Chapter
Apr 26, 2012
Simulation of Sediment Suspension Using Two-Phase Approach
Authors: Tian-Jian Hsu [email protected], J. T. Jenkins [email protected], and Philip L.-F. Liu [email protected]Author Affiliations
Publication: Ocean Wave Measurement and Analysis (2001)
Abstract
A dilute sediment transport model based on the two-phase mass and momentum equations is introduced with appropriate closures on the fluid turbulence. Due to the presence of the sediment phase, an important damping mechanism in the fluid turbulent kinetic energy equation is derived and modeled. The proposed model is solve both analytically and numerically to study the sediment transport experiment in a steady uniform open channel flow. In the analytical approach, we made additional approximations in order to obtain simple solutions. The analytical solution show clear improvement, which is due to a better modeling on the additional damping mechanism in the fluid turbulent kinetic energy equation, on the calculated concentration profile as compare with the solutions from the Rouse formula. A numerical model, which solves the complete dilute two-phase equations, is also developed. The accuracy of the numerical is checked with the experimental data. With an appropriate closure on the particle stress, the numerical model can be extended to solve the sheet-flow problems in the future.
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© 2002 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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School of Civil and Environmental Engineering. E-mail: [email protected]
M.ASCE
Department of Theoretical and Applied Mechanics. E-mail: [email protected]
F.ASCE
School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.