Amateur Aerodynamics

Now that we have modeled cooling system performance, used math to figure out what's going on, measured a bunch of parameters to determine what it's doing in real life, and built a physical model that gave insight into what's happening under the hood, we can move on to making it better . Here's where it gets fun; you don't have to be satisfied with your car's cooling system as is. Do you need greater cooling capacity because you track your car in Phoenix in the summer? Do you want less cooling drag and can sacrifice some cooling capacity because you compete at the Green Grand Prix in New York in the cool of early spring? Do you want to reduce drag while increasing cooling capacity just a little? Do you want to rig up an actuator or system to vary outlet area so you can adjust cooling capacity and drag on the fly? Any of those, and infinitely more, are possible. You don't have to fall into the trap of thinking your car is as perfect as it can be from the ...