigan proved it in 1933.
*Dr.Wunibald I.Kamm verified Lay's results later in the 1930s.
--------------------------------------------------------------------------
Since reducing separation is the fundamental premise for all automotive streamlining,you've got your work cut out for you.
-------------------------------------------------------------------------
*The Metro may have less than half the drag coefficient of the MG.
*And even though the MG has less frontal area,it might have to be 9-square-feet just to break even with the Metro.
--------------------------------------------------------------------------
*I like your car.Friends owned them when I was in high school.I enjoyed driving them and riding in them.
*Scientifically though,you've taken on a Herculean task.