CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica
La recerca del CDIF està relacionada amb el comportament dinàmic d'estructures confinades excitades per fluids. La recerca del comportament dinàmic requereix del estudi de les excitacions generades per un fluid i la resposta estructural per determinar els comportaments vibratoris i les deformacions. L'aplicació principal està en les turbomàquines hidràuliques (sector energies renovables).
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Articles de revista [35]
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Dynamic model for axial motion of horizontal pelton turbine and validation in actual failure case
(2020-01-01)
Article
Open AccessPelton turbines are important machines for power generation from a renewable energy source such as water. For power rates below 20 MW, the rotor of Pelton turbines is usually in horizontal position. Considering ideal ... -
Análisis de las vibraciones y fluctuaciones de presión en una bomba turbina
(1992-03)
Article
Restricted access - publisher's policyEn este artículo se describe el análisis de las mediciones de presión no estacionaria y vibraciones en una bomba-turbina a fin de identificar el origen de las vibraciones en una estructura próxima a la central. Una excitación ... -
Improvement of cavitation mass transfer modeling by including Rayleigh–Plesset equation second order term
(2020-06-03)
Article
Restricted access - publisher's policyThe current study evaluates the effect of taking into account the second order term of the Rayleigh– Plesset equation for the numerical simulation of cavitation with homogeneous mixture models. For that, the corrected ... -
Dynamic response of Pelton runners: Numerical and experimental analysis in prototypes
(Elsevier, 2020-09-01)
Article
Restricted access - publisher's policyWorldwide electricity generation is featured by the growth of intermittent renewable energies. In this context, hydropower plays a fundamental role because it provides flexibility to the power grid and ensures its stability. ... -
Numerical simulation of cavitation erosion aggressiveness induced by unsteady cloud cavitation
(Multidisciplinary Digital Publishing Institute, 2020-08-01)
Article
Open AccessA numerical investigation of the erosion aggressiveness of leading edge unsteady cloud cavitation based on the energy balance approach has been carried out to ascertain the main damaging mechanisms and the influence of the ... -
Transposition of the mechanical behavior from model to prototype of Francis turbines
(Elsevier, 2020-06-01)
Article
Restricted access - publisher's policyHydropower is nowadays essential for balancing the electrical grid providing flexibility and fast response. The role of hydraulic turbines has changed from working at their Best Efficiency Point (BEP) to work in the whole ... -
Presa de Caruachi. Estudio del comportmiento hidráulico de las compuertas de los conductos de desvío
(2002-07)
Article
Open AccessSe presenta el estudio desarrollado en el Laboratorio de Modelos Reducidos del Dpto. de Ing. Hidráulica, Marítima y Ambiental de la UPC, para el análisis del comportamiento hidráulico de las compuertas a utilizar en la ... -
Experimental investigation on synthesis, characterization, stability, thermo-physical properties and rheological behavior of MWCNTs-kapok seed oil based nanofluid
(2019-03-01)
Article
Open AccessSeveral researchers devoted their efforts for the thermal conductivity enhancement of Carbon Nanotubes (CNTs) based nanofluids as CNTs have excellent thermal properties. However, limited research is reported on the detailed ... -
Assessment of RANS turbulence models and Zwart cavitation model empirical coefficients for the simulation of unsteady cloud cavitation
(Engineering Applications of Computational Fluid Mechanics, 2019-11-26)
Article
Open AccessThe numerical simulation of unsteady cavitation flows is sensitive to the selected models and associated parameters. Consequently, three Reynolds Average Navier-Stokes (RANS) turbulence models and the Zwart cavitation model ... -
Synchronous condenser operation in Francis turbines: Effects in the runner stress and machine vibration
(Elsevier, 2020-02-01)
Article
Restricted access - publisher's policyReactive power shortage is one of the current issues that endanger the stability of the power grid systems. Some massive blackouts have been experienced in the past years due to the unbalance of reactive power. One of the ... -
Experimental measurements of the natural frequencies and mode shapes of rotating disk-blades-disk assemblies from the stationary frame
(Multidisciplinary Digital Publishing Institute, 2019-09-14)
Article
Open AccessDetermining the natural frequencies and mode shapes of rotating turbomachinery components from both rotating and stationary reference frames is of paramount importance to avoid resonance problems that could affect the ... -
Detection of hydraulic phenomena in francis turbines with different sensors
(Multidisciplinary Digital Publishing Institute (MDPI), 2019-09-19)
Article
Open AccessNowadays, hydropower is demanded to provide flexibility and fast response into the electrical grid in order to compensate the non-constant electricity generation of other renewable sources. Hydraulic turbines are therefore ...
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