Manning's n From Experiments with Rainfall-Runoff on Portland Cement Concrete Surfaces

by Joseph R. Reed, Pennsylvania State Univ, University Park, United States,
J. Blaine Stong, Pennsylvania State Univ, University Park, United States,



Document Type: Proceeding Paper

Part of: Engineering Hydrology

Abstract:

Experiments were conducted under artificial rainfall on Portland cement concrete (PCC) surfaces with variable mean texture depths (MTD) and slopes (S). Rain rates were varied up to 3 in/hr and a regression analysis of the measured sheet flow depths was combined with kinematic wave theory in order to define Manning's n. Results appear to indicate that n is inversely proportional to Reynold's number to an exponent other than one (1).



Subject Headings: Regression analysis | Kinematic waves | Rainfall-runoff relationships | Portland cement | Surface waves | Flow measurement | United States | North America | Portland (Oregon) | Oregon | Washington

Services: Buy this book/Buy this article

 

Return to search