Three Dimensionality of Hydrodynamic Forces on Vertical Circular Cylinder Oscillating Sinusoidally

A Comparison of Two- and Three-dimensional Wakes of an Oscillating Circular Cylinder

Natural convection heat transfer in an oscillating vertical cylinder

This paper studies the heat transfer analysis caused due to free convection in a vertically oscillating cylinder. Exact solutions are determined by applying the Laplace and finite Hankel transforms. Expressions for temperature distribution and velocity field corresponding to cosine and sine oscillations are obtained. The solutions that have been obtained for velocity are presented in the forms ...

Three-Dimensional Instabilities in the Wake of a Circular Cylinder

Mark Thompson Kerry Hourigan John Sheridan Department of Mechanical Engineering, Monash University, Clayton, Australia • The twoand three-dimensional wake structure behind a circular cylinder has been computed using a high-order spectral element technique. For the two-dimensional computations the predictions are compared with accurate experimental results and agree to within experimental uncert...

Effect of Wall Conduction on Natural Convection over a Vertical Slender Hollow Circular Cylinder

Abs t rac t . An analysis is made of the laminar natural convection of incompressible fluids over a slender, hollow circular cylinder with the inner surface at a constant temperature of Tb. The temperature of the outer surface must be solved from the coupled conduction of the cylinder and the natural convection of the fluid over the cylinder. The objective of this paper is to investigate the ef...

Numerical simulation of the flow behind a rotary oscillating circular cylinder

A numerical study was made of flow behind a circular cylinder in a uniform flow, where the cylinder was rotationally oscillated in time. The temporal behavior of vortex formation was scrutinized over broad ranges of the two externally specified parameters, i.e., the dimensionless rotary oscillating frequency (0.110<S f<0.220) and the maximum angular amplitude of rotation ~umax515°, 30°, and 60°...