The instabilities in a sinusoidally oscillating non-separated flow over smooth circular cylinders in the range of Keulegan Carpenter numbers, K, from about... T Sarpkaya - 《Journal of Fluid Mechanics》 被引量: 64发表: 2002年 Employing controlled vibrations to predict fluid forces on a cylinder...
oscillating cylinderslift forcein-line forcehydrodynamic interferenceThe present brief paper is intended to show that the fluid forces on a small cylinder can be considerably magnified when it is in the flow field of a larger cylinder. Two cylinders of unequal diameter are oscillated in a tank of...
The unsteady forces on a square cylinder in sinusoidally oscillating flows with non-zero-mean velocities are investigated numerically by using a weakly compressible-flow method with three-dimensional large eddy simulations. The major parameters in the analysis are Keulegan-Carpenter number ( KC ) and ...
This paper aims to explore the possible solutions for the movement of an Oldroyd-B fluid placed under certain conditions, i.e. the fluid is present within two cylinders, which are coaxial and oscillating within. Having said that the governing model will
Triantafyllou, “Forces on Oscillating Uniform and Tapered Cylinders in Crossflow” Journal of Fluid Mechanics, 1998, 363:97–114. CrossRef R.E.D. Bishop, A.Y. Hassan, “The Lift and Drag Forces on a Circular Cylinder Oscillating in a Flowing Fluid,” Proceedings of the Royal Society ...
Force Measurements and Flow Visualization of Circular and Square Cylinders in Oscillatory Flow. The forces acting on and the flow patterns around a rigid bluff body submerged in an oscillatory flow were studied. The force coefficients on a circular cy... A Okajima,T Matsumoto,S Kimura - 《Jsme...
A. (2011) Exact solutions for the flow of second grade fluid in annulus between torsionally oscillating cylinders, Acta Mech. Sin., 27(2): 222-227Mahmood A., Parveen S. and Khan A. N. (2011)Exact solutions for the flow of second grade fluid in annulus between torsionally oscillating ...
Our experiments and theoretical model elucidate that the coupling depends on the distance between the interfaces which governs the forces acting on the interfaces, and also explain the transition between the in-phase and out-of-phase modes of droplet breakup. Therefore, the microfluidic system of ...
The voids defining the operational cylinders 47 and 49 each transverse an arc angle of about 120 to 130 degrees. Referring to FIG. 3, a dissection of the device 11, the torsional oscillating masses 31 and 33 can easily be seen to be approximately toroidal shaped. The central spindle 27 ...
the cylinders rotate on an axis generally parallel to the axis of revolution of the shafts. When the apparatus is immersed in a fluid flow (gaseous or liquid) a torque of rotation is developed when the shafts are aligned with the fluid flow, and this torque of rotation is reduced as the...