Flow resistance of gravel bed channels
Flow resistance of gravel bed channels作者机构：Multech Engineering Consultants
出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))
年 卷 期：2014年第29卷第1期
页 面：126-132页
核心收录：
学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 080103[工学-流体力学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 080104[工学-工程力学] 0903[农学-农业资源与环境] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0801[工学-力学（可授工学、理学学位）]
主 题：Flow resistance Darcy-Weisbach friction factor Relative roughness Relative submergence Gravel bed channels Open channels
摘 要：Existing resistance formulas produce a wide range of friction-factor estimates for gravel bed *** purpose of this paper is to develop a reliable resistance formula in terms of the Darcy-Weisbach friction factor/ Published data were screened and used to establish the *** existing formulas have considered that/is a function of relative roughness D84/R only,where R is the hydraulic radius and D84is the particle size referred to the intermediate diameter that equals or exceeds that of 84 percent of bed *** this paper,/is considered as a function of Froude number in addition to the relative roughness./for D84/R1 displays a different trend than that for D84/R***/formula for D84/R1 has been established.
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