Thread: Why am i not getting good MPG?
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Old Tue, February 16th, 2010, 11:48 AM
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Jackpine Jackpine is offline
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Originally Posted by longshot270 View Post
I was going to say the name too but I couldn't remember how to spell it either.
Helmholtz! Sheesh!

Here's a Wikipedia article on it: Helmholtz resonance - Wikipedia, the free encyclopedia

Note near the bottom it talks about reducing drag on aircraft bu 40% using acoustic liners based on the Helmholtz principle. This effect was something I was a bit concerned about when people talked about removing the resonators from intakes. I thought it might induce standing waves in the intake that would hurt its efficiency. I think that is why "drone" is probably NOT a good thing too.

- Jack