Analysis of hydraulic characteristics of fluid multiplier fish pump based on CFD simulation

Liu, Andong; Zhang, Chenglin; Zhang, Yulei; Zhang, Yufei

doi:10.1016/j.oceaneng.2023.113854

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…The hydraulic stability of the pump device is also an important factor affecting the efficiency of the pumping station [15][16][17]. Stall [18,19], cavitation [20,21], and inlet vortices [22,23] are unstable water phenomena that occur during the operation of the pump unit.…”

Section: Introductionmentioning

confidence: 99%

Research on Optimization of the Bulb Form of the Bulb Tubular Pump Device for a Low-Head Agricultural Irrigation Pumping Station

Zhang,

Liu,

et al. 2023

Agriculture

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A bulb tubular pump unit is a horizontal tubular pump unit composed of a water pump and bulb with an electric motor installed. Electric motors, transmission equipment, and bearings are usually placed in the bulb. The bulb is located in the flow channel and has a relatively narrow space. Therefore, the shape of the bulb has a significant influence on the flow pattern and pump efficiency in the flow channel. In this study, the CFX 19.2 software was employed to optimize the bulb hydraulically according to its geometry and parameters. The research results indicate that the flow pattern at the tail of the elliptical bulb was better, the hydraulic loss at the bulb section was small, and the device efficiency was higher than that at the tail, which was round. The streamlined support had small flow resistance, minimal hydraulic loss, and a high pump unit head and efficiency. Nine schemes were selected, and the geometrical characteristics and parameters of the bulb were determined as follows: the shape of the tail of the bulb was oval, the bulb ratio was 0.96, and the shape of the support parts was streamlined. The results hold important reference significance to improve efficiency and broaden the operating conditions of bulb tubular pump devices.

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Section: Introductionmentioning

confidence: 99%

Research on Optimization of the Bulb Form of the Bulb Tubular Pump Device for a Low-Head Agricultural Irrigation Pumping Station

Zhang,

Liu,

et al. 2023

Agriculture

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show abstract

Coordination of energy loss and fish friendliness for a low-head tubular-pump blade based on a multi-objective optimization model

Pan,

Wu,

Zhang

et al. 2024

Renewable Energy

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Numerical Simulation and Experimental Study of a Small-Scale Vacuum Fish Pump

Tian,

Qu,

Che

et al. 2024

JMSE

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The existing vacuum fish pump is too large and difficult to move, which is difficult to apply to small fishing vessels. However, the development of a small vacuum fish pump is not a single scaling of the existing vacuum fish pump but requires the support of relevant experiments and simulation theories. In this study, a vacuum fish pump suitable for small fishing vessels was developed. Firstly, a numerical model of the internal flow field during the vacuum fish pump’s working process was established using computational fluid dynamics (CFDs) and verified its effectiveness by physical experiments. It is found that the VOF model can well predict the variation of the volume fraction of the liquid phase in the whole calculation area with time during the suction or drainage process of the vacuum fish pump. Then, the internal flow field characteristics of the fish pump under different working conditions were simulated, and the rationality of the design of the fish pump was evaluated according to the numerical results. Finally, a separate physical experiment was carried out on grass carp, carp, crucian carp, silver carp, and bighead carp, respectively, and the capture efficiency and corresponding fish damage rate for different fish were analyzed. The experimental and numerical results show that the vacuum suction fish pump can achieve efficient and automatic suction and transport of live fish.

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Analysis of hydraulic characteristics of fluid multiplier fish pump based on CFD simulation

Cited by 3 publications

References 11 publications

Research on Optimization of the Bulb Form of the Bulb Tubular Pump Device for a Low-Head Agricultural Irrigation Pumping Station

Research on Optimization of the Bulb Form of the Bulb Tubular Pump Device for a Low-Head Agricultural Irrigation Pumping Station

Coordination of energy loss and fish friendliness for a low-head tubular-pump blade based on a multi-objective optimization model

Numerical Simulation and Experimental Study of a Small-Scale Vacuum Fish Pump

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