10 ms·

Tesla's Cybertruck Aerodynamics Do Flow Smoothly, as per a CFD Analysis

2 points by ryzvonusef 7y ago

ryzvonusef 7y ago
> So, as one does, an aerospace engineer decided to check for himself and ran the Cybertruck through a CFD simulation (computational fluid dynamics — a computer version of a wind tunnel). Here's what he found out. > One note to point out is that Martin decided not to share a coefficient of drag number as his assumptions of the wheels and fenders could have affected his results. > Regardless, Martin's results are impressive and have sparked an ongoing debate on Reddit. You can also view his images and comments via Martin's Instagram page. https://www.reddit.com/r/Infographics/comments/e2095o/cfd_analysis_of_teslas_cybertruck/ https://www.reddit.com/r/Infographics/comments/e2095o/cfd_an... https://www.instagram.com/p/B5ODYyBBUgh/ https://www.instagram.com/p/B5ODYyBBUgh/
- ryzvonusef 7y ago
  Elon's comment: https://twitter.com/elonmusk/status/1200976907417702400 https://twitter.com/elonmusk/status/1200976907417702400 > With extreme effort, Cybertruck might hit a 0.30 drag coefficient, which would be insane for a truck. Requires tweaking many small details. https://twitter.com/elonmusk/status/1201020290853044224 https://twitter.com/elonmusk/status/1201020290853044224 > Laminar air flow due to a completely smooth bottom is underappreciated https://twitter.com/elonmusk/status/1201027408221966337 https://twitter.com/elonmusk/status/1201027408221966337 > Overall shape is good for low drag coefficient. Matters a lot exactly how you trip airflow at edges & guide air around wheels, like an invisible sculpture.
- ryzvonusef 7y ago
  Here is a thread that provides an interesting counter argument: https://twitter.com/dvoshart/status/1198819548872531968 https://twitter.com/dvoshart/status/1198819548872531968 Ans some more discussion: https://www.reddit.com/r/teslamotors/comments/e3wsy5/a_very_serious_cfd_effort_on_cybertruck/ https://www.reddit.com/r/teslamotors/comments/e3wsy5/a_very_... https://www.goengineer.com/2019/11/27/cybertruck-simulation-deal-or-dud/simulation/solidworks-simulation/ https://www.goengineer.com/2019/11/27/cybertruck-simulation-...

2 points by ryzvonusef 7y ago

> So, as one does, an aerospace engineer decided to check for himself and ran the Cybertruck through a CFD simulation (computational fluid dynamics — a computer version of a wind tunnel). Here's what he found out. > One note to point out is that Martin decided not to share a coefficient of drag number as his assumptions of the wheels and fenders could have affected his results. > Regardless, Martin's results are impressive and have sparked an ongoing debate on Reddit. You can also view his images and comments via Martin's Instagram page. https://www.reddit.com/r/Infographics/comments/e2095o/cfd_analysis_of_teslas_cybertruck/ https://www.reddit.com/r/Infographics/comments/e2095o/cfd_an... https://www.instagram.com/p/B5ODYyBBUgh/ https://www.instagram.com/p/B5ODYyBBUgh/

ryzvonusef 7y ago
Elon's comment: https://twitter.com/elonmusk/status/1200976907417702400 https://twitter.com/elonmusk/status/1200976907417702400 > With extreme effort, Cybertruck might hit a 0.30 drag coefficient, which would be insane for a truck. Requires tweaking many small details. https://twitter.com/elonmusk/status/1201020290853044224 https://twitter.com/elonmusk/status/1201020290853044224 > Laminar air flow due to a completely smooth bottom is underappreciated https://twitter.com/elonmusk/status/1201027408221966337 https://twitter.com/elonmusk/status/1201027408221966337 > Overall shape is good for low drag coefficient. Matters a lot exactly how you trip airflow at edges & guide air around wheels, like an invisible sculpture.
ryzvonusef 7y ago
Here is a thread that provides an interesting counter argument: https://twitter.com/dvoshart/status/1198819548872531968 https://twitter.com/dvoshart/status/1198819548872531968 Ans some more discussion: https://www.reddit.com/r/teslamotors/comments/e3wsy5/a_very_serious_cfd_effort_on_cybertruck/ https://www.reddit.com/r/teslamotors/comments/e3wsy5/a_very_... https://www.goengineer.com/2019/11/27/cybertruck-simulation-deal-or-dud/simulation/solidworks-simulation/ https://www.goengineer.com/2019/11/27/cybertruck-simulation-...