Numerical simulation of solid-fluid 2-phaseflow of cutting system for cutter suction dredgers

• Autorzy: Zhang M. , Fan S. , Zhua H. , Han S.

Identyfikatory

DOI

10.2478/pomr-2018-0082

• Języki publikacji: EN

Abstrakty

EN

The study of the flow characteristics of the solid-fluid two phase flow in the cutter suction dredger is very important for exploring the slurry formation mechanism and optimizing the operational parameters. In this study, standard k-ε model and Multiple Reference Frame are applied to numerically simulate flow field in and around the cutting system, then with the steady convergent result of the simulation as the initial condition, Discrete Phase Mode is used to solve the particle motion equation by fully coupling the continuous phase and the particles . The influence of suction flow velocity and cutter’s rotating speed on particles suction are analyzed, and effectively suctioned particles numbers are also quantitatively studied. The simulation result shows that the DPM model is able to simulate the movement of particles in and around the cutter suction dredger’s cutting system, in the fluid flow filed velocity vector and pressure distribution on different planes show different characteristics, and under higher suction velocity and lower cutter rotating speed more particles are suctioned into the suction inlet. The results can help better understand flow characteristics of solidfluid 2-phase-flow of cutter suction dredger’s cutting system, and provide theoretical support for relative system design and operational parameters optimization.

Słowa kluczowe

EN

numerical simulation; solid-fluid; DPM; cutting system; cutter suction dredger

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2018
• Tom: S 2
• Strony: 117--124
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Zhang M.

• School of Energy and Power Engineering, Wuhan University of Technology

autor

Fan S.

• School of Energy and Power Engineering, Wuhan University of Technology

autor

Zhua H.

• School of Energy and Power Engineering, Wuhan University of Technology

autor

Han S.

• School of Energy and Power Engineering, Wuhan University of Technology

Bibliografia

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• 10. Min Zhang, Shidong Fan, Haoyu Zhang: Flow Field Analysis of Cutter Head for Cutter Suction Dredgers. Proceedings of 2016 International Conference on Humancentered Computing, Sri Lanka, pp.578-579, 2016
• 11. Xia Mi, Li Yi, Li Fengqin: Numerical Simulation of Solid Phase Movement and Distribution in the Solid-liquid Two Phase Flow Centrifugal Pump. Journal of Mechanical and Electrical Engineering. Vol. 32, no. 12 ,pp.1555-1557, 2015
• 12. Vakamalla Teja Reddy, Vadlakonda Balraju, Aketi V. Asha Kumari, Mangadoddy Narasimha: Multiphase CFD Modeling of Mineral Separators Performance: Validation Against Tomography Data. Transactions of the Indian Institute Of Met-als.Vol.70, no.2 ,pp.323-340, 2016
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• 14. Zhang Tao, Yang Chenjun, Song Baowei: Investigations on the Numerical Simulation Method for the Open-water Performance of Contra

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).