Files in this item



application/pdfWangWenzel_1970.pdf (3MB)
(no description provided)PDF


Title:Mechanics of a drop after striking a stagnant water layer
Author(s):Wang, Raymond Chun-Tsung; Wenzel, Harry G., Jr.
Contributor(s):University of Illinois at Urbana-Champaign
Subject(s):Water resources center
Water resources center--Illinois
Hydrology and hydraulics
Impact (rainfall)
Numerical analysis
Shear stress
Sheet flow
Soil erosion
Geographic Coverage:Illinois (state)
Abstract:This report represents a first step in the theoretical analysis of sheet flow with rainfall impinging on the free surface. This is a common occurrence in urban areas and many design procedures do not recognize the added resistance due to the rainfall. The analytical approach consists of the numerical solution of the Navier-Stokes equations, including surface tension as a boundary condition, using a Synthetic-Cell-Fluid scheme which rigorously conserves mass and momentum. The results include a maximum impact pressure model and a quantitative discussion of pressure distribution, boundary shear, the effect of surface tension, the free surface configuration, and the various forms of energy and its transformation during the impact process. Experiments were performed consisting of drop impact pressure measurements using various drop sizes, impact velocities and water layer depths. These data were used to successfully verify the theoretical work.
Issue Date:1970-01
Publisher:University of Illinois at Urbana-Champaign. Water Resources Center
Genre:Report (Grant or Annual)
Sponsor:U.S. Department of the Interior
U.S. Geological Survey
Rights Information:Copyright 1970 held by Raymond Chun-Tsung Wang, Harry G. Wenzel, Jr.
Date Available in IDEALS:2016-05-25

This item appears in the following Collection(s)

Item Statistics