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1. Experimental Studies of Diffuser Fins Effect in Pump-Turbine Draft Tube on Pressure Pulsations in Turbine Mode NSTL国家科技图书文献中心

Andrii Rusanov |  Oleg Khoryev... -  《Advances in Mechanical and Power Engineering II》 -  International Conference on Advanced Mechanical and Power Engineering - 2025, - 23~32 - 共10页

摘要: pulsation characteristics in the draft tube diffuser. | One of the methods of reducing the level of |  pressure pulsations in the flow part of a Francis pump | -turbine for a heads up to 200 m by installing |  straightening fins in the suction pipe diffuser is
关键词: Pump-Turbine |  Runner |  Draft tube |  Hydrodynamic test stand |  Experimental studies |  Pressure fluctuations

2. Intensity recognition of vortex ropes in draft tube of a prototype pump turbine using an optimized CNN-BiLSTM framework with multi-head self-attention mechanism NSTL国家科技图书文献中心

Zheng X. |  Zeng L.... -  《Journal of Energy Storage》 - 2025,106(Jan.) - 1.1~1.12 - 共12页

摘要: draft tube (DT) is a typical hydraulic instability of | © 2024 Elsevier LtdSwirling vortex rope in |  a pump turbine (PT) in the pumped storage plant |  (PSP). In view of the potential hazards of the vortex |  rope, accurate recognition of its intensity is of
关键词: Draft tube |  Pressure fluctuation |  Pump turbine |  Pumped hydro energy storage |  Unsteady flow |  Vortex rope

3. Effects of the system parameters on the extreme low pressure of the draft tube during the successive load rejection using a systematic analysis framework NSTL国家科技图书文献中心

Tingxin Zhou |  Xiaodong Yu... -  《Energy》 - 2025,320(Apr.1) - 135130.1~135130.14 - 共14页

摘要: the minimum pressure in the draft tube (H_(DT-min | As a flexible and adjustable source of high | -quality clean energy, pumped storage power stations |  (PSPs) play a crucial role in stabilizing power grids | . The transient performance of PSPs during transition
关键词: Pumped storage power station |  Fine modeling |  Successive load rejection |  Parameter optimization |  Systematic analysis framework

4. Experimental investigation of vortex rope mitigation in a 10 MW axial turbine NSTL国家科技图书文献中心

Sundstrom L.R.J. |  Shiraghaee S.... -  《Renewable energy》 - 2025,238(Jan.) - 1.1~1.12 - 共12页

摘要: in the draft tube is investigated experimentally on | . Pressure measurements in the draft tube, runner chamber |  draft tube diminishes for higher heads. | © 2024 The AuthorsIncreased utilization of |  hydraulic turbines as a regulatory tool for electrical
关键词: Hydropower |  Off-design operation |  Rotating vortex rope |  Turbine efficiency |  Vortex rope mitigation

5. Mitigating cavitation effects on Francis turbine performance: A two-phase flow analysis NSTL国家科技图书文献中心

Altintas B. |  Celebioglu K.... -  《Ocean engineering》 - 2025,317(Feb.1) - 1.1~1.23 - 共23页

摘要: of cavitation, including traveling bubble and draft |  tube cavitation, under overload operating conditions | © 2024 Elsevier LtdDue to their ability to |  operate over a wide range of flow rates and generate |  high power, Francis turbines are the most widely used
关键词: Cavitation |  CFD |  Experiment |  Francis turbine |  Multi-phase

6. Design of a novel fluidized bed photoreactor and equipment parameters optimization and application in removing aniline NSTL国家科技图书文献中心

Cao, Y. |  Ji, D.... -  《International Journal of Environmental Science and Technology》 - 2025,22(9) - 8033~8044 - 共12页

摘要: the ratio of the height of the draft tube to the | This research presents a new type of three | -phase internal circulating fluidized bed-external |  (annular) photocatalytic reactor. This new type of |  fluidized bed photocatalytic reactor has the advantages of
关键词: Aniline |  Computational fluid dynamics |  Fluidized bed photoreactor |  Parameters |  TiO2/activated carbon

7. Investigation on the Performance of Draft Tube by Numerical and Experimental Approach: A Review NSTL国家科技图书文献中心

K. Sathish |  C. Vanchimuthu... -  《Advances in Thermal Engineering: Select Proceedings of ICFAMMT 2024》 -  International Conference on Futuristic Advancements in Materials, Manufacturing and Thermal Sciences - 2024, - 339~347 - 共9页

摘要: installations with optimized draft tube designs. The |  investigation of different draft tube configurations |  unique draft tube. A suitable draft tube design to |  the investigation. The shape of the draft tube |  and velocity of the draft tube.
关键词: Elbow draft tube |  Pressure recovery factor |  Kaplan turbine |  Overall efficiency |  Velocity of flow |  Kinetic energy |  CFD analysis

8. A draft tube to improve mixing in swirling flow-based solid-liquid mixing reactors NSTL国家科技图书文献中心

Zhu Yang |  ThomasHolemans... -  《Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers》 - 2024,206 - 226~241 - 共16页 - 被引量:2

摘要: inclusion of a draft tube in the reactor center |  influence of the draft tube on the fluctuating velocities | The Swirl Flow Reactor (SFR) is a recently |  proposed specially designed reactor to address challenges |  of solid-liquid mixing for high-temperature and
关键词: Swirl Flow Reactor |  Solid-liquid mixing |  Draft tube |  Coanda effect |  Computational Fluid Dynamics |  Coherent structure identification

9. Numerical study of peripheral air injection in draft tube of a Francis turbine at upper and normal part load operations NSTL国家科技图书文献中心

SUBODH KHULLAR |  SANDEEP KUMAR... -  《Sadhana: Academy Proceedings in Engineering Science》 - 2024,49(1) - 81-1~81-13 - 共13页 - 被引量:1

摘要: components. Flow instabilities in the draft tube |  peripheral air injection in the draft tube is analysed in |  effect of injected air on the draft tube flow field at |  pressure recovery in the draft tube. | Francis turbines are adversely affected when
关键词: Francis turbine |  Draft tube |  Vortex rope |  Part load operation |  Air injection

10. A four-way coupled numerical investigation of draft tube baffled crystallizer NSTL国家科技图书文献中心

Darand J. |  Fashami A.... -  《Journal of Crystal Growth》 - 2024,648 - 共5页 - 被引量:1

摘要: liquid–solid two-phase turbulent flow in a Draft Tube |  within the draft tube and the distance between the | © 2024 Elsevier B.V.In the present paper, the |  Baffled crystallizer has been simulated using |  Computational Fluid Dynamics. In this respect, multiphase
关键词: Breakage and aggregation rates |  Computational fluid dynamics |  Crystal |  Draft tube baffled crystallizer |  Four-way coupling |  Particle growth |  Population balance equation |  Zero liquid discharge desalination system
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