Numerical Simulation on Active Separation Control of MEL001 Airfoil by MJVG

In order to obtain fundamental performances of the newly developed micro-jet vortex generator, MJVG, installed on MEL001 airfoil, a series of numerical simulation was carried out. MJVG is an array of continuous small jets and can generate single longitudinal vortex with arbitrary size and intensity. Main results in this study is summarized as follows: 1) Based on the experimental observation, gain in the work done by the lift due to MJVG seems to be promising, even including mechanical losses. 2) There were cases where MJVG actually brought appreciable increase in the lift / drag ratio. 3) At a certain condition, MJVG was found to be effective to suppress the fluctuation of the aerodynamic force acting on the body.