Quote:
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Originally Posted by oab_au
No Bill, if the wave was reflected back off a solid end, it would return as the same sign, as when it meets the end of a closed pipe. The sound wave is contained in the pipe itself, it is reflected by the end of the pipe, what is after that may affect the gas flow, but it won't change the sound wave.
I have heard this premiss before, "that the sound wave bounces off the back of the plenum to return", but it is not so.
Harvey.  |
Harvey,
Now I'm going to have to go dig up my gas dynamics text book 
-Bill
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