First‐Order Analysis of Open‐Channel Flow

Autor:	Mark A. Cesare
Rok vydání:	1991
Předmět:	Return period Basis (linear algebra) Flood myth Operations research Hydraulics Mechanical Engineering law.invention Open-channel flow law Applied mathematics Hydraulic roughness Reliability (statistics) Water Science and Technology Civil and Structural Engineering Mathematics Return flow
Zdroj:	Journal of Hydraulic Engineering. 117:242-247
ISSN:	1943-7900 0733-9429
DOI:	10.1061/(asce)0733-9429(1991)117:2(242)
Popis:	The effects of uncertainty in Manning's roughness coefficient and the empirical nature of Manning's equation on return period of flood stages have been analyzed using first-order reliability methods (FORM). This method generally used for structural reliability was applied to hydraulics by using Manning's equation as the basis for a limit state function. This paper also describes a way to compare the FORM results, a safety index, to the results of the traditional frequency method, a probability, by changing both to a return period.
Databáze:	OpenAIRE
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