Upper Boundary Conditions for Overland Flow
Publication: Journal of Hydraulic Engineering
Volume 116, Issue 7
Abstract
A laboratory experiment is done to learn more about the influence of upstream boundary conditions on the hydraulics of overland flow under rainfall. The experiment is done on an impermeable plane 1-m wide, with a rainfall simulator that generates a uniformly distributed and time-invariant geometrical rainfall pattern over a length L measured along the plane (from x=O to x=L; x=O is defined as the upslope limit of the applied rainfall). Results show the importance of considering upstream boundary conditions, for gentle slopes, other than the most frequently used h(O,t)=O for O, where h(x, t) is the flow depth as a function of position x and time t. The observed nonzero water depth at x=O and the consequent increase of water depth over the surface radically change the overland flow process over the slope.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Dunne, T., and Leopold, L. B. (1978). Water in the environment planning. W. H. Freeman and Company, San Francisco, Calif.
2.
Graveto, V. M. do N. (1970). “Scale effects in the physical modeling of surface runoff,” thesis presented to the Massachusetts Institute of Technology, at Cambridge, Mass., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
3.
Kilinc, M., and Richardson, E. V. (1973). “Mechanism of soil erosion from overland flow generated by simulated rainfall.” Hydro. Papers No. 63, Colorado State Univ., Fort Collins, Colo.
4.
de Lima, J. L. M. P. (1989a). “The influence of the angle of incidence of the rainfall on the overland flow process.” New directions for surface water modeling (IAHS publ. 181), M. L. Kavvas, ed., Int. Assoc. of Hydro. Sci., 73–82.
5.
de Lima, J. L. M. P. (1989b). “Overland flow under wind‐driven rain.” Agricultural engineering, Vol I—Land and water use; Proc., 11th Int. Congress on Agric. Engrg., Dublin, Ireland, V. A. Dodd and P. M. Grace, eds., Sep., A. A. Balkema, Rotterdam, The Netherlands, 493–500.
6.
Robertson, A. F., et al. (1966). “Runoff from impervious surfaces under conditions of simulated rainfall.” Trans., Am. Soc. of Agric. Engrs., 9(3), 343–351.
7.
Savat, J. (1977). “The hydraulics of sheet flow on a smooth surface and the effect of simulated rainfall.” Earth Surf. Processes, 2, 125–140.
8.
Singh, V. P. (1978). “Mathematical modelling of watershed runoff.” Proc., Int. Conf. Water Resour. Engrg., Asian Institute of Technology, 2, 703–726.
9.
Shen, H. W., and Li, R. W. (1973). “Rainfall effect on sheet flow over smooth surfaces.” J. Hydr. Div., ASCE, 99(5), 771–792.
10.
Yoon, Y. N., and Wenzel, H. G. (1971). “Mechanics of sheet flow under simulated rainfall.” J. Hydr. Div., ASCE, 97(9), 1367–1386.
11.
Yu, Y. S., and McNown, J. S. (1964). “Runoff from impervious surfaces.” J. Hydr. Research, 2(1), 2–24.
Information & Authors
Information
Published In
Copyright
Copyright © 1990 ASCE.
History
Published online: Jul 1, 1990
Published in print: Jul 1990
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.