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Recent Submissions
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An assessment of Navier-Stokes characteristic boundary conditions for real fluids in a non-dissipative numerical framework
(2024)
Conference report
Open AccessThe abrupt variations in thermophysical properties pose significant challenges for the numerical simulation of real-fluid flows. This study evaluates Navier-Stokes characteristic boundary conditions (NSCBC) for non-ideal ... -
Buoyant high-pressure transcritical fluid duct flows
(International Centre for Numerical Methods in Engineering (CIMNE), 2024)
Conference report
Open AccessIn this work, direct numerical simulations of a high-pressure transcritical square duct flow with distinct gravity directions in the cross-stream plane are performed. The buoyancy effects on the instantaneous and mean ... -
Spatio-temporal analysis of the structures in high-pressure transcritical fluid flows
(International Centre for Numerical Methods in Engineering (CIMNE), 2024)
Conference report
Open AccessThis study explores the principal modes of high-pressure transcritical channel f low from direct numerical simulation data. The four cases investigated correspond to CO2 at high-pressure conditions (P/Pc = 1.5) confined ... -
Data-driven acceleration of statistical convergence in turbulent flows
(European Community on Computational Methods in Applied Sciences (ECCOMAS), 2024)
Conference report
Open AccessDirect numerical simulations (DNS) provide accurate and reliable information for the physics discovery and modeling of turbulent flow phenomena, especially about their inherent multiscale nature in terms of kinematic and ... -
Linear stability exploration of transcritical non-isothermal Poiseuille flows
(European Community on Computational Methods in Applied Sciences (ECCOMAS), 2024)
Conference report
Open AccessHigh-pressure transcritical turbulent flow regimes enhance the mixing and heat transfer rates with respect to atmospheric pressure conditions. The two characteristic states of supercritical fluids, gas- and liquid-like, ... -
Fast urban flow predictions through Convolutional Neural Networks
(2023)
Conference report
Open AccessHaving real-time and accurate numerical predictions of urban wind flow can be extremely useful for developing tools intended to improve citizens’ life quality and health. However, traditional methods such as Computational ... -
Exploring the artificial compressibility method in high-pressure transcritical fluids
(International Centre for Numerical Methods in Engineering (CIMNE), 2023)
Conference report
Open AccessThis work presents the investigation of a solution to accelerate computations of high-pressure transcritical fluids at low-Mach number regimes based on the artificial compressibility method. The highly adaptable nature of ... -
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 ... -
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 -
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 ...
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