TY - JOUR
T1 - Turbine blade boundary layer separation suppression via synthetic jet: An experimental and numerical study.
AU - Bernardini, Chiara
AU - Carnevale, Mauro
AU - Manna, Marcello
AU - Martelli, Francesco
AU - Simoni, Daniele
AU - Zunino, Pietro
PY - 2012/10/1
Y1 - 2012/10/1
N2 - The present paper focuses on the analysis of a synthetic jet device (with a zero net massflow rate) on a separated boundary layer. Separation has been obtained on a flat plate installed within a converging-diverging test section specifically designed to attain a local velocity distribution typical of a high-lift LPT blade. Both experimental and numerical investigations have been carried out. Unsteady RANS results have been compared with experiments in terms of time-averaged velocity and turbulence intensity distributions. Two different Reynolds number cases have been investigated, namely Re = 200, 000 and Re = 70, 000, which characterize low-pressure turbine operating conditions during take-off/landing and cruise. A range of synthetic jet aerodynamic parameters (Strouhal number and blowing ratio) has been tested in order to analyze the features of control — separated boundary layer interaction for the aforementioned Reynolds numbers.
AB - The present paper focuses on the analysis of a synthetic jet device (with a zero net massflow rate) on a separated boundary layer. Separation has been obtained on a flat plate installed within a converging-diverging test section specifically designed to attain a local velocity distribution typical of a high-lift LPT blade. Both experimental and numerical investigations have been carried out. Unsteady RANS results have been compared with experiments in terms of time-averaged velocity and turbulence intensity distributions. Two different Reynolds number cases have been investigated, namely Re = 200, 000 and Re = 70, 000, which characterize low-pressure turbine operating conditions during take-off/landing and cruise. A range of synthetic jet aerodynamic parameters (Strouhal number and blowing ratio) has been tested in order to analyze the features of control — separated boundary layer interaction for the aforementioned Reynolds numbers.
U2 - 10.1007/s11630-012-0561-2
DO - 10.1007/s11630-012-0561-2
M3 - Article
SN - 1993-033X
VL - 21
SP - 404
EP - 412
JO - Journal of Thermal Science
JF - Journal of Thermal Science
ER -