© Jiri Krenek for Mercedes-Benz Grand Prix Ltd.
Mercedes has revealed and provided details of their final upgrade package for the W15, and it’s quite significant.
Front Wing
- Primary reason: Performance – Flow Conditioning
- Geometric differences: Change in flap twist distribution.
- Brief description: Change in flap spanwise twist, reduces front wing wake which improves flow to the rear of the car and rear downforce.
Front Suspension
- Primary reason: Performance – Flow Conditioning
- Geometric differences: Re-profiled upper wishbone fairing.
- Brief description: Re-profiling has improved the attachment of the rear leg through an increased operating range, improving flow to the rear of the car.
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Floor Edge
- Primary reason: Performance – Local Load
- Geometric differences: Additional vane element added to floor edge wing.
- Brief description: Additional vane element increases mass flow under forward floor, increasing vorticity shed from the fence system, increasing floor load.
Sidepod Inlet
- Primary reason: Circuit specific – Cooling Range
- Geometric differences: Lower lip of sidepod inlet moved rearwards.
- Brief description: Lower lip geometry change has improved the flow alignment through a increased range of operating conditions and cooling levels – ultimately improving engine cooling.
Coke/Engine Cover
- Primary reason: Circuit specific – Cooling Range
- Geometric differences: Additional cooling exits local to rear suspension legs.
- Brief description: Additional cooling exit added local to rear suspension to increase sidepod mass flow whilst minimising impact on downstream components such as the rear wing.
Floor Fences
- Primary reason: Performance – Flow Conditioning
- Geometric differences: Reprofiled inboard fence.
- Brief description: New fence profile has improved local pressure distribution and position of vorticity, improving both local and downstream load through better onset flow.
