Torsional vibration of size-dependent viscoelastic rods using nonlocal strain and velocity gradient theory
Sign Up to like & getrecommendations! Published in 2018 at "Composite Structures"
DOI: 10.1016/j.compstruct.2017.12.002
Abstract: Abstract In this paper the torsional vibration of size-dependent viscoelastic nanorods embedded in an elastic medium with different boundary conditions is investigated. The novelty of this study consists of combining the nonlocal theory with the… read more here.
Keywords: size dependent; theory; vibration; nonlocal strain ... See more keywords
2-D inversion of P-wave polarization data to obtain maps of velocity gradient
Sign Up to like & getrecommendations! Published in 2017 at "Physics of the Earth and Planetary Interiors"
DOI: 10.1016/j.pepi.2017.09.005
Abstract: Abstract Gradient mapping is a technique employed in the interpretation of tomographic velocity images for delineating geological structures. In this paper, a tomographic method is proposed for determining relative velocity gradient field from seismic polarization… read more here.
Keywords: polarization; method; relative velocity; velocity gradient ... See more keywords
Velocity gradient partitioning in turbulent flows
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2024.1021
Abstract: Abstract The velocity gradient tensor can be decomposed into normal straining, pure shearing and rigid rotation tensors, each with distinct symmetry and normality properties. We partition the strength of turbulent velocity gradients based on the… read more here.
Keywords: velocity gradient; gradient partitioning; partitioning turbulent; turbulence ... See more keywords
Caustics of inertial particles observed along Lagrangian particle trajectories
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.10206
Abstract: Abstract We extend the perceived velocity gradient defined by a group of particles that was previously used to investigate the Lagrangian statistics of fluid turbulence to the study of inertial particle dynamics. Using data from… read more here.
Keywords: inertial particles; velocity gradient; time; particle ... See more keywords
Invariants of velocity gradient tensor in supersonic turbulent pipe, nozzle, and diffuser flows
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Fluids"
DOI: 10.1063/1.5004468
Abstract: Velocity gradient tensor (VGT) analysis of high-order accurate direct numerical simulation data of supersonic pipe, nozzle, and diffuser flows at computationally moderate Reynolds numbers is performed. Joint probability density functions of second and third invariants… read more here.
Keywords: diffuser flows; nozzle diffuser; velocity gradient; pipe nozzle ... See more keywords
An objective version of the Rortex vector for vortex identification
Sign Up to like & getrecommendations! Published in 2019 at "Physics of Fluids"
DOI: 10.1063/1.5095624
Abstract: Vortices are a ubiquitous natural phenomenon, and their structure, shape, and characteristics should be independent of the observer, which implies that the vortex identification method or vortex definition should maintain its objectivity. Currently, most of… read more here.
Keywords: velocity gradient; definition; vortex identification; gradient tensor ... See more keywords
Polygon model for solution of non-linear velocity gradient of interface and asymmetric break-up of droplet
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Fluids"
DOI: 10.1063/5.0178445
Abstract: In this study, a novel model is proposed to accurately depict the changes in the droplet-matrix interface as a function of the velocity gradient at different times. Using the iteration method and drawing the droplet… read more here.
Keywords: droplet; interface; model; velocity gradient ... See more keywords
English translation of Giesekus's famous article on flows with constant velocity gradient and the motion of particles suspended therein. Part I. Spatial flows
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Fluids"
DOI: 10.1063/5.0194331
Abstract: Within the framework of a statistical rheology of suspensions, emulsions, and solutions, it is important to obtain an overview of the total set of flows with a constant velocity gradient. Therefore, the solutions of the… read more here.
Keywords: motion; flows constant; constant velocity; velocity gradient ... See more keywords
Invariants of velocity gradient tensor in three-dimensional relativistic astrophysical jet/spherical dense cloud interaction
Sign Up to like & getrecommendations! Published in 2025 at "Physics of Fluids"
DOI: 10.1063/5.0271785
Abstract: In this Letter, the numerical simulation of three-dimensional hydrodynamic relativistic jet/spherical dense cloud interaction has been performed by solving relativistic hydrodynamic equations in the computer code PLUTO [Mignone et al., “PLUTO: A numerical code for… read more here.
Keywords: velocity gradient; gradient tensor; jet;
Parallel and perpendicular alignments of velocity gradient and magnetic field observed in the molecular clouds L1478 and L1482
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1513
Abstract: Star formation is a complex process that typically occurs in dense regions of molecular clouds mainly regulated by magnetic fields, magnetohydrodynamic (MHD) turbulence, and self-gravity. However, it remains a challenging endeavor to trace the magnetic… read more here.
Keywords: self gravity; l1478 l1482; molecular clouds; velocity gradient ... See more keywords
Tentative rotation in a galaxy at z∼14 with ALMA
Sign Up to like & getrecommendations! Published in 2025 at "Monthly Notices of the Royal Astronomical Society: Letters"
DOI: 10.1093/mnrasl/slaf109
Abstract: We re-analysed ALMA observations of the [O iii] λ88μm emission line in JADES-GS-z14-0, so one of the most distant spectroscopically confirmed galaxy at z=14.18. Our analysis shows a tentative detection of a velocity gradient of [O iii] λ88μm using… read more here.
Keywords: velocity gradient; galaxy; velocity; dynamical mass ... See more keywords