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A Simplified Stochastic Jump Model for Suspended Sediment Movement during Floods
A stochastic jump model of particle displacement is derived to simulate suspended sediment transport in extreme flow environments. In this model, the movement of a suspended sediment particle in turbulent flows is modeled as a stochastic jump diffusion process, composed of a drift term, a random term and a jump term. The jump term is used to describe the behavior of particles in response to floods. The drift motion and a Brownian type motion due to turbulence are created to model the transport of suspended sediment in flows without the presence of floods. Both the frequency and the intensity of the floods are crucial to particle movement during floods. The Poisson process is characterized to reflect the frequency of the flood occurrence. The jump amplification factor is to be quantified to reflect the physical characteristics of the flood events.
A Simplified Stochastic Jump Model for Suspended Sediment Movement during Floods
A stochastic jump model of particle displacement is derived to simulate suspended sediment transport in extreme flow environments. In this model, the movement of a suspended sediment particle in turbulent flows is modeled as a stochastic jump diffusion process, composed of a drift term, a random term and a jump term. The jump term is used to describe the behavior of particles in response to floods. The drift motion and a Brownian type motion due to turbulence are created to model the transport of suspended sediment in flows without the presence of floods. Both the frequency and the intensity of the floods are crucial to particle movement during floods. The Poisson process is characterized to reflect the frequency of the flood occurrence. The jump amplification factor is to be quantified to reflect the physical characteristics of the flood events.
A Simplified Stochastic Jump Model for Suspended Sediment Movement during Floods
Man, Chuanjian (author) / Tsai, Christina W. (author)
World Environmental and Water Resources Congress 2007 ; 2007 ; Tampa, Florida, United States
2007-05-11
Conference paper
Electronic Resource
English
A Simplified Stochastic Jump Model for Suspended Sediment Movement during Floods
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