Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Carbone Maurizio"'
Complex network analysis methods have been widely applied to nonlinear systems, but applications within fluid mechanics are relatively few. In this paper, we use a network for the Lagrangian dynamics of the velocity gradient tensor (VGT), where each
Externí odkaz:
http://arxiv.org/abs/2405.03589
Understanding the dynamics of the turbulent velocity gradient tensor (VGT) is essential to gain insights into the Navier-Stokes equations and improve small-scale turbulence modeling. However, characterizing the VGT dynamics conditional on all its rel
Externí odkaz:
http://arxiv.org/abs/2404.05453
Small-scale turbulence can be comprehensively described in terms of velocity gradients, which makes them an appealing starting point for low-dimensional modeling. Typical models consist of stochastic equations based on closures for non-local pressure
Externí odkaz:
http://arxiv.org/abs/2402.19158
Autor:
Luu, Tien Duc, Shamooni, Ali, Kronenburg, Andreas, Braig, Daniel, Mich, Johannes, Nguyen, Bich-Diep, Scholtissek, Arne, Hasse, Christian, Thäter, Gabriel, Carbone, Maurizio, Frohnapfel, Bettina, Stein, Oliver Thomas
Three-dimensional CP-DNS of reacting iron particle dust clouds in a turbulent mixing layer are conducted. The simulation approach considers the Eulerian transport equations for the reacting gas phase and resolves all scales of turbulence, whereas the
Externí odkaz:
http://arxiv.org/abs/2401.16944
Publikováno v:
J. Fluid Mech. 987 (2024) A17
Tom et al.\ (J.\ Fluid Mech.\ 947, A7, 2022) investigated the impact of two-way coupling (2WC) on particle settling in turbulence. For the limited parameter choices explored, it was found that 2WC substantially enhances particle settling compared to
Externí odkaz:
http://arxiv.org/abs/2309.07762
Autor:
Carbone, Maurizio, Wilczek, Michael
Stirring a fluid through a Gaussian forcing at a vanishingly small Reynolds number produces a Gaussian random field, while flows at higher Reynolds numbers exhibit non-Gaussianity, cascades, anomalous scaling and preferential alignments. Recent works
Externí odkaz:
http://arxiv.org/abs/2305.03454
The equation for the fluid velocity gradient along a Lagrangian trajectory immediately follows from the Navier-Stokes equation. However, such an equation involves two terms that cannot be determined from the velocity gradient along the chosen Lagrang
Externí odkaz:
http://arxiv.org/abs/2210.17336
For one-way coupled (1WC) flows, Tom & Bragg (J. Fluid Mech., 871, pp. 244-270, 2019) advanced the analysis of Maxey (J. Fluid Mech., 174, pp. 441-465, 1987), which applied to weakly inertial particles, to particles of arbitrary inertia, and the new
Externí odkaz:
http://arxiv.org/abs/2202.01049
Autor:
Carbone, Maurizio, Wilczek, Michael
Incompressible and statistically homogeneous flows obey exact kinematic relations. The Betchov homogeneity constraints (Betchov, J. Fluid Mech., vol. 1, 1956, pp. 497-504) for the average principal invariants of the velocity gradient are among the mo
Externí odkaz:
http://arxiv.org/abs/2112.12820