TY - GEN
T1 - Prediction of a Laminar Separation Bubble on Low-Reynolds Airfoils Using Variational Multiscale Method
AU - Brunelli, Carlo
AU - Avirović, Matija
AU - Janssens, Bart
AU - Marinus, Benoît
AU - May, Georg
AU - Runacres, Mark
PY - 2024
Y1 - 2024
N2 - The paper presents the application of a finite element numerical approach for predicting the development and locating the Laminar Separation Bubble (LSB) on low Reynolds airfoils. The method is a linearized and segregated variation of the Variational Multi-Scale method (LS-VMS). The aim is to demonstrate the validity of this new method, overcoming the need for calibration based on experiments and/or custom-fitting transition functions. It has been tested on the SD7003 airfoil at Re = 60000, obtaining results aligned with previously published experimental and numerical results. Furthermore, it has been tested for the DU89-134 profile, a high lift-to-drag ratio airfoil used for high-altitude pseudo-satellite applications. For this geometry, various configurations (AoA = 5°, Re =250000, 500000) compatible with low stratospheric flight have been examined and compared with RANS simulations coupled with transitional models showing close agreement.
AB - The paper presents the application of a finite element numerical approach for predicting the development and locating the Laminar Separation Bubble (LSB) on low Reynolds airfoils. The method is a linearized and segregated variation of the Variational Multi-Scale method (LS-VMS). The aim is to demonstrate the validity of this new method, overcoming the need for calibration based on experiments and/or custom-fitting transition functions. It has been tested on the SD7003 airfoil at Re = 60000, obtaining results aligned with previously published experimental and numerical results. Furthermore, it has been tested for the DU89-134 profile, a high lift-to-drag ratio airfoil used for high-altitude pseudo-satellite applications. For this geometry, various configurations (AoA = 5°, Re =250000, 500000) compatible with low stratospheric flight have been examined and compared with RANS simulations coupled with transitional models showing close agreement.
U2 - 10.2514/6.2024-4261
DO - 10.2514/6.2024-4261
M3 - Conference contribution
BT - AIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2024
ER -