Fluid flow around three circular cylinders having different diameters closely arranged in line.

Numerical simulation of three-dimensional flow around two circular cylinders in tandem arrangement

Three-dimensional fluid flow around two circular cylinders in tandem arrangement is computed by the finite difference method without a turbulence model. The overlapped grid technique is employed to catch the flow interference between the two tandem cylinders. It is confirmed that the abrupt numerical change of drag coefficients and the Strouhal number is in good agreement with the previous expe...

Digital-Finite Difference Method and its Application to 2D Simulations of Flow around Three Circular Cylinders

In this article we propose a numerical method using pixels in a digital image and show a numerical simulation for an incompressible viscous flow around three circular cylinders. The characteristic we present here combines the digital image, the fictitious domain and the finite difference method. Since the digital image consists of so many pixels and each of pixels forms a small square, the fini...

Effects of electric charge on osmotic flow across periodically arranged circular cylinders

Flow Visualization Around a Non - Circular Tube

The flow behavior around a cam shaped tube in cross flow has been investigated experimentally using flow visualization and pressure distribution measurement. The range of attack angle and Reynolds number based on an equivalent circular diameter are within 0 ≤ α ≤ 360˚ and 2 x 104 < Reeq < 3.4 x 104, respectively. The pressure drag features are clarified in relation to the flow behavior around t...

Three-dimensional simulations of fluid flow around a curved tube with circular section

In order to decrease the fluid dynamic forces of the U-bent tube with a circular section and avoid the occurrence of fluid-structure interaction problems, three-dimensional simulations of fluid flows around the tubes are carried out. In the case that the axis of the curved tube with the circular section is prevented from being normal to the direction of the flows approaching the tube, the forma...