Abstract
Improving the aerodynamic performance of an airfoil is one of the primary interests of the Aerodynamicists. Such performance improvement can be achieved using passive or active flow control devices. One of such passive devices having a compact size along with an effective performance is the Micro Vortex Generators (MVGs). A special type of MVGs, which has been recently introduced in the aerospace industry, is “Triangular Shape” MVGs and its impact on aerodynamic characteristics is the main interest of this study. This study will compare the effects of various configurations through which delay of the flow separation using boundary layer control will be analysed by experimental and theoretical approach. The experimental investigations have been conducted using subsonic wind tunnel and the theoretical analysis using ANSYS® 13.0 FLUENT of which the final results are compared with each other.
Highlights
Engineers around the world are constantly refining, developing and experimenting new methods in improving aircraft performance
This project is centred on Micro Vortex Generators which have a superior effect than Vortex generators on the enhancing aircraft performance since the drag produced by MVGs is less than VGs
MVGs can be placed in various locations; the main purpose of applying these devices is creating longitudinal vortices which force the airflow to remain attached to surface, this results in the delay of flow separation and improvement in stall characteristics by increasing stall angle of attack which subsequently causes an increase in lift coefficient
Summary
Engineers around the world are constantly refining, developing and experimenting new methods in improving aircraft performance. One of such flight performance enhancing device is the Triangular MVGs. One of such flight performance enhancing device is the Triangular MVGs These are passive flow control devices which can be placed on different location on the aircrafts such as wings leading edge, fuselage surface, and engine nacelles. Other remarkable advantages of MVGs are noise suppression, reduced fuel consumption and reduced skin friction drag by delaying the laminar-turbulent transition. This helps in aircraft to extend the range and improves longitudinal manoeuvrability
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