Neil Joseph
Senior HTF Member
- Joined
- Jan 16, 1998
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- Real Name
- Neil Joseph
I cannot avoid having 90 degree elbows in my second sub (DIY) design. I am using PVC pipe for the construction. My question is this...
When measuring port length (with a 90 degree elbow in there), do you use the average length of the elbow or the longer outside length of the elbow. I am assuming that since sound travels so fast, most of it will tend to speed around the outside longer dimension of the elbow rather than the shorter inner dimension of the elbow but then again, if you force water through it, the water will flow through the entire cross section of the pipe thus I would have to take an average length.
Sorry for the dumb question and thanks in advance.
orangeman
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Neil's H.T. Site
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When measuring port length (with a 90 degree elbow in there), do you use the average length of the elbow or the longer outside length of the elbow. I am assuming that since sound travels so fast, most of it will tend to speed around the outside longer dimension of the elbow rather than the shorter inner dimension of the elbow but then again, if you force water through it, the water will flow through the entire cross section of the pipe thus I would have to take an average length.
Sorry for the dumb question and thanks in advance.
orangeman
------------------
Neil's H.T. Site
(plus large selection of H.T.Links and movie images)