Shear-induced migration of microswimmers in pressure-driven channel flow
نویسندگان
چکیده
منابع مشابه
Particle migration in pressure-driven flow of a Brownian suspension
Shear induced particle migration of 2 μm diameter spherical colloidal particles flowing through rectangular capillary tubes (50 μm × 500 μm cross section) is studied by confocal microscopy. The confocal microscope allows imaging of the flowing particles far from the walls of the tube, at particle velocities up to 8000 μm s−1. The particle volume fraction is varied from φ = 0.05–0.34, and the fl...
متن کاملMRI driven magnetic microswimmers.
Capsule endoscopy is a promising technique for diagnosing diseases in the digestive system. Here we design and characterize a miniature swimming mechanism that uses the magnetic fields of the MRI for both propulsion and wireless powering of the capsule. Our method uses both the static and the radio frequency (RF) magnetic fields inherently available in MRI to generate a propulsive force. Our st...
متن کاملInterfacial Stability In Turbulent Pressure-Driven Channel Flow
We consider the motion of a deformable interface that separates a fully-developed turbulent gas flow from a thin layer of laminar liquid. We outline a linear model to describe the interaction between the turbulent gas flow and the interfacial waves; this consists of the Orr-Sommerfeld equation with the appropriate turbulent mean flow profile, together with a turbulent stress closure scheme. Thi...
متن کاملPressure - driven flow in a channel with porous walls ∗
The finite-Reynolds-number three-dimensional flow in a channel bounded by one and two parallel porous walls is studied numerically. The porous medium is modelled by spheres in a simple cubic arrangement. Detailed results on the flow structure and the hydrodynamic forces and couple acting on the sphere layer bounding the porous medium are reported and their dependence on the Reynolds number illu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2020
ISSN: 0022-1120,1469-7645
DOI: 10.1017/jfm.2020.118