Application of Extended Frequency Response Method to a Runoff System

Tanaka, Gaku; Fujita, Mutsuhiro; Hamouda, Luai; Kudo, Mutsunobu

doi:10.2208/prohe.42.181

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…F : average rainfall intensity By substituting egs. (4), (5) and (6) into egs. (1) and(2), the following equations can be obtained.…”

Section: St Venant Equations and Related Modelsmentioning

confidence: 99%

“…Originally, the EFRM was first used in control engineering for analyzing nonlinear elements such as threshold and saturation. The notion of EFRM had already been used by Fujita and Kudo (1995) 4, and Fujita (1998, 1999) 5,6) to describe the characteristics of runoff models. These studies focused only on the gain characteristics of storage function model and kinematic wave model.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of the Equivalent Frequency Response Method to Nonlinear Runoff System

Hamouda

Fujita

2001

Doboku Gakkai Ronbunshu

Self Cite

View full text Add to dashboard Cite

This paper proposes a new approach using the Equivalent Frequency Response Method (EFRM) for analyzing St. Venant model for unsteady one-dimensional flow along with its related models such as kinematic wave, diffusion wave and gravity wave models with two different lower stream boundary conditions. It is possible to calculate the gain, time lag, and impulse response function by the proposed method. Moreover, a new criterion is presented for evaluating the validity of each model for a range of Froude and kinematic wave number based on the obtained impulse response function. Finally, this paper suggests the possibility of applications of EFRM to real runoff analysis.

show abstract

“…F : average rainfall intensity By substituting egs. (4), (5) and (6) into egs. (1) and(2), the following equations can be obtained.…”

Section: St Venant Equations and Related Modelsmentioning

confidence: 99%