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An Investigation of Secondary Cooling Effect on the Endwall Surface With Vane Trailing Edge Coolant Injection
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Considering the adequate use of coolant, the secondary cooling effect of trailing edge coolant injection on the downstream endwall surface is investigated in this study. Distributions of adiabatic cooling effectiveness on ...
Wear Properties and Scuffing Resistance of the Cr–Al2O3 Coated Piston Rings: The Effect of Convexity Position on Barrel Surface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work investigates the effect of convexity position of ring barrel surface on the wear properties and scuffing resistance of the Cr–Al2O3 coated piston rings against with the CuNiCr cast iron cylinder liner. The scuffed ...
Film Cooling Performances Under Various Upstream Roughness Conditions: Experimental Investigations and Similarity Hypothesis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Roughness caused by deposition, erosion, and additive manufacturing can significantly affect gas turbine efficiency. Previous research has often examined film cooling performance under limited roughness configurations, ...
Numerical Study on Particles Deposition in the U-bend Ribbed Passage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The accumulation of particles in the internal cooling channel reduces the cooling effectiveness of the turbine blades and even affects the safe operation of the aero engine. Discrete phase-CFD simulations of particles ...
Novel Focal Sweep Strategy for Optical Aerothermal Measurements of Film-Cooled Gas Turbine Blades With Highly Inclined Viewing Angle
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The viewing angle for optical aerothermal measurements on turbine surfaces is often limited by the turbine structure, requiring the optical system to have a large depth of field (DoF). Although the DoF can be increased by ...