Numerical simulation of flow dynamics in a tidal river under various upstream hydrologic conditions

To ensure the secure buried depth of the subway tunnel which was routed underneath the Fenghuahe River, a two-dimensional tidal current and sediment transportation model was established to simulate the maximum scour depth of the riverbed. The conclusions were shown as follows: the most disadvantageous hydrologic condition was a combination of the 200-year return period flood in the Fenghuahe River and the 5-year highest tide in the Yonghe River. The maximum scour depth of the riverbed above the subway tunnel was 1.19 m and the lowest elevation of the riverbed cross-section was -8.56m. The results could provide technical support for the safety of subway design.

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Nonlinear analysis of the individual difference corresponding to honk effect for car-following theory under V2X environment

International Journal of Modern Physics C ◽

10.1142/s0129183120501570 ◽

2020 ◽

Vol 31 (11) ◽

pp. 2050157

Author(s):

Guanghan Peng ◽

Li Qing

Keyword(s):

Numerical Simulation ◽

Traffic Flow ◽

Individual Difference ◽

Driving Behavior ◽

Flow Dynamics ◽

Traffic Modeling ◽

Car Following ◽

Car Following Model ◽

The Individual ◽

Honk Effect

Originally, we would like to use traffic modeling for car-following model to recover the individual difference of driving behavior corresponding to honk effect under V2X environment. Traffic stability is related to the individual difference resulting from the honk effect, which states that the individual difference of honk effect plays a different significant impact on the traffic stability. Furthermore, the slowly varying behaviors are closely consistent with the individual difference corresponding to the honk effect for long waves. Numerical simulation indicates that the individual difference of driving behavior plays a different role on traffic flow dynamics under honk environment in car-following model.

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Numerical simulation on wave behaviour and flow dynamics of laminar-wavy falling films: Effect of surface tension and viscosity

The Canadian Journal of Chemical Engineering ◽

10.1002/cjce.20512 ◽

2011 ◽

Vol 90 (1) ◽

pp. 61-68 ◽

Cited By ~ 7

Author(s):

Shoushi Bo ◽

Xuehu Ma ◽

Zhong Lan ◽

Hongxia Chen ◽

Jiabin Chen

Keyword(s):

Numerical Simulation ◽

Surface Tension ◽

Flow Dynamics ◽

Falling Films ◽

Effect Of Surface

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Numerical Simulation of Flooding Effects on Estuarial Reach after Pier’s Construction

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.212-213.752 ◽

2012 ◽

Vol 212-213 ◽

pp. 752-758

Author(s):

Dong Po Sun ◽

Li Da Zhang ◽

Xiao Lei Zhang ◽

Peng Tao Wang

Keyword(s):

Numerical Simulation ◽

Flow Pattern ◽

River Channel ◽

Tidal River ◽

Left Bank ◽

Engineering Project ◽

Important Condition ◽

Flow Capacity ◽

Flood Period ◽

Will Force

Recent years, there were many piers constructed in tail reach of Yongjiang River. This made river channel in estuarial reach shrank gradually, which in turn influenced the shipping ability of estuarial area. Taking Qingshuipu pier that would be constructed in the left bank of Yongjiang river estuarial reach as an example, a numerical simulation have been done, and resistance parameter had been proved reasonably by author. The flow pattern, backwater height and channel scour-fill intensity near the pier trestle have been studied in different kinds of flood and tidal stencils. In engineering project, the trestle prevents flood from diffusing by dipping into the river. Meanwhile, backwater and deposition occur in the bank, which have impact on flow capacity. If the siltation in the area accumulates, then, point bar could not be scoured adequately in great flood period, which will force mainstream to move towards right bank. Based on the backwater and local scouring and silting situation near the pier trestle, the author puts forward a revised proposal and gains a preferable result. So, reasonable pier arrangement is the important condition for keeping steady and healthy to the tail reach of tidal river.

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Numerical Simulation of Flow Dynamics during Macropore-Subsurface Drain Interactions Using HYDRUS

Vadose Zone Journal ◽

10.2136/vzj2007.0148 ◽

2008 ◽

Vol 7 (3) ◽

pp. 909-918 ◽

Cited By ~ 27

Author(s):

Onur Akay ◽

Garey A. Fox ◽

Jirka Šimůnek

Keyword(s):

Numerical Simulation ◽

Flow Dynamics

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Numerical simulation of flow dynamics in the periodic regime in an idealized thermoacoustic engine

Magnetohydrodynamics ◽

10.22364/mhd.51.3.20 ◽

2015 ◽

Vol 51 (3) ◽

pp. 601-608

Author(s):

L. Ma ◽

C. Weisman ◽

D. Baltean-Carlès ◽

I. Delbende ◽

L. Bauwens

Keyword(s):

Numerical Simulation ◽

Flow Dynamics ◽

Periodic Regime ◽

Thermoacoustic Engine

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Numerical Simulation Study of Soluble and Conservative Liquid Chemicals Diffusion in Tidal River

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.864-867.1427 ◽

2013 ◽

Vol 864-867 ◽

pp. 1427-1432

Author(s):

Jian Wei Zhang ◽

Wan Qing Wu

Keyword(s):

Numerical Simulation ◽

Simulation Study ◽

Hydrodynamic Model ◽

Moving Boundary ◽

Transport Model ◽

Three Dimensional ◽

Concentration Field ◽

Pollutant Transport ◽

Tidal River ◽

Simulation Results

Based on three-dimensional hydrodynamic model, moving boundary technique and embedded pollutant transport model, the concentration field of the soluble and conservative liquid chemicals spilled into the tidal river was calculated and the chemicals movement around a jetty at DA Liaohe was simulated. By analyzing the simulation results, the chemicals motion law with tide and their concentration field on and in water were deduced.

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