Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity
We investigated the aerodynamic characteristics of a three-dimensional (3D) wing with an endplate in the vicinity of the free surface by solving incompressible Navier-Stokes equations with the turbulence closure model. The endplate causes a blockage effect on the flow, and an additional viscous effe...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2012-12-01
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| Series: | International Journal of Naval Architecture and Ocean Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2092678216303648 |
| _version_ | 1818546037734768640 |
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| author | Jae Hwan Jung Mi Jeong Kim Hyun Sik Yoon Pham Anh Hung Ho Hwan Chun Dong Woo Park |
| author_facet | Jae Hwan Jung Mi Jeong Kim Hyun Sik Yoon Pham Anh Hung Ho Hwan Chun Dong Woo Park |
| author_sort | Jae Hwan Jung |
| collection | DOAJ |
| description | We investigated the aerodynamic characteristics of a three-dimensional (3D) wing with an endplate in the vicinity of the free surface by solving incompressible Navier-Stokes equations with the turbulence closure model. The endplate causes a blockage effect on the flow, and an additional viscous effect especially near the endplate. These combined effects of the endplate significantly reduce the magnitudes of the velocities under the lower surface of the wing, thereby enhancing aerodynamic performance in terms of the force coefficients. The maximum lift-to-drag ratio of a wing with an endplate is increased 46% compared to that of wing without an endplate at the lowest clearance. The tip vortex of a wing-with-endplate (WWE) moved laterally to a greater extent than that of a wing-without-endplate (WOE). This causes a decrease in the induced drag, resulting in a reduction in the total drag. |
| first_indexed | 2024-12-12T07:47:47Z |
| format | Article |
| id | doaj.art-88e4c0246aa74dc1bc324e6701aee7ff |
| institution | Directory Open Access Journal |
| issn | 2092-6782 |
| language | English |
| last_indexed | 2024-12-12T07:47:47Z |
| publishDate | 2012-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Naval Architecture and Ocean Engineering |
| spelling | doaj.art-88e4c0246aa74dc1bc324e6701aee7ff2022-12-22T00:32:33ZengElsevierInternational Journal of Naval Architecture and Ocean Engineering2092-67822012-12-014447748710.2478/IJNAOE-2013-0112Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximityJae Hwan Jung0Mi Jeong Kim1Hyun Sik Yoon2Pham Anh Hung3Ho Hwan Chun4Dong Woo Park5Department of Naval Architecture and Ocean Engineering, Pusan National University, Busan, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan, KoreaGlobal Core Research Center for Ships and Offshore Plants, Pusan National University, Busan, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan, KoreaDepartment of Naval Architecture and Ocean Engineering, Pusan National University, Busan, KoreaMaritime Research Institute, Hyundai Heavy Industries Co. Ltd, Ulsan, KoreaWe investigated the aerodynamic characteristics of a three-dimensional (3D) wing with an endplate in the vicinity of the free surface by solving incompressible Navier-Stokes equations with the turbulence closure model. The endplate causes a blockage effect on the flow, and an additional viscous effect especially near the endplate. These combined effects of the endplate significantly reduce the magnitudes of the velocities under the lower surface of the wing, thereby enhancing aerodynamic performance in terms of the force coefficients. The maximum lift-to-drag ratio of a wing with an endplate is increased 46% compared to that of wing without an endplate at the lowest clearance. The tip vortex of a wing-with-endplate (WWE) moved laterally to a greater extent than that of a wing-without-endplate (WOE). This causes a decrease in the induced drag, resulting in a reduction in the total drag.http://www.sciencedirect.com/science/article/pii/S2092678216303648Wing in groundEndplateTip vortexLiftDrag |
| spellingShingle | Jae Hwan Jung Mi Jeong Kim Hyun Sik Yoon Pham Anh Hung Ho Hwan Chun Dong Woo Park Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity International Journal of Naval Architecture and Ocean Engineering Wing in ground Endplate Tip vortex Lift Drag |
| title | Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity |
| title_full | Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity |
| title_fullStr | Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity |
| title_full_unstemmed | Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity |
| title_short | Endplate effect on aerodynamic characteristics of three-dimensional wings in close free surface proximity |
| title_sort | endplate effect on aerodynamic characteristics of three dimensional wings in close free surface proximity |
| topic | Wing in ground Endplate Tip vortex Lift Drag |
| url | http://www.sciencedirect.com/science/article/pii/S2092678216303648 |
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