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Title: Entrance loss and boundary development in smooth- and rough-walled rectangular conduits
Authors: United States. National Bureau of Standards.
Keulegan, Garbis H. (Garbis Hovannes), 1890-1989.
Keywords: Boundary layer
Water tunnels
Fluid dynamic measurements
Current flow
Frictional resistance
Publisher: Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; H-68-2.
Description: Miscellaneous Paper
Summary: This paper summarizes the results of analytical studies on energy losses during boundary layer development in the entrance of smooth and rough conduits. Velocities as defined by the Blasius Law were used to relate the local pressure, momentum of the liquid and the wall friction. The analytical studies resulted in entrance loss of 0.077 and 0.096 of the conduit velocity head, respectively for the smooth and rough conduit conditions.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Miscellaneous Paper

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