Marc.W wrote: ↑22 Feb 2022, 12:48
Really apparent how thick the t-tray is here, what could be the theory behind this?
The thickness could allow the generated vortices to stay inboard, feeding the inner tunnel section. You can see the central vanes connect just before it ramps down, so rather than feed the central section it's casting into the first of the side tunnels. The whole McLaren concept appears to be centred around maximising the tunnels effectiveness with good clean airflow.
Edit: on closer inspection, there appears to be a ridge at the top of the tray sidewall, which may spawn more vortices to energise the ones below. The central vane behind it also has a ridge which will energise the vortices even further. The bottom of the t-tray also appears to have a subtle wavy shape, much like the Mercedes floor (it may just be an artefact of image upscaling, so would need to see another pic to confirm, but seems too small to be truly effective).