Determination of Form Friction Factor Academic Article

abstract

• Friction factor plays a fundamental role in hydraulic analysis and design. In coarse-bed rivers friction factor depends on grain size and bed forms. Considering boundary-layer characteristics, this study first determines the total friction factor in gravel-bed rivers with bed forms. Then it determines the grain friction factor by the Keulegan and the Shields parameter methods and compares these methods. Finally it determines the form friction factor by subtracting the grain friction factor from the total friction factor. Field observations are employed to test the methods. 2010 ASCE.

authors

• Singh, Vijay

published proceedings

• JOURNAL OF HYDROLOGIC ENGINEERING

author list (cited authors)

• Afzalimehr, H., Singh, V. P., & Najafabadi, E. F.

citation count

• 12

complete list of authors

• Afzalimehr, Hossein||Singh, Vijay P||Najafabadi, Elham Fazel

publication date

• March 2010

publisher

• American Society of Civil Engineers (ASCE)  Publisher

published in

• Journal of Hydrologic Engineering - ASCE  Journal

keywords

• Bed Forms
• Boundary-layers Characteristics
• Friction Factor
• Shields Parameter

Digital Object Identifier (DOI)

• 10.1061/(ASCE)HE.1943-5584.0000175

start page

• 237

end page

• 243

volume

• 15

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1061%2F%28asce%29he.1943-5584.0000175