Zobrazeno 1 - 10
of 233
pro vyhledávání: '"Fouxon, Itzhak"'
Linear shear flow bounded by a plane wall is an idealization that occurs in microfluidic devices and many other applications. Perfect plane approximation neglects surface irregularities and discrete particles adsorbed at the surface. Here we study th
Externí odkaz:
http://arxiv.org/abs/2405.15554
Publikováno v:
Anal. Chem. 96 (26), 10559-10568 (2024)
Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) has become a major tool in the analysis of adsorption of nanometric objects, such as proteins, viruses, liposomes and inorganic particles from the solution. While in vacuum extremely acc
Externí odkaz:
http://arxiv.org/abs/2311.15880
Lyapunov exponents and Lagrangian chaos suppression in compressible homogeneous isotropic turbulence
Autor:
Yu, Haijun, Fouxon, Itzhak, Wang, Jianchun, Li, Xiangru, Yuan, Li, Mao, Shipeng, Mond, Michael
Publikováno v:
Physics of Fluids, 35(12), 2023
We study Lyapunov exponents of tracers in compressible homogeneous isotropic turbulence at different turbulent Mach number $M_t$ and Taylor-scale Reynolds number $Re_\lambda$. We demonstrate that statistics of finite-time Lyapunov exponents have the
Externí odkaz:
http://arxiv.org/abs/2310.09717
In the present paper we theoretically study the shear force exerted on an infinite horizontal plane undergoing fast lateral oscillations in presence of a rigid particle suspended in the viscous liquid above the plate. The study is largely motivated b
Externí odkaz:
http://arxiv.org/abs/2212.00717
Collisional growth of droplets, such as occurring in warm clouds, is known to be significantly enhanced by turbulence. Whether particles collide depends on their flow history, in particular on their encounters with highly intermittent small-scale tur
Externí odkaz:
http://arxiv.org/abs/2208.05384
We study the impact of compressibility on two-dimensional turbulent flows, such as those modeling astrophysical disks. We demonstrate that the direction of cascade undergoes continuous transition as the Mach number Ma increases, from inverse at zero
Externí odkaz:
http://arxiv.org/abs/2206.10367
We study theoretically and numerically spatial distribution and collision rate of droplets that sediment in homogeneous isotropic Navier-Stokes turbulence. It is assumed that typical turbulent accelerations of fluid particles are much smaller than gr
Externí odkaz:
http://arxiv.org/abs/2205.06972
We derive the general solution of the unsteady Stokes equations for an unbounded fluid in spherical polar coordinates, in both time and frequency domains. The solution is an expansion in vector spherical harmonics and given as a sum of a particular s
Externí odkaz:
http://arxiv.org/abs/2110.00387
Publikováno v:
Physical Review E, 103(3), p.033110 (2021)
The Navier-Stokes equations generate an infinite set of generalized Lyapunov exponents defined by different ways of measuring the distance between exponentially diverging perturbed and unperturbed solutions. This set is demonstrated to be similar, ye
Externí odkaz:
http://arxiv.org/abs/2104.01235
Publikováno v:
eLife 2020; 9:e62014
Zooplankton live in dynamic environments where turbulence may challenge their limited swimming abilities. How this interferes with fundamental behavioral processes remains elusive. We reconstruct simultaneously the trajectories of flow tracers and ca
Externí odkaz:
http://arxiv.org/abs/2003.03798