| Автор | Phelps, H. O. |
| Дата выпуска | 1970 |
| dc.description | An incomplete understanding of the friction coefficient of rough surfaces is one of the limiting factors in the application of the basic momentum and continuity equations to the modeling of overland flow. Experiments on steady, uniform flows in the laminar and transitional regions over a simulated turf surafce provide the data required to investigate the general hydraulic roughness properties of natural turf, and the particular parameters that are likely to influence the friction coefficient. Since boundary geometry depends on flow depth, it is erroneous to disregard this factor when considering the relationship between friction coefficient and Reynolds number. By maintaining constant depths while varying the Reynolds number, the separate effects of boundary geometry and Reynolds number on the friction coefficient are demonstrated. The results, which are presented in the form of a friction coefficient chart, may be rationally explained if the simulated turf is considered to be a complex porous medium in which the boundary geometry is variable. |
| Формат | application.pdf |
| Копирайт | Copyright 1970 by the American Geophysical Union. |
| Название | The Friction Coefficient for Shallow Flows over a Simulated Turf Surface |
| Тип | shortCommunication |
| DOI | 10.1029/WR006i004p01220 |
| Electronic ISSN | 1944-7973 |
| Print ISSN | 0043-1397 |
| Журнал | Water Resources Research |
| Том | 6 |
| Первая страница | 1220 |
| Последняя страница | 1226 |
| Выпуск | 4 |
| Библиографическая ссылка | Chauveteau, G., C.Thirriot, Régimes d'ecoulement en millieu poreux et Jimitc de la loi de Darcy, La Houille Blanche, 2, 141–148, 1967. |
| Библиографическая ссылка | Izzard, C. F., The surface‐profile of overland flow, Trans. Amer. Geophys. Union, 6, 959–968, 1944. |
| Библиографическая ссылка | Izzard, C. F., Hydraulics of run‐off from developed surfaces, Proc. Highway Res. Board, 129–146, 1946. |
| Библиографическая ссылка | Liggett, J. A., D. A.Woolhiser, Difference solutions of the shallow‐water equation, J. Mech. Div., Amer. Soc. Civil. Eng., 93EM2, 39–71, 1967. |
| Библиографическая ссылка | Morgali, J. R., R. K.Linsley, Computer analysis of overland flow, J. Hydraul. Div., Amer. Soc. Civil Eng., 91HV3, 81–100, 1965. |
| Библиографическая ссылка | Ree, W. O., Some experiments on shallow flows over a grassed slope, Trans. Amer. Geophys. Union, 4, 653–656, 1939. |
| Библиографическая ссылка | Woolhiser, D. A., J. A.Liggett, Unsteady, one‐dimensional flow over a plane‐The rising hydrograph, Water Resour. Res., 33, 753–771, 1967. |
