Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

With current infrastructure, meeting the ever-growing demand for electrical energy across the globe is becoming increasingly difficult. The widespread adoption of both commercial and residential non-dispatchable renewable energy facilities, such as solar and wind, further taxes the stability of the electrical grid, often causing traditional fossil fuel power plants to operate at lower efficiency, and with increased carbon emissions. Hydropower, as a proven renewable energy technology, has a significant part to play in the future global electrical power market, especially as increasing demand for electric vehicles will further amplify the need for dispatchable energy sources during peak charging times. Even with more than a century of proven experience, significant opportunities still exist to expand the worldwide hydropower resources and more efficiently utilize existing hydropower installations. Given this context, this Special Issue of Energies intended to present recent developments and advancements in hydropower design and operation. This Special Issue includes five articles, authored by international research teams from Japan, Pakistan, Sweden, Norway, the United States, and China. The authors bring the collective expertise of government research laboratories, university professors, industry research engineers, computer scientists, and economists. The articles explore advancements in hydroturbine and pump-turbine design, power plant operation, auxiliary equipment design to mitigate environmental damage, and an exploration of community-owned small hydropower facilities.

Technology: general issues --- History of engineering & technology --- community development --- community ownership --- small hydropower --- SHP --- renewable energy --- crowdfunding --- FIT --- community-based business --- agricultural cooperative --- hydropower --- pumped hydro storage --- low-head --- counter-rotating --- pump-turbine --- transient sequences --- shutdown --- startup --- OpenFOAM --- CFD --- sand trap --- sediment transport --- particle --- multiphase --- hybrid power --- neural networks --- pumped-storage hydro --- solar --- photovoltaic --- pump turbine --- pump mode --- slight opening --- flow deflection --- dynamic meshing technique --- community development --- community ownership --- small hydropower --- SHP --- renewable energy --- crowdfunding --- FIT --- community-based business --- agricultural cooperative --- hydropower --- pumped hydro storage --- low-head --- counter-rotating --- pump-turbine --- transient sequences --- shutdown --- startup --- OpenFOAM --- CFD --- sand trap --- sediment transport --- particle --- multiphase --- hybrid power --- neural networks --- pumped-storage hydro --- solar --- photovoltaic --- pump turbine --- pump mode --- slight opening --- flow deflection --- dynamic meshing technique

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Hydropower is an essential part of the renewable energy sector. High efficiency, immediate availability, and safe operation of hydroelectric power plants are the three key issues in recent developments in the hydropower sector. This book brings together the latest achievements addressing these key factors. In addition, one contribution deals with the alternative harvesting of hydro energy from pivoted cylinders by generating flow-induced vibrations, which are unwanted phenomena in classical pump–turbine units.

Technology: general issues --- Environmental science, engineering & technology --- annular seal --- CFD --- dynamic coefficients --- fluid forces --- nonlinear dynamic model --- static eccentricity --- reversible hydraulic machines --- penstocks --- pressure pipelines --- performance tests --- flow rate measurements --- volumetric gauging method --- pressure-time method --- water-hammer --- pump-turbine --- flow patterns --- pressure pulsations --- similarities --- differences --- S-shaped characteristics --- runaway transient process --- VIV --- FIV --- renewable energy --- pivoted cylinder --- cross section --- geometry --- pump as turbine (PAT) --- Francis turbine --- calculation model --- efficiency --- hydropower --- computational fluid dynamics --- hydraulic efficiency --- Gibson method --- manifolds --- turbine --- thermodynamic method --- air cushion surge tank (ACST) --- air friction model --- flexible hydro power plants --- mechanistic model --- OpenHPL

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Hydropower is an essential part of the renewable energy sector. High efficiency, immediate availability, and safe operation of hydroelectric power plants are the three key issues in recent developments in the hydropower sector. This book brings together the latest achievements addressing these key factors. In addition, one contribution deals with the alternative harvesting of hydro energy from pivoted cylinders by generating flow-induced vibrations, which are unwanted phenomena in classical pump–turbine units.

