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TeachMeFinance.com - explain Critical flow Critical flow The term 'Critical flow' as it applies to the area of the weather can be defined as ' In hydrologic terms, a condition of flow where the mean velocity is at one of the critical values; ordinarily at Belanger's critical depth and velocity. Another important usage is in reference to the Reynolds' critical velocities which define the point at which the flow changes from streamline or nonturbulent to turbulent flow. '. The term 'Critical flow' as it applies to the area of reclamation can be defined as ' When the Froude number is equal to one, the flow is critical and surface waves remain stationary in the flow. Flow at critical depth. Used to describe open channel flow when certain relationships exist between specific energy and discharge, and between specific energy and depth'. Previous 5 Terms: Critical Access Hospital (CAH) critical area Critical control point Critical Depth Critical discharge Next 5 Terms: Critical habitat Critical habitat Critical height Critical mass Critical organ About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.