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RISFree-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 ...
Numerical and Experimental Analysis of the Tip Leakage Flow in a Squealer Low-Pressure Turbine Blade for Different Operating Conditions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This study combines experiments and numerical simulations (3D-Reynolds-averaged Navier–Stokes (RANS)) to achieve a deep understanding of the effects induced by varying key parameters affecting tip leakage flow ...
Optimization of Endwall Ridging for Enhanced Efficiency in Aggressive Turbine Vaned Ducts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This study presents a joint experimental and numerical investigation on the impact of endwall ridging on the efficiency of a turbine nozzle guide vane (NGV). Experiments are conducted on a large-scale, low aspect ...