AFRODITE is a financed project by the European Research Council aimed at experimentally investigating passive flow control methods for transition delay and hence skin-friction drag reduction. The transition delay is here obtained by generating longitudinal high speed streaks in the boundary layer (BL) by means of Miniature Vortex Generators (MVGs) mounted on the wall surface. The present work details the Direct Numerical Simulation (DNS) setup designed to reproduce the AFRODITE experiments and provide results showing that the proposed DNS is in good agreement with the experiments. The results of the DNS also show that even a minimal delay of the transition point results in an overall gain in terms of drag when MVGs are installed on the plate.
Numerical Investigation of the AFRODITE Transition Control Strategy
CAMARRI, SIMONE;
2014-01-01
Abstract
AFRODITE is a financed project by the European Research Council aimed at experimentally investigating passive flow control methods for transition delay and hence skin-friction drag reduction. The transition delay is here obtained by generating longitudinal high speed streaks in the boundary layer (BL) by means of Miniature Vortex Generators (MVGs) mounted on the wall surface. The present work details the Direct Numerical Simulation (DNS) setup designed to reproduce the AFRODITE experiments and provide results showing that the proposed DNS is in good agreement with the experiments. The results of the DNS also show that even a minimal delay of the transition point results in an overall gain in terms of drag when MVGs are installed on the plate.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
