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Oscillating motion of triangular cylinder in a viscous fluid

Credit to Download: 1 | Page Numbers 9 | Abstract Views: 166
Year: 2016
COI code: NSMI18_041
Paper Language: English

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Authors Oscillating motion of triangular cylinder in a viscous fluid

Hamid Malah - Department of Hydroaerodynamics, Institute of Applied Mathematics and Mechanics, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, 194064, Russia;
Yuri Sergeyevich Chumakov - Department of Hydroaerodynamics, Institute of Applied Mathematics and Mechanics, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, 194064, Russia
Sara Ramzani Movafagh - Department of Civil Engineering and Applied Ecology, Institute of Civil Engineering, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, 194064, Russia

Abstract:

The system consisting of two rigid bodies in a viscous fluid is considered. The main body with mass is placed in a viscous incompressible fluid, and the body with mass moves inside the main body. This system is known as vibrobot which can be used in arbitrary inspection fluid mechanic objects such as oil industries pipes and tanks, as well as marine industries, medicine, etc. In this paper, the interaction between the vibrobot and viscous fluid is studied to achieve the motion laws of the vibrobot with the harmonic oscillation of internal mass. Also the flow structure around vibrobot and its effects on the hydrodynamic force acting on the vibrobot are investigated. Analyses are carried out by direct numerical simulation of the vibrobot motion in a viscous fluid by OpenFOAM package. Calculations are performed for the following combinations of control parameters; The ratio of the viscous fluid mass to the vibrobot mass , the ratio of the internal mass to the vibrobot mass and dimensionless oscillation frequency , when Reynolds number takes values in the range of . Calculations have been performed with different initial approximations, determined by different initial velocities of the incident flow.

Keywords:

Triangular cylinder, Harmonic oscillation, Movable internal mass, Numerical simulation, OpenFOAM, Viscous fluid

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COI code: NSMI18_041

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Malah, Hamid; Yuri Sergeyevich Chumakov & Sara Ramzani Movafagh, 2016, Oscillating motion of triangular cylinder in a viscous fluid, 18th Conference on Marine Industries, جزيره كيش, انجمن مهندسي دريايي ايران, https://www.civilica.com/Paper-NSMI18-NSMI18_041.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Malah, Hamid; Yuri Sergeyevich Chumakov & Sara Ramzani Movafagh, 2016)
Second and more: (Malah; Chumakov & Ramzani Movafagh, 2016)
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