Simulating a Rotary Engine (yes, it braps)

You asked for dorito, I gave you dorito. Education is good for you! Keep exploring at brilliant.org/AngeTheGreat/. Get started for free, and hurry—the first 200 people get 20% off an annual premium subscription.

15:10 the rpm stutter, holy shit it's too good.

The future of racing games' sound design is here! Someone hire this guy for a AAA project!

My dad would have absolutely loved to see these videos. He was a gearhead who spent years working R&D at some of the big houses, Edelbrock, NOS, and others. He engineered some revolutionary new designs for the metering blocks in carburetors, and being able to iterate on designs with today's technology would have blown his mind. Thanks for sharing these!

That new vehicle physics and load simulation is top notch. It sounds so unbelievably real. Great job. I'm blown away.

The true, ideal housing is an epitrochoid, actually pretty easy to calculate. There's math for the inner and outer envelopes (Wankel and Liquid Piston respectively) too, I have a Desmos setup for all of them.

Add the gearbox whine to this, and then it'll be perfect. That transmission stuttering is amazing btw, at first i thought it was a bit too much but it fits perfectly (for a race engine at least).

i clicked for the math and braps, i stayed for the thicc rotary that started fartin

15:40 WOW i didnt realise how much it was missing till you added it in. That is absolutly amazing how that contributes so much to a realistic sound.

The gods gave us everything we asked for

Just got a Toblerone ad on the video. The triangle gods are watching over.

While as a dorito engine enthusiast I'm excited to see and hear the Wankel engine finally being simulated correctly, I actually screamed and did the DiCaprio pointing meme at the moment you explained how the rotor and housing design were optimized using an algorithm akin to a CNC machine. That's an extremely smart solution to model the reulaeux rotors and the epitrochoid housing, and no doubt Mazda engineers also used similar techniques in their research to build the 16X range extender. Mazda also worked on different cavity designs for the rotors to optimize combustion and it turns out that by having no cavity at all meant the highest compression ratio of 16:1 can be achieved. I know you've heard this so many times but you're so cool and smart for investing into this project! Can't wait to finally mod this and test out hypothetical designs including Rolls-Royce's diesel rotary prototype in my spare time. I'm betting someone will eventually show this to Rob Dahm too.

dude the adjustments to the chassis and drivetrain flexibility in the vehicle simulation make an AMAZING difference in the end product! The engine simulator by itself is an absolute work of art, but it sounds mostly like an engine sitting on a dyno. Now it sounds like you're in the car! Bravo!

So happy you got a sponsorship ! Your channel is really growing now !

That drivetrain flex makes all the best noises happen!

The power of finding a niche, from cereal box game to engine simulator. I'm really loving the series and the details you take in account. As someone who knows only little about engines, I didn't expect to hear any difference during the last demo, but I actually did hear it clearly. Very cool details.

the fully simulated sound at the end is ridiculously good, you could tell me it was recorded in a real car and id believe you

9:20 You truly are fortunate to have such a... special research division

I wasn't expecting this to come so soon! Thank you for your efforts and for listenning to our requests. You are truly the great.

Fantastic work. As a long time powertrain engineer with a college education in combustion I appreciate the approach you have taken. For any of the "real engineers" that have complaints about the level of accuracy or such THEY could use some more education around the concepts of optimization and fit for purpose. I also love the way this generates so much interest from other YouTubers who I will generously say sometimes make it their own by tweaking some of the parameters in a way that may go a bit beyond what the laws of physics would generally allow. I sadly don't get these privileges at work, but if they are learning from it while interesting countless followers in physics, I am good with it.