Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge
To better understand the vortex shedding mechanism and to assess the capability of our numerical methodology, we conducted numerical investigations of vortex shedding from truncated and oblique trailing edges of a modified NACA 0009 hydrofoil. The hybrid particle-mesh method and the vorticity-based...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/565417 |
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| author | Seung-Jae Lee Jun-Hyeok Lee Jung-Chun Suh |
| author_facet | Seung-Jae Lee Jun-Hyeok Lee Jung-Chun Suh |
| author_sort | Seung-Jae Lee |
| collection | DOAJ |
| description | To better understand the vortex shedding mechanism and to assess the capability of our numerical methodology, we conducted numerical investigations of vortex shedding from truncated and oblique trailing edges of a modified NACA 0009 hydrofoil. The hybrid particle-mesh method and the vorticity-based subgrid scale model were employed to simulate these turbulent wake flows. The hybrid particle-mesh method combines the vortex-in-cell and the penalization methods. We have implemented numerical schemes to more efficiently use available computational resources. In this
study, we numerically investigated vortex shedding from various beveled trailing edges at a Reynolds number of 106. We then compared the numerical results with the experimental data, which show good agreement. We also conducted numerical simulations of wakes behind the hydrofoil at rest in periodically varying flows. Results reveal that vortex shedding is affected by the periodicity of a free-stream flow, as well as the trailing-edge shape. |
| format | Article |
| id | doaj-art-16535cc5e06c4e87bb77ecbc75668d33 |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-16535cc5e06c4e87bb77ecbc75668d332025-02-03T05:53:45ZengWileyModelling and Simulation in Engineering1687-55911687-56052015-01-01201510.1155/2015/565417565417Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing EdgeSeung-Jae Lee0Jun-Hyeok Lee1Jung-Chun Suh2Research Institute of Marine Systems Engineering, Seoul National University, Seoul 08826, Republic of KoreaDepartment of Naval Architecture and Ocean Engineering, Seoul National University, Seoul 08826, Republic of KoreaResearch Institute of Marine Systems Engineering, Seoul National University, Seoul 08826, Republic of KoreaTo better understand the vortex shedding mechanism and to assess the capability of our numerical methodology, we conducted numerical investigations of vortex shedding from truncated and oblique trailing edges of a modified NACA 0009 hydrofoil. The hybrid particle-mesh method and the vorticity-based subgrid scale model were employed to simulate these turbulent wake flows. The hybrid particle-mesh method combines the vortex-in-cell and the penalization methods. We have implemented numerical schemes to more efficiently use available computational resources. In this study, we numerically investigated vortex shedding from various beveled trailing edges at a Reynolds number of 106. We then compared the numerical results with the experimental data, which show good agreement. We also conducted numerical simulations of wakes behind the hydrofoil at rest in periodically varying flows. Results reveal that vortex shedding is affected by the periodicity of a free-stream flow, as well as the trailing-edge shape.http://dx.doi.org/10.1155/2015/565417 |
| spellingShingle | Seung-Jae Lee Jun-Hyeok Lee Jung-Chun Suh Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge Modelling and Simulation in Engineering |
| title | Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge |
| title_full | Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge |
| title_fullStr | Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge |
| title_full_unstemmed | Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge |
| title_short | Numerical Investigation on Vortex Shedding from a Hydrofoil with a Beveled Trailing Edge |
| title_sort | numerical investigation on vortex shedding from a hydrofoil with a beveled trailing edge |
| url | http://dx.doi.org/10.1155/2015/565417 |
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