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http://dx.doi.org/10.3795/KSME-B.2017.41.4.239

Effects of Cylinder Rotation on Particle Laden Flow and Particle Deposition on a Rotating Circular Cylinder  

Lee, Seungwoo (Dept. of Mechanical Engineering, Kumoh National Institute of Technology)
Kim, Dongjoo (Dept. of Mechanical Engineering, Kumoh National Institute of Technology)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.41, no.4, 2017 , pp. 239-248 More about this Journal
Abstract
It is important to understand the dispersion and deposition characteristics of particles in the flow around a circular cylinder. The rotation of a cylinder is considered as a means to modify the particle deposition in this study. We numerically investigate the effects of the rotational speed of a cylinder and the particle Stokes number on particle dispersion and deposition as well as flow characteristics. Results show that the deposition efficiency of small particles (with the Stokes number smaller than 4) decreases significantly as the rotational speed increases. However, when the Stokes number is larger than 4, the deposition efficiency increases slightly with the rotational speed of the cylinder. Meanwhile, for a given rotational speed, the increase in the Stokes number leads to an increase in deposition efficiency and deposited area.
Keywords
Rotating Circular Cylinder; Particle Laden Flow; Particle Deposition; Particle Dispersion;
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