Zobrazeno 1 - 10
of 279
pro vyhledávání: '"Zhao, Lihao"'
We use reinforcement learning to find strategies that allow microswimmers in turbulence to avoid regions of large strain. This question is motivated by the hypothesis that swimming microorganisms tend to avoid such regions to minimise the risk of pre
Externí odkaz:
http://arxiv.org/abs/2404.19561
In the present study, we investigate the settling of prolate spheroidal particles in a quiescent fluid by means of particle-resolved direct numerical simulations. By varying the particle volume fraction (phi) from 0.1% to 10%, we observe a non-monoto
Externí odkaz:
http://arxiv.org/abs/2404.11832
In the present study, we perform direct numerical simulations of compressible turbulent boundary layers at the free stream Mach number of 2 ~ 6 laden with dilute phase of spherical particles to investigate the Mach number effects on particle transpor
Externí odkaz:
http://arxiv.org/abs/2401.01157
Zooplankton in a quiescent environment can detect predators by hydrodynamic sensing, triggering powerful escape responses. Since turbulent strain tends to mask the hydrodynamic signal, the organisms should avoid such regions, but it is not known how
Externí odkaz:
http://arxiv.org/abs/2309.09641
Publikováno v:
In Journal of Computational Physics 1 July 2024 508
Publikováno v:
In International Journal of Heat and Mass Transfer 15 August 2024 228
Autor:
Jiang, Haoran, Zeng, Yuan, Jiang, Xue, Xu, Xuni, Zhao, Lihao, Yuan, Xiaoye, Xu, Jun, Zhao, Mengjing, Wu, Fang, Li, Gang
Publikováno v:
In BBA - Molecular Basis of Disease August 2024 1870(6)
Many plankton species undergo daily vertical migration to large depths in the turbulent ocean. To do this efficiently, the plankton can use a gyrotactic mechanism, aligning them with gravity to swim downwards, or against gravity to swim upwards. Many
Externí odkaz:
http://arxiv.org/abs/2105.12232
Publikováno v:
Physics of Fluids 33, 123313 (2021)
Previous studies on nonspherical particle-fluid interaction were mostly confined to elongated fiber-like particles, which were observed to induce turbulence drag reduction. However, with the presence of tiny disk-like particles how wall turbulence is
Externí odkaz:
http://arxiv.org/abs/2102.03775
Marine plankton are usually modeled as settling elongated micro-swimmers. For the first time, we consider the torque induced by fluid inertia on such swimmers, and we discover that they spontaneously swim in the direction opposite to gravity. We anal
Externí odkaz:
http://arxiv.org/abs/2011.10253