Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Wind and Structures Volume 29, Number 1, July 2019 , pages 055-64 DOI: https://doi.org/10.12989/was.2019.29.1.055 |
|
|
|
Wakes of two inline cylinders at a low Reynolds number |
||
Farhan Zafar, Md. Mahbub Alam, Zaka Muhammad and Md. Islam
|
||
| Abstract | ||
| The effect of vortex impingement on the fluid dynamics around a cylinder submerged in the wake of another of different diameters is numerically investigated at a Reynolds number Re = 200. While the diameter (D) of the downstream cylinder is fixed, impinging vortices are produced from the upstream cylinder diameter (d) varied as d/D = 0.24, 0.4, 0.6, 0.8 and 1.0, with a spacing ratio L = 5.5d, where L is the distance between the center of the upstream cylinder to the front stagnation point of the downstream cylinder. Two-dimensional simulations are carried out using the finite volume method. Fluid forces acting on the two cylinders are correlated with impinging vortices, vortex shedding, and wake structure. Different facets of wake formation, wake structure, and flow separation and their connections to fluid forces are discussed. | ||
| Key Words | ||
| complex terrain; typhoon wind field; CFD simulation; surface roughness length; topography | ||
| Address | ||
| Farhan Zafar, Md. Mahbub Alam and Zaka Muhammad: Institute for Turbulence-Noise-Vibration Interaction and Control Harbin Institute of Technology (Shenzhen),Shenzhen 518055, China Md. Islam: Department of Mechanical Engineering, Khalifa University of Science and Technology, P.O. Box 2533, Abu Dhabi, United Arab Emirates | ||