Departament de Mecànica de Fluids
Collections in this community
-
Altres [10]
-
Articles de revista [417]
-
Capítols de llibre [13]
-
Dataset [1]
-
Lecture notes [1]
-
Llibres [5]
-
Reports de recerca [125]
-
Ressenyes [1]
Recent Submissions
-
Performance and error analysis of structure-preserving time-integration procedures for incompressible-flow simulations
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Conference report
Open AccessThe effects of kinetic-energy preservation errors due to Runge-Kutta (RK) temporal integrators have been analyzed for the case of large-eddy simulations of incompressible turbulent channel flow. Simulations have been run ... -
A massively parallel implementation of multilevel Monte Carlo for finite element models
(2023-11-01)
Article
Open AccessThe Multilevel Monte Carlo (MLMC) method has proven to be an effective variance-reduction statistical method for Uncertainty Quantification (UQ) in Partial Differential Equation (PDE) models, combining model computations ... -
Cost vs. accuracy: second-order vs. high-order methods for eddy-resolving simulations of turbulent separated flows
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Conference report
Open AccessWe report a comparative study of three numerical solvers for the direct numerical simulation of the flow over a sphere at Re = 3700. A high-order spectral-element code (Nek5000), a general purpose, unstructured finite-volume ... -
Fluid dynamics of right ventricular filling in the presence of pulmonary regurgitation: assessment using DNS and 4D Flow MRI
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Conference report
Open Access -
Hybridization of a RoR HPP with a BESS—The XFLEX HYDRO Vogelgrun Demonstrator
(2023-07-01)
Article
Open AccessIn the XFLEX HYDRO Vogelgrun demonstrator, a run-of-river hydropower plant, the hybridization of one turbine-generator unit with a battery energy storage system is being investigated. This paper describes the integration ... -
Non-dissipative large-eddy simulation of high-pressure transcritical turbulent flows: formulation and a priori analysis
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Conference report
Open AccessThis work presents a filtered set of equations suitable for the large-eddy simulation of high-pressure transcritical turbulent flows. The formulation is derived from a novel kinetic-energy- and pressureequilibrium- preserving ... -
Machine learning-based recovery of thermophysical information from velocity data in supercritical fluids turbulence
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Conference report
Open AccessRecent research has shown the possibility to achieve microconfined turbulence utilizing supercritical fluids under high-pressure transcritical conditions. This has generated increasing interest in the hybrid nature of the ... -
Visualization research of energy dissipation in a pump turbine unit during turbine mode's starting up
(Elsevier, 2023-11-01)
Article
Restricted access - confidentiality agreementIdentifying the precise location of flow energy dissipation (FED) in pump turbines is crucial for enhancing the stability of pumped storage power stations. In this study, the transient process of the turbine mode's starting ... -
On the added modal coefficients of a rotating submerged cylinder induced by a whirling motion. Part 2: Numerical investigation
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-09-19)
Article
Open AccessPart 2 of this work presents a numerical methodology, validated using the experimental results presented in Part 1, to calculate the added modal coefficients of a submerged cylinder in water both when it oscillates and ... -
Water saving options in hydropower by means of variable speed operation: a prototype study in a mid-head Francis turbine
(Elsevier, 2023-06-22)
Article
Open AccessNowadays, in order to mitigate the global warming effects, there is a need of renewable energy generation for the objective of carbon neutrality. In this context, hydropower plays a key role not only because the amount of ... -
CFD studies and experimental validation of the convective heat transfer coefficient in non-fully developed flows applied to conventional geometries used in particle accelerators
(Joint Accelerator Conferences Website (JACoW), 2023)
Conference report
Open AccessIn the field of Particle Accelerators engineering, the design of the cooling channels of its components has been extensively based on experimental correlations for the calculation of convective heat transfer coefficients. ... -
Fatigue damage analysis of a Kaplan turbine model operating at off-design and transient conditions
(2023-09-07)
Article
Open AccessThe current renewable energy market forces hydraulic turbines to operate for longer periods of time at off-design and transient conditions. Their life expectancy is then decreased due to the wear provoked by flow instabilities ...
RSS 1.0