Search Results - "Sigalotti, L. Di G."
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Flow Modeling of a Non-Newtonian Viscous Fluid in Elastic-Wall Microchannels
Published in Fluids (Basel) (01-03-2024)“…The use of polymer microspheres is becoming increasingly widespread. Along with their most common applications, they are beginning to be used in the synthesis…”
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The impact of the initial core temperature on protostellar disc fragmentation
Published in Monthly notices of the Royal Astronomical Society (01-02-2023)“…ABSTRACT Ground-based and satellite observations have revealed dust temperatures as low as ∼5−7 K in the centre of low-mass, pre-stellar cloud cores, where…”
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impetus: consistent SPH calculations of 3D spherical Bondi accretion on to a black hole
Published in Monthly notices of the Royal Astronomical Society (11-07-2018)“…Abstract We present three-dimensional calculations of spherically symmetric Bondi accretion on to a stationary supermassive black hole of mass 108 M⊙ within a…”
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4
Dissipation of Standing Slow Magnetoacoustic Waves in Hot Coronal Loops
Published in Solar physics (01-11-2007)“…Issue Title: MHD Waves and Oscillations in Solar Magnetic Structures / Guest Editor: R. Erdélyi The damping of standing slow waves in hot (T>6 MK) coronal…”
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Relativistic dynamics of the deuteron: An estimate of the nuclear force parameters
Published in American journal of physics (01-12-2007)“…A relativistic dynamical model of the deuteron nucleus is presented. The neutron and proton are assumed to interact via a short-range Yukawa interaction of…”
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6
Propagation and Damping of a Localized Impulsive Longitudinal Perturbation in Coronal Loops
Published in Solar physics (2009)“…We use linear analysis to simulate the evolution of a coronal loop in response to a localized impulsive event. The disturbance is modeled by injecting a narrow…”
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7
SPH simulations of turbulent flow in curved pipes with different geometries. A comparison with experiments
Published 29-07-2021“…J. Fluids Eng, Volume 143, Issue 9 September 2021 The swirling secondary flow in curved pipes is studied in three-space dimensions using a weakly compressible…”
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Creating and using large grids of precalculated model atmospheres for a rapid analysis of stellar spectra
Published 23-09-2020“…$Aims.$ We present a database of 43,340 atmospheric models ($\sim$80,000 models at the conclusion of the project) for stars with stellar masses between 9 and…”
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Radiative non-isothermal Bondi accretion onto a massive black hole
Published 11-09-2019“…A&A 631, A13 (2019) In this paper, we present the classical Bondi accretion theory for the case of non-isothermal accretion processes onto a supermassive black…”
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10
Autonomous choices among deterministic evolution-laws as source of uncertainty
Published 06-09-2017“…Communications in Nonlinear Science and Numerical Simulation 56C (2018) pp. 405-418 We provide evidence of an extreme form of sensitivity to initial conditions…”
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Impetus: Consistent SPH calculations of 3D spherical Bondi accretion onto a black hole
Published 30-03-2018“…We present three-dimensional calculations of spherically symmetric Bondi accretion onto a stationary supermassive black hole (SMBH) of mass $10^{8}$…”
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12
Numerical Study of the Mixing Process of Unconfined Diffusion Flame in a Laminar to Transition-to-Turbulent Regime in a Four-Port Array Burner
Published 31-08-2020“…The mixing process of multiple jets of liquefied petroleum gas and air in a diffusion flame is numerically analysed. The case study considers a four-port array…”
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13
Image Convolution-Based Method and Statistical Modelling for Experimental Height Estimations of Laminar to Transition-to-Turbulent Regime Diffusion Flames
Published 31-08-2020“…This paper presents an experimental methodology to measure the height of the flame using convolution image processing and statistical analysis. The…”
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14
Luminous Flame Height Correlation Based on Fuel Mass Flow for a Laminar to Transition-to-Turbulent Regime Diffusion Flame
Published 27-08-2020“…This paper presents a flame-height correlation for laminar to transition-to-turbulent regime diffusion flames. Flame-height measurements are obtained by means…”
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15
Modelling free surface flows with smoothed particle hydrodynamics
Published in Condensed matter physics (01-01-2006)“…In this paper the method of Smoothed Particle Hydrodynamics (SPH) is extended to include an adaptive density kernel estimation (ADKE) procedure. It is shown…”
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SPH modeling of natural convection around a heated horizontal cylinder: A comparison with experiments
Published 10-12-2020“…An experimental and numerical smoothed particle hydrodynamics (SPH) analysis was performed for the convective flow arising from a horizontal, thin cylindrical…”
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17
Gravitational collapse of gas clouds with spherical, cylindrical or plane symmetry in the linear wave flow approximation
Published in Astrophysics and space science (01-09-1983)“…The equations of gas dynamics are solved, quasi-analytically by applying McVittie's method for spherical, cylindrical and plane configurations. The hypothesis…”
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Multiple fragmentation models of centrally condensed molecular cloud cores
Published in Monthly notices of the Royal Astronomical Society (15-07-1996)“…The protostellar collapse of centrally condensed, rapidly rotating (β≈0.17) cores, along with implicitly assumed m = 2 density variations — as appropriate for…”
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Gravitational collapse of rotating protostellar gas clouds not constrained by the condition of equatorial symmetry
Published in Monthly notices of the Royal Astronomical Society (15-09-1990)Get full text
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Numerical models of tidally interacting protostellar binary systems
Published in Monthly notices of the Royal Astronomical Society (01-01-1992)“…The tidally induced deformation of a rotating, collapsing adiabatic ( γ = 7/5) protostar, due to a similar companion of comparable mass moving past in an…”
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