Accession Number:

AD0724533

Title:

Entrance Loss and Boundary Development in Smooth- and Rough-Walled Rectangular Conduits,

Descriptive Note:

Corporate Author:

ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s):

Report Date:

1968-09-01

Pagination or Media Count:

56.0

Abstract:

The 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 9.096 of the conduit velocity head, respectively for the smooth and rough conduit conditions.

Subject Categories:

  • Civil Engineering
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE