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Cai, H. (author), Toffolon, Marco (author), Savenije, Hubert (author), Yang, Qingshu (author), Garel, Erwan (author)
When different tidal constituents propagate along an estuary, they interact because of the presence of nonlinear terms in the hydrodynamic equations. In particular, due to the quadratic velocity in the friction term, the effective friction experienced by both the predominant and the minor tidal constituents is enhanced. We explore the...
journal article 2018
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Cai, H. (author), Toffolon, Marco (author), Savenije, Hubert (author)
An analytical model is used to investigate the resonant behavior in a semi-closed channel. The main integral quantities of the tidal wave are obtained by means of a linearized one-dimensional model as a function of three dimensionless parameters, representing cross-section convergence, friction and distance to the closed boundary. Arbitrary...
journal article 2016
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Diederen, D. (author), Savenije, H.H.G. (author), Toffolon, M. (author)
We present a new equation describing the hydrodynamics in infinitely long tidal channels (i.e., no reflection) under the influence of oceanic forcing. The proposed equation is a simple relationship between partial derivatives of water level and velocity. It is formally derived for a progressive wave in a frictionless, prismatic, tidal channel...
journal article 2015
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Diederen, D. (author), Savenije, H.H.G. (author), Toffolon, M. (author)
journal article 2015
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Cai, H. (author), Savenije, H.H.G. (author), Toffolon, M. (author)
The effect of river discharge on tidal damping in estuaries is explored within one consistent theoretical framework where analytical solutions are obtained by solving four implicit equations, i.e. the phase lag, the scaling, the damping and the celerity equation. In this approach the damping equation is obtained by subtracting the envelope...
journal article 2014
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Cai, H. (author), Savenije, H.H.G. (author), Toffolon, M. (author)
The effect of river discharge on tidal damping in estuaries is explored within one consistent theoretical framework where analytical solutions are obtained by solving four implicit equations, i.e., the phase lag, the scaling, the damping and the celerity equation. In this approach the damping equation is obtained by subtracting the envelope...
journal article 2013
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Cai, H. (author), Savenije, H.H.G. (author), Toffolon, M. (author)
This paper explores different analytical solutions of the tidal hydraulic equations in convergent estuaries. Linear and quasi-nonlinear models are compared for given geometry, friction, and tidal amplitude at the seaward boundary, proposing a common theoretical framework and showing that the main difference between the examined models lies in...
journal article 2012
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Toffolon, M. (author), Savenije, H.H.G. (author)
In this paper we extend the validity of the classical linear solution for tidal hydrodynamics including the effects of width and depth convergence. Reworking such a solution in the light of externally defined, dimensionless parameters we are able to provide simple relationships to predict the most relevant features of the tidal wave at the...
journal article 2011
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Savenije, H.H.G. (author), Toffolon, M. (author), Haas, J. (author), Veling, E.J.M. (author)
Analytical solutions of the one-dimensional hydrodynamic equations for tidal wave propagation are now available and, in this paper, presented in explicit equations. For given topography, friction, and tidal amplitude at the downstream boundary, the velocity amplitude, the wave celerity, the tidal damping, and the phase lag can be computed. The...
journal article 2008
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