Sediment mathematical model for sand ridges and sand waves

LI Daming; WANG Xiao; WANG Xin; LI Yangyang

doi:10.1007/s13131-016-0853-6

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Article Navigation > Acta Oceanologica Sinica > 2016 > 35(5): 141-149

LI Daming, WANG Xiao, WANG Xin, LI Yangyang. Sediment mathematical model for sand ridges and sand waves[J]. Acta Oceanologica Sinica, 2016, 35(5): 141-149. doi: 10.1007/s13131-016-0853-6

Citation:

LI Daming, WANG Xiao, WANG Xin, LI Yangyang. Sediment mathematical model for sand ridges and sand waves[J]. Acta Oceanologica Sinica, 2016, 35(5): 141-149. doi: 10.1007/s13131-016-0853-6

LI Daming, WANG Xiao, WANG Xin, LI Yangyang. Sediment mathematical model for sand ridges and sand waves[J]. Acta Oceanologica Sinica, 2016, 35(5): 141-149. doi: 10.1007/s13131-016-0853-6

Citation:

LI Daming, WANG Xiao, WANG Xin, LI Yangyang. Sediment mathematical model for sand ridges and sand waves[J]. Acta Oceanologica Sinica, 2016, 35(5): 141-149. doi: 10.1007/s13131-016-0853-6

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Sediment mathematical model for sand ridges and sand waves

doi: 10.1007/s13131-016-0853-6

1.
State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China
2.
State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;National Ocean Technology Center, State Oceanic Administration, Tianjin 300112, China

Received Date: 2015-04-03
Rev Recd Date: 2015-10-15

Abstract

Abstract

A new theoretical model is formulated to describe internal movement mechanisms of the sand ridges and sand waves based on the momentum equation of a solid-liquid two-phase flow under a shear flow. Coupling this equation with two-dimensional shallow water equations and wave reflection-diffraction equation of mild slope, a two-dimensional coupling model is established and a validation is carried out by observed hydrogeology, tides, waves and sediment. The numerical results are compared with available observations. Satisfactory agreements are achieved. This coupling model is then applied to the Dongfang 1-1 Gas Field area to quantitatively predict the movement and evolution of submarine sand ridges and sand waves. As a result, it is found that the sand ridges and sand waves movement distance increases year by year, but the development trend is stable.
- internal movement mechanisms,
- sand ridges and sand waves,
- two-dimensional coupling model,
- migration

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References(17)

References

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