☆ 4.7 Article

Analysis of two-phase flow in cavitation condition of pump-turbine based on dynamic mode decomposition method in turbine mode

JOURNAL OF ENERGY STORAGE (2022)

Related references

Note: Only part of the references are listed.

Article Green & Sustainable Science & Technology

Coherent structures decomposition of the flow field in Francis turbine runner under different working conditions

Bo Jiang et al.

Summary: The dynamic mode decomposition (DMD) method is used to decompose and analyze the flow field in the runner of a Francis turbine. The results show that the DMD method successfully decomposes the coherent structures corresponding to a single frequency and studies their temporal and spatial evolution. The high-frequency coherent structures induced by rotor-stator interaction (RSI) are the most stable under different working conditions, while the low-frequency coherent structures are mainly caused by short blade wake and flow separation under off-design conditions.

RENEWABLE ENERGY (2022)

Add to Collection

Article Green & Sustainable Science & Technology

Experimental Francis Turbine Cavitation Performances of a Hydro-Energy Plant

Wen-Tao Su et al.

Summary: An investigation was conducted on the cavitation characteristics of the Francis turbine and its influence on the hydraulic stability using flow visualization and acoustic emission methods. As the cavitation coefficient decreases, gap cavitation develops first, followed by airfoil cavitation. Airfoil cavitation causes variations in machine flow and head and reduces the amplitude of pressure pulsation.

SUSTAINABILITY (2022)

Add to Collection

Article Engineering, Civil

Cavitation mechanism in turbine runaway process of a pump-turbine

Xiaolong Fu et al.

Summary: This study investigates the effect of cavitation on pressure fluctuation in a pump-turbine through numerical simulations. The results show that the interaction between cavitation and backflow vortices increases the duration and range of vortices, and the two-phase flow model can accurately predict pressure fluctuations.

JOURNAL OF HYDRAULIC RESEARCH (2022)

Add to Collection

Article Green & Sustainable Science & Technology

Influence of leading-edge cavitation on impeller blade axial force in the pump mode of reversible pump-turbine

Di Zhu et al.

Summary: The study investigates the influence of leading-edge cavitation on impeller blade axial force in the pump mode of reversible pump-turbine through numerical simulation and experimental research. The axial force increases first and then decreases rapidly with the development of cavitation, with the largest increase being 5% and the largest decrease being 13%. The change of blade axial force with cavitation development is related to the cavitation occurring on the pressure surface or suction surface of the blade.

RENEWABLE ENERGY (2021)

Add to Collection

Article Mechanics

Euler-Lagrange study of cavitating turbulent flow around a hydrofoil

Ziyang Wang et al.

Summary: This study introduces a multi-scale Eulerian-Lagrangian approach to simulate cavitating turbulent flow around a Clark-Y hydrofoil and study bubble dynamics. Numerical predictions show good agreement with experimental data, and the influence of various parameters on the transformation between Euler and Lagrange models is analyzed.

PHYSICS OF FLUIDS (2021)

Add to Collection

Article Green & Sustainable Science & Technology

Experimental studies of unsteady cavitation at the tongue of a pump-turbine in pump mode

Zhiyi Yuan et al.

Summary: The paper investigates cavitation at the tongue of a pump-turbine in pump mode, identifying three regimes of bubble cavitation, cloud cavitation, and lock cavitation. The blade passing effect is the main cause of periodic collapsing or shedding of bubble clusters, while attached vortex and pressure gradient contribute to shedding at the developed cloud cavitation stage. Broadband sound in the range of 1000 Hz-2000 Hz can be used for cavitation detection.

RENEWABLE ENERGY (2021)

Add to Collection

Article Engineering, Aerospace

Modal Analysis of Fluid Flows: Applications and Outlook

Kunihiko Taira et al.

AIAA JOURNAL (2020)

Add to Collection

Article Green & Sustainable Science & Technology

Numerical investigation on inter-blade cavitation vortex in a Franics turbine

Longgang Sun et al.

RENEWABLE ENERGY (2020)

Add to Collection

Article Green & Sustainable Science & Technology

Development and application of the entropy production diagnostic model to the cavitation flow of a pump-turbine in pump mode

Cong Wang et al.

RENEWABLE ENERGY (2020)

Add to Collection

Article Green & Sustainable Science & Technology

Dynamic mode decomposition and reconstruction of tip leakage vortex in a mixed flow pump as turbine at pump mode

Yadong Han et al.

RENEWABLE ENERGY (2020)

Add to Collection

Article Energy & Fuels

Cavitation Characteristics and Hydrodynamic Radial Forces of a Reversible Pump-Turbine at Pump Mode

Ying-yuan Liu et al.

