This contribution presents a numerical analysis based on the effects of aerodynamics of the bump-based humpback whale fins available on the turbine blade edge. In this research, performance comparisons have been made based on dual sequestered blades. One of the blades was sinusoidal in shaped with Bumped Lead Edge (BLE) and the other one with Upright Leading Edge (ULE). However, all the blades are based on a similar cross-sectional profile i.e. NACA-012. This research has been based on simulations of Reynold’s number i.e. 1.8.105 of Attack Angle (AA) i.e. from ‘0º - 30º’. At this angle, especially greater than 10º, the BLE has indicated an enhancement in about 3.5% to 9.0% lift and a reducing drag whereas the negligible variation in lifts and minor drag is displayed for AA less than 10º. The findings in this result for BLE have indicated a substantial achievement in aerodynamic features for particular AA.
Keywords
Bumped Leading Edge (BLE), Upright Leading Edge (ULE), Attack Angle (AA)
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Francisco Pedro
Shih-Chau Lin
Department of Mechanical and Mechatronics Engineering, National Ocean University, Taiwan.
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Cite this article
Shih-Chau Lin, “Hydromechanics, Aerodynamics and Thermodynamics: Critical Numerical Analysis of Aerodynamics of BLE Turbine Blade”, Journal of Machine and Computing, vol.1, no.1, pp. 020-028. January 2021, doi: 10.53759/7669/jmc202101003.
