[DOC] [TLE] Laminar flow vs turbulent flow (smooth vs corrugated tubes) / Flujo ... [PAR] Sep 6, 2010 - 1 min - Uploaded by HRS Heat ExchangersCompare smooth tubes (left) vs corrugated tubes (right).  See how corrugation creates ... [DOC] [TLE] Reynolds number - Wikipedia [PAR] In fluid mechanics, the Reynolds number (Re) is a dimensionless quantity that is 
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Question: (Jon of the Clue Crew reports from a science lab.)  There are two basic types of flow--laminar, which is smooth & regular, & this more common one with swirls & eddies
Answer: turbulent