JOURNAL OF ENERGY ENGINEERING (2020)

Add to Collection

Article Mechanics

Verification and validation of Large Eddy Simulation of attached cavitating flow around a Clark-Y hydrofoil

Yun Long et al.

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW (2019)

Add to Collection

Article Green & Sustainable Science & Technology

Improving the cavitation inception performance of a reversible pump turbine in pump mode by blade profile redesign: Design concept, method and applications

Ran Tao et al.

RENEWABLE ENERGY (2019)

Add to Collection

Article Green & Sustainable Science & Technology

Dynamic mode decomposition of gas-liquid flow in a rotodynamic multiphase pump

Ming Liu et al.

RENEWABLE ENERGY (2019)

Add to Collection

Article Green & Sustainable Science & Technology

Dynamic mode decomposition of cavitating flow around ALE 15 hydrofoil

Ming Liu et al.

RENEWABLE ENERGY (2019)

Add to Collection

Review Engineering, Electrical & Electronic

A comprehensive review and proposed architecture for offshore power system

Rodney Itiki et al.

INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS (2019)

Add to Collection

Article Mechanics

Large eddy simulation and Euler-Lagrangian coupling investigation of the transient cavitating turbulent flow around a twisted hydrofoil

Xinping Long et al.

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW (2018)

Add to Collection

Review Green & Sustainable Science & Technology

A review of methods for vortex identification in hydroturbines

Yuning Zhang et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2018)

Add to Collection

Article Green & Sustainable Science & Technology

Cavitation behavior study in the pump mode of a reversible pump-turbine

Ran Tao et al.

RENEWABLE ENERGY (2018)

Add to Collection

Article Energy & Fuels

Designing Incidence-Angle-Targeted Anti-Cavitation Foil Profiles Using a Combination Optimization Strategy

Di Zhu et al.

ENERGIES (2018)

Add to Collection

Review Thermodynamics

Overview on recent developments in energy storage: Mechanical, electrochemical and hydrogen technologies

Riccardo Amirante et al.

ENERGY CONVERSION AND MANAGEMENT (2017)

Add to Collection

Article Chemistry, Physical

Numerical research of cavitation on Francis turbine runners

Kutay Celebioglu et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2017)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Proper orthogonal decomposition of time-resolved LIF visualization: scalar mixing in a round jet

Chuangxin He et al.

JOURNAL OF VISUALIZATION (2017)

Add to Collection

Review Engineering, Aerospace

Modal Analysis of Fluid Flows: An Overview

Kunihiko Taira et al.

AIAA JOURNAL (2017)

Add to Collection

Review Mechanics

A review of cavitation in hydraulic machinery

Xian-wu Luo et al.

JOURNAL OF HYDRODYNAMICS (2016)

Add to Collection

Article Engineering, Mechanical

The identification of coherent structures using proper orthogonal decomposition and dynamic mode decomposition

Qingshan Zhang et al.

JOURNAL OF FLUIDS AND STRUCTURES (2014)

Add to Collection

Article Mechanics

Sparsity-promoting dynamic mode decomposition

Mihailo R. Jovanovic et al.

PHYSICS OF FLUIDS (2014)

Add to Collection

Review Green & Sustainable Science & Technology

A new generation of small hydro and pumped-hydro power plants: Advances and future challenges

G. Ardizzon et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2014)

Add to Collection

Article Computer Science, Interdisciplinary Applications

Flow structures around a high-speed train extracted using Proper Orthogonal Decomposition and Dynamic Mode Decomposition

Tomas W. Muld et al.

COMPUTERS & FLUIDS (2012)

Add to Collection

Article Engineering, Mechanical

Application of the dynamic mode decomposition to experimental data

Peter J. Schmid

EXPERIMENTS IN FLUIDS (2011)

Add to Collection

Article Mechanics

Applications of the dynamic mode decomposition

P. J. Schmid et al.

THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS (2011)

Add to Collection

Review Green & Sustainable Science & Technology

Study of cavitation in hydro turbines-A review

Pardeep Kumar et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2010)

Add to Collection

Article Mechanics

A turbulent jet in crossflow analysed with proper orthogonal decomposition

Knud Erik E. Meyer et al.

JOURNAL OF FLUID MECHANICS (2007)

Add to Collection

Review Astronomy & Astrophysics

Cavitation in water: a review

Frederic Caupin et al.

COMPTES RENDUS PHYSIQUE (2006)

Add to Collection

Article Thermodynamics

Strategies for turbulence modelling and simulations

PR Spalart

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW (2000)

Add to Collection

© Peeref 2019-2024. All rights reserved.