Quote:
Originally Posted by Christ
My question is this:
Water has a lubricating effect. If the road is wet, but not wet enough for water to actually stand on the surface, needing to be moved, does this mitigate losses in FE due to rain?
I would think it would actually increase FE in this scenario, since water has the lubrication effect, which would reduce frictional losses between the tires and the road.
Thoughts?
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After working in theme park maintenance departments for 20 years, I can state that roller coasters
do run faster with a damp track than with a bone dry track.
That's with steel wheels, on a steel track.
Unfortunately, that scenario doesn't help us on the road.
I'm quite sure (without actual data
) other side effects of temperature, electrical load, puddles, etc, cancel out any slight gain due to reduced frictional losses.