| Autor: |
Ok-Sok Gim, Gyoung-Woo Lee |
| Rok vydání: |
2013 |
| Předmět: |
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| Zdroj: |
Ocean Engineering. 60:28-38 |
| ISSN: |
0029-8018 |
| DOI: |
10.1016/j.oceaneng.2012.12.009 |
| Popis: |
Tip vortex structure around a NACA 0018 foil with and without an endplate is studied using PIV method in a circulating water channel. The Reynolds number based on the chord length (100 mm) is Re=2.5×10 4 . The analysis also includes varying angles of attack α =10° and α =20°. Velocity profiles are obtained from 1C (chord length) to 3C, measured from the trailing edge. Sectional velocity profiles are also obtained and compared both foils at the same angles of attack. Vortex formation is changed near the end-span section due to the prevention of roll-up phenomenon. The endplate also decreases Reynolds shear stress in the wake region. It can be judged that the flow formation around the foil is affected by the endplate untill the mid-span. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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