Ponències/Comunicacions de congressos
Enviaments recents
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Recent developments in the design of a new air-cooled, hot-water-driven H2O-LiBr absorption chiller
(ASHRAE, 2008)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper explains the up-to-date stage of development of an air-cooled H2O-LiBr absorption chiller. The methodology of development is based on the systematic application of advanced numerical and experimental techniques, ... -
Exa, zetta, yotta and beyond: on the evolution of Poisson solvers
(Parallel Computational Fluid Dynamics (ParCFD), 2023)
Text en actes de congrés
Accés restringit per política de l'editorialIn this work, we aim to shed light to the following research question: is the complexity of numerically solving Poisson’s equation increasing or decreasing for very large DNS and LES simulations of incompressible flows? ... -
Low-rank corrections for increasing the arithmetic intensity of the preconditioners
(Parallel Computational Fluid Dynamics (ParCFD), 2023)
Text en actes de congrés
Accés restringit per política de l'editorialSpatial reflection symmetries are common in many academic and industrial CFD configurations. Given a mesh with s symmetries, it is possible to transform Poisson’s equation into a set of 2^s fully-decoupled subsystems. By ... -
Assessment of LES models for a fully developed windturbine array boundary layer
(Begell House, 2023)
Text en actes de congrés
Accés restringit per acord de confidencialitatDirect numerical simulations of the incompressible Navier-Stokes equations at high Reynolds numbers are not yet feasible, so dynamically less complex mathematical formulations such as Large Eddy Simulation (LES) have been ... -
Strategies for increasing the arithmetic intensity on ensemble averaged parallel-in-time simulations
(Parallel Computational Fluid Dynamics (ParCFD), 2023)
Text en actes de congrés
Accés restringit per acord de confidencialitatExtracting flow statistics from flow simulations requires generally long in- tegration intervals in which a good deal of the time is spent time-averaging the results. In order to avoid this, ensemble averaging can be applied ... -
A coupled LSVOF-adaptive mesh refinement-moving mesh technique to study complex multiphase problems
(Begell House, 2023)
Comunicació de congrés
Accés restringit per política de l'editorialThe Piecewise-Linear-Interface-Calculation (PLIC) reconstruction algorithm in the Volume-of-Fluid (VOF) method is widely used in numerical simulations of interfacial flows across various fields. However, a significant ... -
Unstructured Conservative Level-Set (UCLS) method for mass transfer in bubble swarms with high physical properties ratios
(Begell House, 2024)
Text en actes de congrés
Accés restringit per política de l'editorialThis work introduces a parallel Unstructured Conservative Level-Set (UCLS) method for reactive mass transfer in two-phase flows with a high-density ratio. The proposed method employs the multiple-marker approach to circumvent ... -
Combustion and air flows simulations of an industrial kiln for sanitary ware manufacture
(Begell House, 2023)
Comunicació de congrés
Accés restringit per política de l'editorialThe implementation of green hydrogen as fuel in industrial kilns, such as those required in ceramic ware manufacturing processes, would be a disruptive milestone in the decarbonization process of the energyintensive industry. ... -
Reliable overnight industrial LES: challenges and limitations. Application to CSP technologies
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Text en actes de congrés
Accés obertPreserving the operators’ symmetries at the discrete level is crucial to enable reliable DNS and LES simulations of turbulent flows. Moreover, real-world applications demand robust and stable numerical methods suitable for ... -
On the evolution of Poisson solvers for extreme scale simulations
(Begell House, 2023)
Text en actes de congrés
Accés restringit per política de l'editorialIn this work, we aim to shed light to the following research question: is the complexity of numerically solving Poisson’s equation increasing or decreasing for very large DNS and LES simulations of incompressible flows? ... -
On a conservative solution to checkerboarding: examining the causes of non-physical pressure modes
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Text en actes de congrés
Accés obertIn computational fluid dynamics (CFD), the checkerboard problem remains a challenging issue when employing collocated grid arrangements for complex geometries. It manifests as oscillatory and non-physical pressure modes, ... -
On a high-order energy-preserving unconditionally stable discretization on collocated unstructured grids
(European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023)
Text en actes de congrés
Accés obertIn this work, an energy-preserving unconditionally stable fractional step method on collocated unstructured grids is presented. Its formulation is based on preserving the underlying symmetries of the differential operators. ...