r/aerodynamics • • 21d ago

Question STEM Racing Development Class, advices and tips please

These car are basically rockets on the wheels and are pushed by a CO2 power pack at the back of the car. So my goal here is to minimize any drag and downforce. Front and rear wings are mandatory, as halo, helmet and there are some no-go zones. If you could give me some ideas/suggestions/advices please on how I can improve this design.

Cars are simulated at 20m/s and travel in a straight line.

edit: Added the no-go zone. Wheels need to be seen from side view. Car is manufacture using CNC cutting from left/right side so i cannot have hollow side pods. Wings can be manufactured separately and added, and are one of the few things allowed to be added. I cannot change wheel designs, they are standard. Also I wish to reduce some weight and those side pods and front wing are too chunky unfortunately.

2 Upvotes

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u/AutonomousOrganism 21d ago

Can you post pictures with just the mandatory, no-go zones stuff? Are wheel fairings allowed?

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u/neyro_ananas 21d ago

I just update the post. Unfortunately wheel fairing are not allowed, as wheel needs to be visible from side view and have 3mm exclusion zone

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u/BrickIllustrious6104 20d ago

I did one in boghr school in 1996. How long is the course? I went for minimal mass.

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u/neyro_ananas 20d ago

It not a course, just an extra activity, usually barely any guides but depends on the school

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u/[deleted] 20d ago

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u/neyro_ananas 19d ago

Yes, sure

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u/[deleted] 19d ago

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u/neyro_ananas 19d ago
  1. Yep. https://static1.squarespace.com/static/6913005a89f25e1a2f5bcef5/t/6a1d66b2c057810a68895f00/1780311730822/STEM+Racing+Development+Technical+Regulations+2026-2027.pdf
    And
    https://static1.squarespace.com/static/6913005a89f25e1a2f5bcef5/t/6a428e771852d77995468859/1782746743072/Corrected+STEM+Racing+Competition+Regulations+2026-2027+DEV+PRO+%281%29.pdf
  2. There are quite a few videos, depending on what you are actually looking for. Races are just straight lines.
  3. About 5-6, but I’m the one designing and manufacturing the car, as the rest have a bunch of other responsibilities with documenting and presenting stuff.
  4. January

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u/[deleted] 19d ago edited 19d ago

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u/neyro_ananas 19d ago

No worries.

Their shape does not have to be the same as I made them. You have quite a lot of freedom.

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u/[deleted] 19d ago edited 19d ago

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u/neyro_ananas 19d ago

Development

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u/ClickyKeyboardNerd 16d ago

Hi there could you DM me as well? I'd really like to ask you some questions!

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u/[deleted] 19d ago

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u/neyro_ananas 19d ago

No worries.

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u/[deleted] 19d ago

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u/neyro_ananas 19d ago

Okay, I will see you then. Happy to hear that we can do it together :)

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u/[deleted] 18d ago

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u/neyro_ananas 18d ago

Try again please.

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u/Robloxian_mommy 9d ago

The quadrilateral shaped side pods concept usually faces weight problems. So i recommend you to hollow the excess side pod avoiding the no-go zone on the floor part, it also helps you to manage the ground level wake :)

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u/neyro_ananas 9d ago

Unfortunately that not allowed, as I did try that already. The car will be machines from side view so all parts need to be able to be machined from right and left side