Zobrazeno 1 - 10
of 12
pro vyhledávání: '"M. Houssem Kasbaoui"'
Autor:
Shuai Shuai, M. Houssem Kasbaoui
Publikováno v:
Journal of Fluid Mechanics. 936
We investigate the effect of inertial particles on the stability and decay of a prototypical vortex tube, represented by a two-dimensional Lamb–Oseen vortex. In the absence of particles, the strong stability of this flow makes it resilient to pertu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35befbedc7626fc71d348940c094de8c
https://doi.org/10.1017/jfm.2022.50
https://doi.org/10.1017/jfm.2022.50
We present a novel framework to deal with static and moving immersed boundaries (IB). In this strategy, called Volume-Filtering Immersed Boundary (VFIB) method, transport equations are derived by filtering the Navier-Stokes equations and accounting f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::656cc5f017fb6719acad49fff9f88a63
We investigate the effect of inertial particles dispersed in a circular patch of finite radius on the stability of a two-dimensional Rankine vortex in semi-dilute dusty flows. Unlike the particle-free case where no unstable modes exist, we show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f815d82818bc0fe21c796e1057f2f823
Publikováno v:
Journal of Fluid Mechanics. 877:82-104
In this study, we address the modification of sheared turbulence by dispersed inertial particles. The preferential sampling of the straining regions of the flow by inertial particles in turbulence leads to an inhomogeneous distribution of particles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c8c25db226a10154ce3d751301de6bd
https://doi.org/10.1017/jfm.2019.568
https://doi.org/10.1017/jfm.2019.568
We present a novel moving immersed boundary method (IBM) and employ it in direct numerical simulations (DNS) of the closed-vessel swirling von Karman flow in laminar and turbulent regimes. The IBM extends direct-forcing approaches by leveraging a tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7004e941f3f7cd8caec6fe7da66a2f0
http://arxiv.org/abs/2011.04758
http://arxiv.org/abs/2011.04758
Publikováno v:
Journal of Fluid Mechanics. 906
In the flamelet regime of turbulent premixed combustion the enhancement in the burning rates originates primarily from surface wrinkling. In this work we investigate the Reynolds number dependence of burning rates of spherical turbulent premixed meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56fcf37042d5fe140254eadfc5136430
https://doi.org/10.1017/jfm.2020.784
https://doi.org/10.1017/jfm.2020.784
Publikováno v:
Journal of Fluid Mechanics. 859:174-203
Particle-laden flows of sedimenting solid particles or droplets in a carrier gas have strong inter-phase coupling. Even at low particle volume fractions, the two-way coupling can be significant due to the large particle to gas density ratio. In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4294259f41d543b9fa438c4e60f1e698
https://doi.org/10.1017/jfm.2018.796
https://doi.org/10.1017/jfm.2018.796
Publikováno v:
Journal of Fluid Mechanics. 833:687-716
Simulations of homogeneously sheared turbulence (HST) are conducted until a universal self-similar state is established at the long non-dimensional time $\unicode[STIX]{x1D6E4}t=20$, where $\unicode[STIX]{x1D6E4}$ is the shear rate. The simulations a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2c53e1f0151533f924d695ecba382b9
https://doi.org/10.1017/jfm.2017.734
https://doi.org/10.1017/jfm.2017.734
Autor:
M. Houssem Kasbaoui
Publikováno v:
Physical Review Fluids. 4
When subject to strong shear, settling particles dispersed at semidilute concentrations may modulate the suspending flow significantly, in a way that enhances or attenuates turbulence. The modulation is enabled by the appearance of clusters and void
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba3e97800c455c7d0ca49c2d6c9c9d27
https://doi.org/10.1103/physrevfluids.4.124308
https://doi.org/10.1103/physrevfluids.4.124308
Publikováno v:
Journal of Fluid Mechanics. 770:85-123
We examine the linear stability of a homogeneous gas–solid suspension of small Stokes number particles, with a moderate mass loading, subject to a simple shear flow. The modulation of the gravitational force exerted on the suspension, due to prefer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::213a493bf2da27c9335433e222626c6f
https://doi.org/10.1017/jfm.2015.136
https://doi.org/10.1017/jfm.2015.136