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Hydrodynamic performance improvement on small horizontal axis current turbine blade using different tube slots configurations
Highlights The addition of tube slots at a regular interval is numerically studied here. Tube slot starting at 0.05C and ending at 0.4C is the best optimum location. The optimum diameter of the tube slot is 9 mm. The inclusion of tube slots increases the stall angle of NACA S1210 hydrofoil from 10° to 12°.
Abstract Vortex generators are used extensively as a passive flow control devices to delay or remove the boundary layer separation, which affects the hydrodynamic performance of the hydrofoil. In this paper, a new approach is introduced to overcome the boundary layer separation on the NACA S1210 hydrofoil. The outcome of tube slots combination in the S1210 hydrofoil on the boundary layer separation are numerically investigated. The performance is compared with respect to the force coefficients and glide ratio. The effects of tube slot inlet positions with different diameters on S1210 hydrofoil are presented here. The results show that the smaller diameter tube slots starting near the leading edge improves the hydrodynamics performance of the hydrofoil.
Hydrodynamic performance improvement on small horizontal axis current turbine blade using different tube slots configurations
Highlights The addition of tube slots at a regular interval is numerically studied here. Tube slot starting at 0.05C and ending at 0.4C is the best optimum location. The optimum diameter of the tube slot is 9 mm. The inclusion of tube slots increases the stall angle of NACA S1210 hydrofoil from 10° to 12°.
Abstract Vortex generators are used extensively as a passive flow control devices to delay or remove the boundary layer separation, which affects the hydrodynamic performance of the hydrofoil. In this paper, a new approach is introduced to overcome the boundary layer separation on the NACA S1210 hydrofoil. The outcome of tube slots combination in the S1210 hydrofoil on the boundary layer separation are numerically investigated. The performance is compared with respect to the force coefficients and glide ratio. The effects of tube slot inlet positions with different diameters on S1210 hydrofoil are presented here. The results show that the smaller diameter tube slots starting near the leading edge improves the hydrodynamics performance of the hydrofoil.
Hydrodynamic performance improvement on small horizontal axis current turbine blade using different tube slots configurations
Kundu, Parikshit (Autor:in)
10.07.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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