Investigation of open channel flow with unsubmerged rigid vegetation by the lattice Boltzmann method

Jing, Hefang; Cai, Ying; Wang, Weihong; Guo, Yakun; Li, Chunguang; Bai, Yuchuan

doi:10.1007/s42241-019-0072-7

Cited by 13 publications

(2 citation statements)

References 24 publications

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“…Downing-Kunz and Stracey [5] explores the hydrodynamic effects of free-floating large plant root canopy. Jing et al [6] applied the lattice Boltzmann method (LBM) to simulate the influence of density and arrangement mode on flow structure in rigid vegetation flume. Plew [7] used a rigid cylindrical model to replace floating vegetation, and described the flow field distribution of flow at different root depths of floating vegetation.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Water Flow Characteristics in Open Channels with Floating Rigid Vegetation Groups

Zhou

Jing

Wang

et al. 2022

Advances in Transdisciplinary Engineering

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To explore the water flow characteristics under the action of floating rigid vegetation groups, several laboratory tests are conducted in a flume of North Minzu University, in which floating rigid vegetation is replaced by glass rods. In the tests, two groups of vegetation are placed at different positions of the flume and the vegetation length into the water is changed. Experimental results show that both the upstream water level of the vegetation group and water surface slope along the way grow with the increasement of the length of the vegetation root. When vegetation root becomes longer, the flow velocity under the vegetation layer increases, while the flow velocity within the upper vegetation layer decreases. In addition, it can be also be found from the measured results that the turbulent kinetic energy of the flow increases as the length of the floating vegetation decreases in the water.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Water Flow Characteristics in Open Channels with Floating Rigid Vegetation Groups

Zhou

Jing

Wang

et al. 2022

Advances in Transdisciplinary Engineering

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“…e cantilever beam vibration and deflection are also studied in the field of hydraulics [14][15][16][17]. As aquatic vegetation is often submerged and highly flexible, it will deflect and interact with the ambient flow environment.…”

Section: Introductionmentioning

confidence: 99%

Solution of the Static Deflection Mode Shape Function of the Cantilever Beam under Transverse Flow Based on the Boundary Shooting Method

Wang

Zhou

2021

Science and Technology of Nuclear Installations

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According to the characteristics of the reactor internal structure of nuclear power plants, the vibration of the secondary core support pillar in water can be modeled as the vibration of the cantilever beam structure under the action of transverse flow, and its first beam mode is highly likely to be activated. It is thus necessary to dedicate a separate study on the first-order beam mode. In this work, we study the secondary core support pillar in nuclear reactor AP1000 under the action of transverse flow and focus on the derivation of its static cantilever deflection mode shape function in order to lay a foundation for the calculation of hydrodynamic added mass and frequency for the nuclear reactor internal components and their structural integrity evaluation. First, we proposed a set of nonlinear differential equations for the analysis of the single cantilever beam. Second, to solve the nonlinear differential equations, we used a boundary shooting framework in combination with the Runge–Kutta method. The results of the numerical simulation agree with the analytical solution to a very high degree, which demonstrates the effectiveness of the simulation method. Finally, we solved the static deflection mode shape function of the secondary core support pillar under the normal operating conditions. The nonlinear differential model and simulation method proposed in this paper can be used to solve the static cantilever deflection mode shape function of the equipment support tube.

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Simulation of pollutant diffusion in vegetation open channel based on LBM-CA method

Wang

Zhuo

Jia

et al. 2023

Environ Sci Pollut Res

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Investigation of open channel flow with unsubmerged rigid vegetation by the lattice Boltzmann method

Cited by 13 publications

References 24 publications

Experimental Study on Water Flow Characteristics in Open Channels with Floating Rigid Vegetation Groups

Experimental Study on Water Flow Characteristics in Open Channels with Floating Rigid Vegetation Groups

Solution of the Static Deflection Mode Shape Function of the Cantilever Beam under Transverse Flow Based on the Boundary Shooting Method

Simulation of pollutant diffusion in vegetation open channel based on LBM-CA method

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