Oscillating Motion of Triangular Cylinder in a Viscous Fluid
The system consisting of two rigid bodies in a viscous fluid is considered. The main body with mass M is placed in a viscous incompressible fluid, and the body with mass m moves inside the main body. This system is known as vibrobot which can be used in arbitrary inspection fluid mechanic objects su...
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| Format: | Article |
| Language: | English |
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Iranian Association of Naval Architecture and Marine Engineering
2016-12-01
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| Series: | International Journal of Coastal and Offshore Engineering |
| Subjects: | |
| Online Access: | http://ijcoe.org/article-1-82-en.html |
| _version_ | 1811321473776746496 |
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| author | Hamid Malah Yuri Sergeyevich Chumakov Sara Ramzani Movafagh |
| author_facet | Hamid Malah Yuri Sergeyevich Chumakov Sara Ramzani Movafagh |
| author_sort | Hamid Malah |
| collection | DOAJ |
| description | The system consisting of two rigid bodies in a viscous fluid is considered. The main body with mass M is placed in a viscous incompressible fluid, and the body with mass m 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 μ_1=0.35, the ratio of the internal mass to the vibrobot mass μ_2=0.325 and dimensionless oscillation frequency f=1/5, when Reynolds number takes values in the range of 50<Re<250. Calculations have been performed with different initial approximations, determined by different initial velocities of the incident flow. |
| first_indexed | 2024-04-13T13:18:24Z |
| format | Article |
| id | doaj.art-571e36cbae014310a7dcb0981ad7f510 |
| institution | Directory Open Access Journal |
| issn | 2538-2667 2588-3186 |
| language | English |
| last_indexed | 2024-04-13T13:18:24Z |
| publishDate | 2016-12-01 |
| publisher | Iranian Association of Naval Architecture and Marine Engineering |
| record_format | Article |
| series | International Journal of Coastal and Offshore Engineering |
| spelling | doaj.art-571e36cbae014310a7dcb0981ad7f5102022-12-22T02:45:24ZengIranian Association of Naval Architecture and Marine EngineeringInternational Journal of Coastal and Offshore Engineering2538-26672588-31862016-12-0141925Oscillating Motion of Triangular Cylinder in a Viscous FluidHamid Malah0Yuri Sergeyevich Chumakov1Sara Ramzani Movafagh2 Department of Hydroaerodynamics, Institute of Applied Mathematics and Mechanics, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, 194064, Russia Department of Hydroaerodynamics, Institute of Applied Mathematics and Mechanics, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, 194064, Russia Department of Hydroaerodynamics, Institute of Applied Mathematics and Mechanics, Peter the Great St.Petersburg Polytechnic University, St. Petersburg, 194064, Russia The system consisting of two rigid bodies in a viscous fluid is considered. The main body with mass M is placed in a viscous incompressible fluid, and the body with mass m 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 μ_1=0.35, the ratio of the internal mass to the vibrobot mass μ_2=0.325 and dimensionless oscillation frequency f=1/5, when Reynolds number takes values in the range of 50<Re<250. Calculations have been performed with different initial approximations, determined by different initial velocities of the incident flow.http://ijcoe.org/article-1-82-en.htmltriangular cylinder harmonic oscillation movable internal mass numerical simulation openfoam viscous fluid. |
| spellingShingle | Hamid Malah Yuri Sergeyevich Chumakov Sara Ramzani Movafagh Oscillating Motion of Triangular Cylinder in a Viscous Fluid International Journal of Coastal and Offshore Engineering triangular cylinder harmonic oscillation movable internal mass numerical simulation openfoam viscous fluid. |
| title | Oscillating Motion of Triangular Cylinder in a Viscous Fluid |
| title_full | Oscillating Motion of Triangular Cylinder in a Viscous Fluid |
| title_fullStr | Oscillating Motion of Triangular Cylinder in a Viscous Fluid |
| title_full_unstemmed | Oscillating Motion of Triangular Cylinder in a Viscous Fluid |
| title_short | Oscillating Motion of Triangular Cylinder in a Viscous Fluid |
| title_sort | oscillating motion of triangular cylinder in a viscous fluid |
| topic | triangular cylinder harmonic oscillation movable internal mass numerical simulation openfoam viscous fluid. |
| url | http://ijcoe.org/article-1-82-en.html |
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