Stalker1 wrote:Raleigh wrote:The biggest visual change I'm expecting is a switch from Wiliams' unusual cropped/open rear bodywork to air outlets more like Mercedes/etc are running. The open rear bodywork is lower drag, but it's also dumping dirty air over the diffuser so that has to be costing downforce.
Probably an extra element in the front wing, Williams has over the last few years been running one less element than Mercedes or RB.
Interesting thoughts, atleast for me. You mean, by using the outlets, the air flow that is raised by the front wing, is directly passed over the side and then as a result of the pressure difference, over the diffuser, deflecting the dirty air flow form the sides of the car? I mean, the air pressure in the back of the car is lower than in the front or the sides of the car, so not only the air passing over the front is draged toward the difusser, but also from the sides etc.
Just explaining my thoughts!
I do not get the idea of extra element in the front wing? Better airflow over the sidepodes?
More front wing elements offer more control over airflow, and thus higher potential downforce. However extra elements come at the penalty of higher drag, with Williams focusing on a low-drag approach over the last two years this is why they have been running 1 less front wing element than Mercedes/RB.
This is not strictly related to airflow over the rest of the bodywork, simply Williams wants more downforce now even at the expense of drag.
As for the rear bodywork, by dirty air I'm talking about air from the cooling outlets at the back of the car. Air that's been through the radiators/ductwork etc, this air is slow moving, turbulent and hotter than surrounding airflow. Most teams choose to vent dirty air through outlets around the exhaust, or inline with the rear suspension. These outlets keep dirty air away from the diffuser, allowing the diffuser to operate more efficiently and generate more downforce, but they also create a larger area low pressure air behind the car which causes drag.
Williams has been using a different approach, the rear bodywork is tightly wrapped around the mechanical components with a thin gap all the way round for venting dirty air. This blends dirty and clean air very well, so you have less drag, but at the same time some dirty air is passing over the diffuser reducing it's efficiency and the downforce generated.