The Art of Cooling: Understanding the Science Behind Radiator Ducting

[@thefastandthenerdy]

I made a mistake in this one, I said "As it heats up, the density increases", just incase anyone is wondering, a gas expands as it heats up so the density decreases

[@4739-g9c]

Increasing velocity decreases pressure But closing the exit (if met its flow capacity) will also increase pressure to everything upstream. Unless it's venting out to a area where it's drawing vacuum. So why not leave it open?

[@josephbargo5024]

I think what you’re talking about really depends where the location of venting is and your goal. I think the diagram he has here is easier to control and predict the flow, whereas the diffuser version would be less predictable.

[@thefastandthenerdy]

@@josephbargo5024 Yeah that's right, diffuser, location, and different speeds all change the amount of exit opening you should have to maximise heat transfer and reduce internal drag. Having a system that could adjust the outlet size and fan speed live given the cars speed, location on the track, and coolant temp would be ideal, I image the benefit from this system is probably not worth it given the cost, extra weight, and regulation or we would see it everywhere

[@Sk29833]

If you were to add a pull fan on the very end of the exit ducting would this benifit the overall system I would suspect it would increase the exit velocity of air

[@thefastandthenerdy]

Thanks for watching, yep are are correct, it would help increase the exit velocity of the air, it would definietly help the overall cooling capacity of the system, but would also increase the internal drag.

[@vvalvval]

"As it heats up, the density increases". No ? I think there's a mix-up in the audio comment.

[@thefastandthenerdy]

Whoops, good pick up. Thanks for watching

[@leighchamberlain25]

I jumped on to say similar. I'm not sure what's going on, while I like the video it seems like you keep getting volume and density mixed up? Still... I'm no expert on this subject.

[@thefastandthenerdy]

Thanks for the feedback, I definitely made that mistake