Technology: general issues --- Environmental science, engineering & technology --- annular seal --- CFD --- dynamic coefficients --- fluid forces --- nonlinear dynamic model --- static eccentricity --- reversible hydraulic machines --- penstocks --- pressure pipelines --- performance tests --- flow rate measurements --- volumetric gauging method --- pressure-time method --- water-hammer --- pump-turbine --- flow patterns --- pressure pulsations --- similarities --- differences --- S-shaped characteristics --- runaway transient process --- VIV --- FIV --- renewable energy --- pivoted cylinder --- cross section --- geometry --- pump as turbine (PAT) --- Francis turbine --- calculation model --- efficiency --- hydropower --- computational fluid dynamics --- hydraulic efficiency --- Gibson method --- manifolds --- turbine --- thermodynamic method --- air cushion surge tank (ACST) --- air friction model --- flexible hydro power plants --- mechanistic model --- OpenHPL --- annular seal --- CFD --- dynamic coefficients --- fluid forces --- nonlinear dynamic model --- static eccentricity --- reversible hydraulic machines --- penstocks --- pressure pipelines --- performance tests --- flow rate measurements --- volumetric gauging method --- pressure-time method --- water-hammer --- pump-turbine --- flow patterns --- pressure pulsations --- similarities --- differences --- S-shaped characteristics --- runaway transient process --- VIV --- FIV --- renewable energy --- pivoted cylinder --- cross section --- geometry --- pump as turbine (PAT) --- Francis turbine --- calculation model --- efficiency --- hydropower --- computational fluid dynamics --- hydraulic efficiency --- Gibson method --- manifolds --- turbine --- thermodynamic method --- air cushion surge tank (ACST) --- air friction model --- flexible hydro power plants --- mechanistic model --- OpenHPL

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

The design and development of water turbines requires accurate methods for performance prediction. Numerical methods and modelling are becoming increasingly important tools to achieve better designs and more efficient turbines, reducing the time required in physical model testing. This book is focused on applying numerical simulations and models for water turbines to predict tool their performance. In this Special Issue, the different contributions of this book are classified into three state-of-the-art Topics: discussing the modelling of pump-turbines, the simulation of horizontal and vertical axis turbines for hydrokinetic applications and the modelling of hydropower plants. All the contributions to this book demonstrate the importance of the modelling and simulation of water turbines for hydropower energy. This new generation of models and simulations will play a major role in the global energy transition and energy crisis, and, of course, in the mitigation of climate change.

Technology: general issues --- History of engineering & technology --- tip leakage flow --- tubular turbine --- clearance discipline --- numerical calculation --- biological --- flap --- hydrodynamic performance --- stall --- CFD --- Computational Fluid Dynamics --- vertical axis water turbine --- overset mesh --- sliding mesh --- design Archimedes screw hydropower plant --- quick estimation method --- Archimedean screw --- fish safe/friendly --- multi-ASG --- hydropower plant --- hydro power plant --- small/micro/pico/low head hydro power plant --- computational fluid dynamics --- volume of fluid --- transition SST k-ω turbulence model --- wake --- fault diagnostics --- model-based fault detection --- fault tolerance --- fuzzy control --- hydrokinetic --- backwater --- inland hydrokinetic --- axial flow turbines --- multiphase pump --- integrated design --- Sparse Grid method --- numerical analysis --- flow field characteristics --- reversible water turbines --- guide vane profile change --- draft tube vortex belt --- pressure pulsation --- energy recovery factor --- pump-turbine --- entropy production --- vorticity --- energy loss --- numerical simulation --- n/a

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This Special Issue contains 12 papers devoted to fluid/structure interaction (FSI) problems. The main feature of the problems is an interface on which consistent boundary conditions for both the liquid and the solid regions are formulated. The presented studies cover a wide range of problems and methods for their solution, including problems of weak, or one-way interaction, in which the effect of interface deformation on the fluid flow can be neglected, as well as problems of the strong interaction, for which the interface change affects both the flow and the structure behaviour. The interest in FSI problems is very great due to their practical importance. Recent developments in engineering have led to advanced formulations of FSI problems. Some of them could not be formulated several years ago. The presented papers demonstrate progress in both numerical algorithms, mathematical apparatus and advanced computational techniques. In this issue, we have tried to collect different FSI problems, new mathematical and numerical approaches, new numerical techniques and, of course, new results, which can provide an insight into FSI processes.

vortex-induced vibration --- higher mode --- flexible pipe --- oscillatory flow --- motion trajectory --- lock-in --- dominant frequency --- time-varying --- lifeboat --- freefall --- ship motion --- Kane’s method --- one-way coupling --- CFD-DEM --- ice resistance --- ice crack --- fluid–structure interaction --- flexible beam --- high speed imaging --- system coupling --- coastal structure --- fluid-structure interaction --- engineering design parameters --- environment protection --- intake velocity --- velocity cap --- axial hydraulic force --- stress --- deformation --- pump turbine --- starting-up --- cutting ratio --- codend --- hydrodynamic characteristics --- fluttering motions --- the Fourier series --- marine centrifugal pump --- vibration excitation source --- fluid excitation --- electromagnetic excitation --- numerical simulation --- OpenFOAM --- one-way approach --- structural analysis --- open water test --- computational fluid dynamics --- numerical analysis --- fluid mechanics --- blade design --- propeller --- hydraulic machinery runner --- wet modal analysis --- acoustic–structure coupling --- boundary condition --- marine growth --- hydrodynamic loading --- roughness --- mussels --- morison coefficients --- cavity detachment --- free streamlines --- Brillouin criterion --- n/a --- Kane's method --- acoustic-structure coupling