Quote:
Originally Posted by aerohead
*Dimples trigger a transition from laminar,to turbulent boundary layer (TBL).
*On any given day,if there's any wind at all,the Earth's boundary layer will turbulent and up to half a kilometer thick.
*So basically your car is already immersed in in a TBL by 20-mph and doesn't need any dimples to get as good of an attached flow as it can.
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*If the hail damage IS improving your mpg,it's because it's acting as crude vortex generators (VGs).
*If so,properly sized and placed VGs near the back of the greenhouse would be all that was needed for the same effect.
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Thank you sir, I appreciate the science facts as always
Hard to see but I would say marble sized. I'm working on one of my best tanks in the city so far on 93 octane and mmo, and I'm at about 345 miles with a quarter tank left.
I went on a 100 mile commute yesterday in rush hour at a constant speed of 60mph, otherwise my commute is still majority city driving. I did not tail gate or draft on the highway
The only logical way to test my theory is by making a grid pattern on a spare hood and use a center punch to cause dimples. I do not have a hood without hail damage so I can't test my hypotheses
