Chapter
May 18, 2016
A Multi-Phase Mathematical Model for Gravity Currents
Authors: Liang Zhao, Chinghao Yu, and Zhiguo He [email protected]Author Affiliations
Publication: World Environmental and Water Resources Congress 2016
Abstract
A improved multi-phase numerical model by direct numerical simulation (DNS) is developed to simulate gravity current that is frequency encountered in both natural and artificial environments. Several two-dimensional (2D) numerical simulations are conducted. Typical characteristics of gravity currents can be captured by our numerical method. The time-dependent front location of gravity currents is compared with data from numerical and laboratory experiments. The satisfying consistence demonstrates the present 2D numerical simulation can well reproduce the development of gravity currents. The influence of suspended particles to turbidity currents is also investigated. After an initial stage, gravity current gradually advances faster than turbidity current as the suspended particles are constantly lost. The simulation results can provide a detailed research into gravity and turbidity currents.
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Published In
World Environmental and Water Resources Congress 2016
Pages: 433 - 441
Copyright
© 2016 American Society of Civil Engineers.
History
Published online: May 18, 2016
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Authors
Affiliations
Liang Zhao
Ocean College, Zhejiang Univ., Hangzhou 310058, China.
Chinghao Yu
Ocean College, Zhejiang Univ., Hangzhou 310058, China.
Ocean College, Zhejiang Univ., Hangzhou 310058, China. E-mail: [email protected]
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