I’m not so sure it is. If the leading surface was completely bluff, the length of roof were shorter than the protruding boat and it was moving very fast then yeah, maybe.
In reality, the nose of the RV plus the length of roof surface along with non-Mach speeds will virtually guarantee the bulk of the airflow will remain coupled to that roof until a radical change in geometry such as the boat.
JennaR8r@lemmy.dbzer0.com 1 day ago
Okay but if they would just at the very least, turn that boat around 180°, I’m pretty sure the aerodynamics would improve.
thebestaquaman@lemmy.world 1 day ago
There’s like a 90% chance you’re right, but aerodynamics gets especially messy with stuff like this that has a more or less flat wall at the back. A significant portion of the drag comes from the turbulence behind the vehicle, rather than cutting (more “plowing” in this case) through the air in front. When you change the geometry of the back, you change that drag.
So, if I were to bet, I would bet that turning the boat around would help. But I wouldn’t bet my life on it. Some wacky interaction with the geometry of the rear could somehow cause it to get worse.
UniversalBasicJustice@lemmy.blahaj.zone 1 day ago
You’re going to make me learn OpenFOAM aren’t you
thebestaquaman@lemmy.world 1 day ago
Do it! It’s great fun to play around with!