I'll start this thread with a quote form Neels van Niekerk, find a link to the writing below.
"Without turbulence in the combustion chamber we would burn the mixture at the laminar
burning rate which is ten to twenty times slower than the turbulent rate. This would make
practical engines that rev higher than about 1500rpm an impossibility."
When we look at the high RPMs of formula 1 engines it is obvious that burn durations are
very short. I'm certain many aspects of the engine design allow combustion of air/fuel
mixture in the very short time available at these extreme RPMs.
I don't have interest in turning these extreme RPMs, I only use this as an example.
My goal is to generate high levels of mixture motion at much lower RPMs to reduce burn
rates substantially. My questions are:
Is piston movement/squish action largely responsible for the fast burn rate at high RPM?
Is this more important than intake flow induced mixture motion or do they play equal roles?
Is there a point where in cylinder turbulence becomes excessive, if so what are the results?
Squish action