Abstract: At low mass flow rates, axial compressors suffer from flow instabilities leading to stall and surge. The inception process of these instabilities has been widely researched in the pastprimarily with the aim of predicting ...

Abstract: Turbine design engineers have to ensure that film cooling can provide sufficient protection to turbine blades from the hot mainstream gas, while keeping the losses low. Film cooling hole design parameters include inclination ...

Abstract: Low aspect ratio vanes, often the result of overall engine architecture constraints, create strong secondary flows and high end-wall loss. In this paper, a splitter concept is demonstrated that reduces secondary flow ...

Abstract: Intermediate pressure (IP) turbines in high bypass ratio civil aeroengines are characterized by a significant increase in radius and a low aspect ratio stator. Conventional aerodynamic designs for the IP turbine stator ...

Abstract: The entropy generation within a turbulent, collateral boundary layer is well understood and is characterized by a dissipation coefficient, Cd. However, it is common for the transverse pressure gradients in turbomachines ...