Zobrazeno 1 - 10
of 6 175
pro vyhledávání: '"Inertial-particles"'
Stabilization of the Rayleigh-B\'enard system by injection of thermal inertial particles and bubbles
The effects of a dispersed particulate phase on the onset of Rayleigh-B\'enard convection in a fluid layer is studied theoretically by means of a two-fluid Eulerian modelization. The particles are non-Brownian, spherical, with inertia and heat capaci
Externí odkaz:
http://arxiv.org/abs/2411.07891
Autor:
Beron-Vera, F. J.
The purpose of this note is to present an enhancement to a Maxey-Riley theory proposed in recent years for the dynamics of inertial particles on the ocean surface. This model upgrade removes constraints on the reserve buoyancy, defined as the fractio
Externí odkaz:
http://arxiv.org/abs/2407.03564
The progress of miniaturized technology allows controlling physical systems at nanoscale with remarkable precision in regimes where thermal fluctuations are non-negligible. Experimental advancements have sparked interest in control problems in stocha
Externí odkaz:
http://arxiv.org/abs/2407.15678
Small heavy particles cannot get attracted into a region of closed streamlines in a non-accelerating frame (Sapsis & Haller 2010). In a rotating system, however, particles can get trapped (Angilella 2010) near vortices. We perform numerical simulatio
Externí odkaz:
http://arxiv.org/abs/2405.04949
Autor:
Patel, Meet, Rubio, Juan Sebastian, Shekhtman, David, Parziale, Nick, Rabinovitch, Jason, Ni, Rui, Capecelatro, Jesse
Publikováno v:
J. Fluid Mech. 1000 (2024) A60
Experiments and numerical simulations of inertial particles in underexpanded jets are performed. The structure of the jet is controlled by varying the nozzle pressure ratio, while the influence of particles on emerging shocks and rarefaction patterns
Externí odkaz:
http://arxiv.org/abs/2404.07329
Publikováno v:
J. Fluid Mech. 988 (2024) A47
In particle-laden turbulent wall flows, lift forces can influence the near-wall turbulence. This has been recently observed in particle-resolved simulations, which, however, are too expensive to be used in upscaled models. Instead, point-particle sim
Externí odkaz:
http://arxiv.org/abs/2404.05346
Autor:
Bec, Jérémie, Vallée, Robin
Heavy particles suspended in turbulent flow possess inertia and are ejected from violent vortical structures by centrifugal forces. Once piled up along particle paths, this small-scale mechanism leads to an effective large-scale drift. This phenomeno
Externí odkaz:
http://arxiv.org/abs/2404.15679
Autor:
Nath, Anu V. S., Roy, Anubhab
We investigate the dynamics of heavy inertial particles in a flow field due to an isolated, non-axisymmetric vortex. For our study, we consider a canonical elliptical vortex - the Kirchhoff vortex and its strained variant, the Kida vortex. Contrary t
Externí odkaz:
http://arxiv.org/abs/2403.10011
This study investigates the spatial distribution of inertial particles in turbulent Taylor-Couette flow. Direct numerical simulations are performed using a one-way coupled Eulerian-Lagrangian approach, with a fixed inner wall Reynolds number of 2500
Externí odkaz:
http://arxiv.org/abs/2402.17149
Autor:
Lee, Sangjoon, Marcus, Philip S.
The transient dynamics of a wake vortex, modelled as a strong swirling $q$-vortex, are investigated with a focus on optimal transient growth driven by continuous eigenmodes associated with continuous spectra. The pivotal contribution of viscous criti
Externí odkaz:
http://arxiv.org/abs/2402.07469