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Bubble nucleation and growth in slow cosmological phase transitions
(Elsevier Science, 2018-03)
We study the dynamics of cosmological phase transitions in the case of small velocities of bubble walls, vw<0.1. We discuss the conditions in which this scenario arises in a physical model, and we compute the development ...
Estimation of the radial distribution of axial velocities in fixed beds of spherical packing
(Institution of Chemical Engineers, 2019-07-24)
The vessel wall of densely packed beds exert a strong influence on particle distribution that generates a radial porosity profile and, in turn, a radial profile of axial velocity. A direct consequence is the appearance of ...
Direct Measurements of the Malvinas Current Velocity Structure
(Blackwell Publishing, 2021-03)
Direct velocity measurements of the Malvinas Current (MC) were carried out on multiple occupations of five transects across the flow using a Shipborne Acoustic Current Profiler (SADCP) on the R/V Akademik Sergey Vavilov ...
Rectification of Image Velocity Results (RIVeR): A simple and user-friendly toolbox for large scale water surface Particle Image Velocimetry (PIV) and Particle Tracking Velocimetry (PTV)
(Pergamon-Elsevier Science Ltd, 2017-12)
LSPIV (Large Scale Particle Image Velocimetry) and LSPTV (Large Scale Particle Tracking Velocimetry) are used as relatively low-cost and non-intrusive techniques for water-surface velocity analysis and flow discharge ...
Infall of galaxies onto groups
(EDP Sciences, 2020-10)
The growth of the structure within the Universe manifests in the form of accretion flows of galaxies onto groups and clusters. Thus, the present-day properties of groups and their member galaxies are influenced by the ...
Automatic correction of background phase offset in 4D-flow of great vessels and of the heart in MRI using a third-order surface model
(Springer, 2019-12)
Objective: To evaluate an automatic correction method for velocity offset errors in cardiac 4D-flow acquisitions. Materials and methods: Velocity offset correction was done in a plane-by-plane scheme and compared to a ...
Impact on porous targets: Penetration, crater formation, target compaction, and ejection
(American Physical Society, 2012-12)
Using a granular-mechanics code, we study the impact of a sphere into a porous adhesive granular target, consisting of monodisperse silica grains. The model includes elastic repulsive, adhesive, and dissipative forces, as ...