Quote:
Originally Posted by freebeard
Not as much as tuft testing.
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A bit difficult when You're alone. Even more to view whats happening underneath the rolling vehicle. But anyway: i ordered a chep action camera and will indeed try to make some tuft testing. Camara mounted on a stick mounted to the rear wall.
Back to wheel box aerodynamics: You probably know pictures like that one - i'll show it to be able to refer to the terminology.
And let me refer to the pic of the bottom of my VM: You see that the back of the wheel box remains fairly clean, and most of the dirt is moved out by vortices B and E. Also note that E appears inward bound but aligns with the central chain tunnel and then leaves the bottom toward the back - but most of the dirt comes from Vortex R (as usual...).
Do You think that will mean tha a do not need to touch the back part of the wheel box, at least not in a first step?
What else can be seen:
the fairing allows for a lot of air entering the wheel box, mor or less on the complete lower half of the wheel. Right?
There are no clear signs of a vortex H - not too surprising regarding the geometry of the air intake (which btw prevented me from further closing the bottom of the wheelbox).
Closing the bottom of the wheel box has a clear impact on the flow within the box - there appears a separation between vortices B, S and E which is not present in the unmodified wheel box shown below, wehre the distribution of dirt is a lot more uniform, isnt'it?