I was hoping for a two stroke mode as well!
Combustion engine web-based simulator
11–20 of 87 posts
Re: Combustion engine web-based simulator
#12"How it Works" -> "Idk" OP probably
I see no declaration that this is a machine generated site, but the aesthetic is a dead giveaway. The language on the “how it works” page is unmistakably LLM output. As a total novice in engines this site had the potential to educate me, but did the author vet the data at all? If the author doesn’t bother telling me they checked any output on this, what assurance do I have anything is accurate on the site at all? If I knew an actual engineer put their focus on this tool I’d feel much better about trying to learn something from it. Short of that it’s just a pretty (but predictable) interface.
Re: Combustion engine web-based simulator
#13I don't understand how the throttle and RPM can be modified independently. Surely the RPM depends on the throttle?
Re: Combustion engine web-based simulator
#14this is really impressive. actual movements with live diagrams looks great. you can consider adding sound to take it to another level.
Re: Combustion engine web-based simulator
#15really interesting project - would be good to see a link to a repo
Re: Combustion engine web-based simulator
#16I don't understand how the throttle and RPM can be modified independently. Surely the RPM depends on the throttle?
In principle you can instantaneously set the throttle opening to some position and set the RPM to whatever you want. In time the RPM will rise or fall until the engine is at equilibrium, but throttle position and RPM aren't like mechanically interlocked. Otherwise how could the engine speed up when you go down a hill?
Re: Combustion engine web-based simulator
#17187 N/A BSFC @ 2000rpm and open throttle. Tried emulating a DI 2GR-FXE. Seems a bit optimistic, but still fun to play with.
Re: Combustion engine web-based simulator
#18Very nice! Reminds of this classic, focused mostly on the sounds: https://github.com/ange-yaghi/engine-sim
Re: Combustion engine web-based simulator
#19"How it Works" -> "Idk" OP probably
I see no declaration that this is a machine generated site, but the aesthetic is a dead giveaway. The language on the “how it works” page is unmistakably LLM output. As a total novice in engines this site had the potential to educate me, but did the author vet the data at all? If the author doesn’t bother telling me they checked any output on this, what assurance do I have anything is accurate on the site at all? If…
I'm a mechanical engineer who has written similar tools for work and hobbies. Producing pretty pictures does not mean that the model is physically accurate. Unfortunately, such tools seem be evaluated much more on flashiness and not on more reliable and objective criteria like physical accuracy based on verification and validation test suites. I'm seeing that in the comments here. I don't think LLMs make what I do irrelevant, but I have thought that I'm going to have to improve how flashy my simulations look to compete better with non-experts who use LLMs.
Re: Combustion engine web-based simulator
#20If you're looking for a carefully crafted/written work to explain internal combustion engines, look no further than this one https://ciechanow.ski/internal-combustion-engine/ (the Mechanical Watch article from the same author was featured on HN a while ago).