An overset mesh approach for a vibrating cylinder in uniform flow
This paper has numerically investigated twodimensional laminar flow over a vibrating circular cylinder. Numerical simulation is performed using the dynamic overset mesh method available in commercial software ANSYS FLUENT 19.0. A simple harmonic motion is applied to simulate the cylinder vibration u...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-09-01
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| Series: | Curved and Layered Structures |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/cls-2022-0178 |
| _version_ | 1811320140699009024 |
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| author | Hamdoon Farouk Omar Jaber Alaa Abdulhady Flaieh Enass H. |
| author_facet | Hamdoon Farouk Omar Jaber Alaa Abdulhady Flaieh Enass H. |
| author_sort | Hamdoon Farouk Omar |
| collection | DOAJ |
| description | This paper has numerically investigated twodimensional laminar flow over a vibrating circular cylinder. Numerical simulation is performed using the dynamic overset mesh method available in commercial software ANSYS FLUENT 19.0. A simple harmonic motion is applied to simulate the cylinder vibration using the user-defined function (UDF) tool in FLUENT. To examine the accuracy and the capability of the present overset mesh approach, two test types of cylinder vibration are simulated: crossflow and inline vibrations. All simulations are performed at a constant Reynolds number (Re = 100) to predict the occurrence of synchronization or lock-in phenomenon. For the case of crossflow vibration, it is observed that lock-in occurs with cylinder oscillation frequency near the Strouhal frequency of the fixed cylinder. However, for the inline vibration, lockin occurs near twice the Strouhal frequency of the fixed cylinder. Furthermore, in the case of crossflow oscillation, the frequency content in the lift coefficients’ time history is successfully linked to the phase portraits’ shape and the vorticity field. The simulation results are consistent with the available published data in the literature. This indicates that the present numerical technique is valid and capable of modeling flows with moving structural systems. |
| first_indexed | 2024-04-13T12:54:05Z |
| format | Article |
| id | doaj.art-b7d41d4645814dca80de09145c3aab4d |
| institution | Directory Open Access Journal |
| issn | 2353-7396 |
| language | English |
| last_indexed | 2024-04-13T12:54:05Z |
| publishDate | 2022-09-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Curved and Layered Structures |
| spelling | doaj.art-b7d41d4645814dca80de09145c3aab4d2022-12-22T02:46:06ZengDe GruyterCurved and Layered Structures2353-73962022-09-019139640210.1515/cls-2022-0178An overset mesh approach for a vibrating cylinder in uniform flowHamdoon Farouk Omar0Jaber Alaa Abdulhady1Flaieh Enass H.2College of Engineering, University of Wasit, Wasit, IraqMechanical Engineering Department, University of Technology- Iraq, Baghdad, IraqMechanical Engineering Department, University of Technology- Iraq, Baghdad, IraqThis paper has numerically investigated twodimensional laminar flow over a vibrating circular cylinder. Numerical simulation is performed using the dynamic overset mesh method available in commercial software ANSYS FLUENT 19.0. A simple harmonic motion is applied to simulate the cylinder vibration using the user-defined function (UDF) tool in FLUENT. To examine the accuracy and the capability of the present overset mesh approach, two test types of cylinder vibration are simulated: crossflow and inline vibrations. All simulations are performed at a constant Reynolds number (Re = 100) to predict the occurrence of synchronization or lock-in phenomenon. For the case of crossflow vibration, it is observed that lock-in occurs with cylinder oscillation frequency near the Strouhal frequency of the fixed cylinder. However, for the inline vibration, lockin occurs near twice the Strouhal frequency of the fixed cylinder. Furthermore, in the case of crossflow oscillation, the frequency content in the lift coefficients’ time history is successfully linked to the phase portraits’ shape and the vorticity field. The simulation results are consistent with the available published data in the literature. This indicates that the present numerical technique is valid and capable of modeling flows with moving structural systems.https://doi.org/10.1515/cls-2022-0178cylinder vibrationlaminar flowoverset meshfast fourier transformcrossflowinline vibration |
| spellingShingle | Hamdoon Farouk Omar Jaber Alaa Abdulhady Flaieh Enass H. An overset mesh approach for a vibrating cylinder in uniform flow Curved and Layered Structures cylinder vibration laminar flow overset mesh fast fourier transform crossflow inline vibration |
| title | An overset mesh approach for a vibrating cylinder in uniform flow |
| title_full | An overset mesh approach for a vibrating cylinder in uniform flow |
| title_fullStr | An overset mesh approach for a vibrating cylinder in uniform flow |
| title_full_unstemmed | An overset mesh approach for a vibrating cylinder in uniform flow |
| title_short | An overset mesh approach for a vibrating cylinder in uniform flow |
| title_sort | overset mesh approach for a vibrating cylinder in uniform flow |
| topic | cylinder vibration laminar flow overset mesh fast fourier transform crossflow inline vibration |
| url | https://doi.org/10.1515/cls-2022-0178 |
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