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David David is offline
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Join Date: Apr 2002
Location: Houston (Clearlake), TX
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Quote:
Originally Posted by Flieger View Post
Wouldn't the static pressure drop and dynamic pressure increase at a neck-down tube and then go the other way after the restriction, thereby negating the effect of the smaller tube?
Exactly! When the same volume of air goes through a smaller diameter, it speeds up. As long as you don't reach sonic speeds, you can increase the air flow (although you should stay under 300 ft/sec to maintain laminar flow.) You do loose some pressure or head which is an efficiency loss.
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Old 08-28-2008, 07:29 PM
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