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RISExperimental Analysis of a Particle Separator Design With Full-Field Three-Dimensional Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Particle ingestion into turbine engines can cause significant damage through deposition in internal cooling passages. Musgrove et al. proposed a compact particle separator installed between the combustor bypass exit and ...
The Effect of Land Taper Angle on Trailing Edge Slot Film Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Trailing edge slot film cooling is a widely used method of protecting the thin trailing edge of turbine blades from hot gas impingement. The structures that separate the slots, known as “lands,†come in a variety of ...
Film Cooling Effectiveness Improvements Using a Nondiffusing Oval Hole
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The need for improvements in film cooling effectiveness over traditional cylindrical film cooling holes has led to varied shaped hole and sister hole designs of increasing complexity. This paper presents a simpler shaped ...
Flow Separation Control in an Annular to Conical Diffuser Using Two Dimensional and Three Dimensional Wall Steps
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Conical diffusers are often installed downstream of a turbomachine with a central hub. Previous studies showed that nonstreamlined hubs had extended separated wakes that reduced the adverse pressure gradient in the diffuser. ...
Optimal Turbulent Schmidt Number for RANS Modeling of Trailing Edge Slot Film Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: It has been previously demonstrated that Reynoldsaveraged Navier–Stokes (RANS) simulations do not accurately capture the mixing between the coolant flow and the main flow in trailing edge slot film cooling configurations. ...
Three Dimensional Velocity and Scalar Field Measurements of an Airfoil Trailing Edge With Slot Film Cooling: The Effect of an Internal Structure in the Slot
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Measurements of the 3D velocity and concentration fields were obtained using magnetic resonance imaging for a pressureside cutback film cooling experiment. The cutback geometry consisted of rectangular slots separated by ...
Experimental Study of Periodic Free Stream Unsteadiness Effects on Discrete Hole Film Cooling in Two Geometries
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Discrete hole film cooling is widely employed to protect turbine blades and vanes from hot combustion gases entering the high-pressure turbine stage. Accurate prediction of the heat transfer near film cooling holes is ...
Three-Dimensional Velocity and Temperature Field Measurements of Internal and External Turbine Blade Features Using Magnetic Resonance Thermometry
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Magnetic resonance thermometry (MRT) is a maturing diagnostic tool used to measure three-dimensional temperature fields. It has a great potential for investigating fluid flows within complex geometries leveraging medical ...
Experimental Study of Flow Inside a Centrifugal Fan Using Magnetic Resonance Velocimetry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Three-dimensional (3D), three-component time-averaged velocity fields have been measured within a low-speed centrifugal fan with forward curved (FC) blades. The model investigated is representative of fans commonly used ...