Warning: include_once(/home/clients/0b55f44bf8d530a3593f8dc13d053404/sites/corrovision/prive/formulaires/selecteur/generique_fonctions.php): failed to open stream: No such file or directory in /home/clients/0b55f44bf8d530a3593f8dc13d053404/sites/corrovision/ecrire/inc/utils.php on line 1530

Warning: include_once(): Failed opening '/home/clients/0b55f44bf8d530a3593f8dc13d053404/sites/corrovision/prive/formulaires/selecteur/generique_fonctions.php' for inclusion (include_path='.:/opt/php7.1/lib/php') in /home/clients/0b55f44bf8d530a3593f8dc13d053404/sites/corrovision/ecrire/inc/utils.php on line 1530
TY - CONF TI - APS -72nd Annual Meeting of the APS Division of Fluid Dynamics - Event - Improvement in efficiency of horizontal axis current turbine with passive flow control methods T2 - 72nd Annual Meeting of the APS Division of Fluid Dynamics AB - Energy from river/tidal current offers the promise of predictable electrical generation at higher power densities than other energy sources. For successful exploitation of this resource, the improvement in efficiency of horizontal axis current turbine is of primary importance. This study presents a hydrodynamic design of horizontal axis current turbine with passive flow control using vortex generators and tubes. The performance of the rotor can be determined by various parameters including the number of blades, shape, diameter, twist angle etc. In this study, analysis of the current turbine rotor is conducted using blade element momentum theory. Firstly, NACA S1210 hydrofoil shape was selected. Then the variation of chord length and twist angle along the blade span was determined. Finally a 5 m diameter, 3 bladed horizontal axis current turbine was designed. The rotor has a maximum power coefficient and maximum power of 0.47 and 42.71 kw at the current speed of 2.1 m/s and tip speed ratio of 6 when the hydrofoil with tubes has been used to design the horizontal axis current turbine. It has been proved that inclusion of VGs and tubes on the turbine can help to increase the power production by 9. 8% and 14.7 % respectively. C3 - Bulletin of the American Physical Society DP - meetings.aps.org PB - American Physical Society UR - http://meetings.aps.org/Meeting/DFD19/Session/M02.7 Y2 - 2019/09/25/08:51:29 ER -