Alessandro Mariotti
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View article: Nonlinear calcium King plot constrains new bosons and nuclear properties
Nonlinear calcium King plot constrains new bosons and nuclear properties Open
Nonlinearities in King plots (KP) of isotope shifts (IS) can reveal the\nexistence of beyond-Standard-Model (BSM) interactions that couple electrons and\nneutrons. However, it is crucial to distinguish higher-order Standard Model\n(SM) eff…
View article: Towards the prediction of plaque onset and growth in carotid arteries
Towards the prediction of plaque onset and growth in carotid arteries Open
We describe a computational platform to predict atherosclerotic plaque onset and growth in carotids. It integrates in-vivo data, Computational Fluid Dynamics (CFD) simulations and a model for plaque growth linearly correlating the plaque p…
View article: Multigrid sequential data assimilation for the Large Eddy Simulation of a massively separated bluff-body flow
Multigrid sequential data assimilation for the Large Eddy Simulation of a massively separated bluff-body flow Open
View article: Influence of inflow acceleration on the aerodynamic characteristics of a square cylinder
Influence of inflow acceleration on the aerodynamic characteristics of a square cylinder Open
View article: Experimental investigations on the effect of upstream-edge rounding on the BARC configuration
Experimental investigations on the effect of upstream-edge rounding on the BARC configuration Open
View article: Large-Eddy Simulations with remeshed Vortex methods: An assessment and calibration of subgrid-scale models
Large-Eddy Simulations with remeshed Vortex methods: An assessment and calibration of subgrid-scale models Open
View article: Drag reduction in a spanwise-infinite boat-tailed body through multiple transverse grooves
Drag reduction in a spanwise-infinite boat-tailed body through multiple transverse grooves Open
Appropriately-designed spanwise-extruded small grooves, oriented transverse to the freestream flow, may delay flow separation in adverse pressure gradients by generating local and stable recirculation zones. In this study, we explore the p…
View article: Chemical Reactor Network modeling of ammonia–hydrogen combustion in a gas turbine: stochastic sensitivity analysis
Chemical Reactor Network modeling of ammonia–hydrogen combustion in a gas turbine: stochastic sensitivity analysis Open
View article: Flashback propensity due to hydrogen blending in natural gas: Sensitivity to operating and geometrical parameters
Flashback propensity due to hydrogen blending in natural gas: Sensitivity to operating and geometrical parameters Open
Hydrogen has emerged as a promising option for promoting decarbonization in various sectors by serving as a replacement for natural gas while retaining the combustion-based conversion system. However, its higher reactivity compared to natu…
View article: Effect of the Carotid Geometry on the Onset of Atherosclerotic Plaques
Effect of the Carotid Geometry on the Onset of Atherosclerotic Plaques Open
View article: Flashback propensity due to hydrogen blending in natural gas: sensitivity to operating and geometrical parameters
Flashback propensity due to hydrogen blending in natural gas: sensitivity to operating and geometrical parameters Open
Hydrogen has emerged as a promising option for promoting decarbonization in various sectors by serving as a replacement for natural gas while retaining the combustion-based conversion system. However, its higher reactivity compared to natu…
View article: Numerical simulation of aortic coarctations of different grades of severity: Flow features and importance of outlet boundary conditions
Numerical simulation of aortic coarctations of different grades of severity: Flow features and importance of outlet boundary conditions Open
Numerical simulations of the blood flow inside a patient-specific thoracic aorta in presence of coarctation are considered. Different grades of severity of the coarctation are obtained by constructing parametric geometries in which the coa…
View article: In Vitro Analysis of Hemodynamics in the Ascending Thoracic Aorta: Sensitivity to the Experimental Setup
In Vitro Analysis of Hemodynamics in the Ascending Thoracic Aorta: Sensitivity to the Experimental Setup Open
We perform a stochastic sensitivity analysis of the experimental setup of a mock circulatory loop for in vitro hemodynamics analysis in the ascending thoracic aorta at a patient-specific level. The novelty of the work is that, for the firs…
View article: Reaction performance in T-, X- and arrow-shaped microdevices
Reaction performance in T-, X- and arrow-shaped microdevices Open
Microreactors are widely used for continuous flow operations. The assessment of their performance has a crucial role in determining the optimal geometries and working con-ditions. Among the most common geometries, we compare T-, X-and arro…
View article: Multigrid sequential data assimilation for the large-eddy simulation of a massively separated bluff-body flow
