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Adaptive and Model Based Control Theory Applied to Convectively Unstable Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Research on active control for the delay of laminar–turbulent transition in boundary layers has made a significant progress in the last two decades, but the employed strategies have been many and dispersed. Using one ...
Free-Stream Turbulence-Induced Boundary-Layer Transition in Low-Pressure Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aerodynamic efficiency of turbomachinery blades is profoundly affected by the occurrence of laminar-turbulent transition in the boundary layer since skin friction and losses rise for the turbulent state. Depending on ...
Effects of Upstream Wakes on the Boundary Layer Over a Low-Pressure Turbine Blade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present work, the evolution of the boundary layer over a low-pressure turbine blade is studied using direct numerical simulations, with the aim of investigating the unsteady flow field induced by the rotor-stator ...