Propulsion by a helical flagellum in a capillary tube
نویسندگان
چکیده
منابع مشابه
Numerical study on the propulsion of a bacterial flagellum in a viscous fluid using an immersed boundary method
0045-7930/$ see front matter Crown Copyright 2 http://dx.doi.org/10.1016/j.compfluid.2012.03.012 ⇑ Corresponding author. Tel.: +82 51 200 7636; fax E-mail address: [email protected] (S. Kang). The propulsion of a bacterial flagellum in a viscous fluid has gained much attention in the field of biological fluid dynamics. Inspired by the bacterial propulsion, we present a three-dimensional computat...
متن کامل“ Corkscrew ” vs . “ tank - treading ” propulsion of spirochetes .
Submitted for the DFD10 Meeting of The American Physical Society “Corkscrew” vs. “tank-treading” propulsion of spirochetes. ALEXANDER LESHANSKY, Department of Chemical Engineering, Technion-IIT, Haifa, Israel, ODED KENNETH, Physics Department, Technion-IIT, Haifa, Israel — We consider the potential mechanism of spirochete propulsion driven by twirling of the outer cell surface coupled to counte...
متن کاملEffects of geometric parameters on swimming of micro organisms with single helical flagellum in circular channels.
We present a computational fluid dynamics (CFD) model for the swimming of micro organisms with a single helical flagellum in circular channels. The CFD model is developed to obtain numerical solutions of Stokes equations in three dimensions, validated with experiments reported in literature, and used to analyze the effects of geometric parameters, such as the helical radius, wavelength, radii o...
متن کاملThe effect of Geometrical parameters on heat transfer coefficient in helical double tube exchangers
Helical coil heat exchangers are widely used in industrial applications ranging fromcryogenic processes, air-conditioning, and nuclear reactors to waste heat recovery due totheir compact size and high heat transfer coefficient. In this kind of heat exchangers, flowand heat transfer are complicated. This paper reports a numerical investigation of theinfluence of different parameters such as coil...
متن کاملThe efficiency of propulsion by a rotating flagellum.
At very low Reynolds number, the regime in which fluid dynamics is governed by Stokes equations, a helix that translates along its axis under an external force but without an external torque will necessarily rotate. By the linearity of the Stokes equations, the same helix that is caused to rotate due to an external torque will necessarily translate. This is the physics that underlies the mechan...
متن کامل