Multigrid sequential data assimilation for the large-eddy simulation of a massively separated bluff-body flow Open
The potential for data-driven applications to scale-resolving simulations of turbulent flows is assessed herein. Multigrid sequential data assimilation algorithms have been used to calibrate solvers for Large Eddy Simulation for the analys…
View article: Optimization of gas detectors placement in complex industrial layouts based on CFD simulations
Optimization of gas detectors placement in complex industrial layouts based on CFD simulations Open
The optimal placement of hazardous gas detectors plays a relevant role in the prevention and mitigation of critical scenarios among chemical and process facilities. However, the operative performance of gas sensors networks is affected by …
View article: Spanwise-Discontinuous Grooves for Separation Delay and Drag Reduction of Bodies with Vortex Shedding
Spanwise-Discontinuous Grooves for Separation Delay and Drag Reduction of Bodies with Vortex Shedding Open
Suitably shaped grooves, placed transverse to the flow, can delay flow separation over curved surfaces. When grooves are fully extruded in the spanwise direction, they may reduce the drag of boat-tailed bodies with vortex shedding, but wit…
View article: Mixing Improvement in a T-Shaped Micro-Junction through Small Rectangular Cavities
Mixing Improvement in a T-Shaped Micro-Junction through Small Rectangular Cavities Open
The T-shaped micro-junction is among the most used geometry in microfluidic applications, and many design modifications of the channel walls have been proposed to enhance mixing. In this work, we investigate through numerical simulations t…
View article: Effects of flow unsteadiness and chemical kinetics on the reaction yield in a T-microreactor
Effects of flow unsteadiness and chemical kinetics on the reaction yield in a T-microreactor Open
View article: Investigation on steady regimes in a X-shaped micromixer fed with water and ethanol
Investigation on steady regimes in a X-shaped micromixer fed with water and ethanol Open
View article: Mixing sensitivity to the inclination of the lateral walls in a T-mixer
Mixing sensitivity to the inclination of the lateral walls in a T-mixer Open
View article: Effects of Uncertainty of Outlet Boundary Conditions in a Patient-Specific Case of Aortic Coarctation
Effects of Uncertainty of Outlet Boundary Conditions in a Patient-Specific Case of Aortic Coarctation Open
View article: A Study on the Effect of Flow Unsteadiness on the Yield of a Chemical Reaction in a T Micro-Reactor
A Study on the Effect of Flow Unsteadiness on the Yield of a Chemical Reaction in a T Micro-Reactor Open
Despite the very simple geometry and the laminar flow, T-shaped microreactors have been found to be characterized by different and complex steady and unsteady flow regimes, depending on the Reynolds number. In particular, flow unsteadiness…
View article: Effect of stratification on the mixing and reaction yield in a T-shaped micro-mixer
Effect of stratification on the mixing and reaction yield in a T-shaped micro-mixer Open
The effect of a small density difference, i.e., lower than 12%, between the two miscible liquid streams fed to a T-shaped junction is investigated experimentally and through numerical simulations. Micron-resolution particle image velocimet…
View article: Unsteady flow regimes in arrow-shaped micro-mixers with different tilting angles
Unsteady flow regimes in arrow-shaped micro-mixers with different tilting angles Open
Two arrow-shaped micro-mixers, obtained from the classical T-shaped geometry by tilting downward the inlet channels, are considered herein. The two configurations, having different tilting angle values, have been chosen since they show sig…
View article: Flow around a 5:1 rectangular cylinder: Effects of upstream-edge rounding
Flow around a 5:1 rectangular cylinder: Effects of upstream-edge rounding Open
View article: Numerical investigation of skewed spatially evolving mixing layers
Numerical investigation of skewed spatially evolving mixing layers Open
The sensitivity of turbulent dynamics in spatially evolving mixing layers to small skew angles is investigated via direct numerical simulation. Angle is a measure of the lack of parallelism between the two asymptotic flows, whose interacti…
View article: The role of flow features and chemical kinetics on the reaction yield in a T-shaped micro-reactor
The role of flow features and chemical kinetics on the reaction yield in a T-shaped micro-reactor Open
View article: Flow characterization of a pulsating heat pipe through the wavelet analysis of pressure signals
Flow characterization of a pulsating heat pipe through the wavelet analysis of pressure signals Open
View article: An Overview of Flow Features and Mixing in Micro T and Arrow Mixers
An Overview of Flow Features and Mixing in Micro T and Arrow Mixers Open
An overview of the mixing performances of micro T mixers operating with a single fluid is presented. The focus is on the relationship between the flow features and mixing. Indeed, T mixers are characterized by a variety of regimes for incr…