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Study of colliding particle-pair velocity correlation in homogeneous isotropic turbulence
(MDPI, 2020-12-19)
This paper deals with the numerical analysis of the particle inertia and volume fraction
effects on colliding particle-pair velocity correlation immersed in an unsteady isotropic homogeneous turbulent flow. Such correlation ...
Computational study of transient flow around Darrieus type cross flow water turbines
(American Institute of Physics Inc., 2016-01-13)
This study presents full transient numerical simulations of a cross-flow vertical-axis marine current turbine (straight-bladed Darrieus type) with particular emphasis on the analysis of hydrodynamic characteristics. Turbine ...
Interaction of particles with a cavitation bubble near a solid wall
(AIP Publishing, 2018)
Hard particle erosion and cavitation damage are two main wear problems that can affect the internal components of hydraulic machinery such as hydraulic turbines or pumps. If both problems synergistically act together, the ...
Surface damage caused by the interaction of particles and a spark-generated bubble near a solid wall
(Elsevier, 2019-11-15)
Machine components operating in a fluid under conditions of cavitation and hard particle erosion can be severely affected by wear, which may reduce the lifespans of the components. To understand this synergic behaviour, ...
Influence of droplet collision modelling in Euler/Lagrange calculations of spray evolution
(ResearchGate, 2020-07)
The numerical computation of spraying systems is favourably conducted by applying the Euler/Lagrange approach. Although sprays downstream of the breakup region are very often rather dilute, droplet collisions may still ...
Simulating and designing small hydrokinetic turbines: A review
(International Review of Electrical Engineering (IREE), 2018)
The increased use of renewable energy resources for rural electrification has encouraged research and experimental projects decreasing designs uncertainties. This paper presents a deep and critical review of the design of ...
Simulation of unsteady blood flow dynamics in the thoracic aorta
(Universidad Nacional de Colombia. Facultad de Ingeniería, 2017)
En este trabajo se analiza la dinámica del flujo sanguíneo en un modelo realista de la aorta torácica (TA, por sus siglas en inglés) en condiciones transitorias visualizando las distribuciones de velocidad, flujo secundario, ...
Hydraulic and rotor-dynamic interaction for performance evaluation on a francis turbine
(Springer Verlag France, 2017-08)
This paper proposes a new methodology to evaluate the technical state of a Francis turbine installed in a hydroelectric plant by coupling computational fluid dynamics (CFD) and rotor-dynamic analysis. CFD simulations ...
RANS and hybrid RANS-LES simulations of an H-Type darrieus vertical axis water turbine
(MDPI, 2018-09-06)
Nowadays, the global energy crisis has encouraged the use of alternative sources like the energy available in the water currents of seas and rivers. The vertical axis water turbine (VAWT) is an interesting option to harness ...
Computational fluid dynamics modelling and simulation of an inclined horizontal axis hydrokinetic turbine
(MDPI, 2018-11-14)
In this contribution, unsteady three-dimensional numerical simulations of the water flow through a horizontal axis hydrokinetic turbine (HAHT) of the Garman type are performed. This study was conducted in order to estimate ...