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RISExperimental and Numerical Investigations on the Heat Transfer of Film Cooling With Cylindrical Holes Fed With Internal Coolant Cross Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The heat transfer coefficient of cylindrical holes fed by varying internal cross-flow channels with different cross-flow Reynolds numbers Rec is experimentally studied on a low-speed flat-plate facility. Three coolant cross ...
Experimental Study on the Film-Cooling Characteristics of the Cylindrical Holes Embedded in Sine-Wave Shaped Trench
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental investigation has been performed to study the film-cooling performance of the cylindrical holes embedded in the sine-wave-shaped-trench. The sine-wave-shaped-trench is obtained by changing the trailing edge ...
Experimental Study of Outflow Effects in a Rotating Turbulated Channel
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The three-pass turbulated serpentine channel has many applications in internal turbine blade systems. However, the studies on the effects of the outflow ratio are lacking, which decreases the thermal analysis accuracy in ...
Experimental Study on Film Cooling Effectiveness of Blade With Chevron-Shaped Holes Under Wake Influence
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gas turbines have been widely used. With the continuous improvement of the performance of gas turbines, the turbine inlet temperature has greatly exceeded the heat-resistance limit of the turbine blade material, so advanced ...
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 ...
Study on Effects of Spanwise-Expansion Parameters on Film Cooling Effectiveness of Diffusion Shaped Hole Configurations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Diffusion shaped holes are widely used on aero-engine turbine blades for film cooling. The effect of the spanwise-expansion angle and spanwise width of the hole exit on the film cooling effectiveness of diffusion shaped ...
Superposition Effect of the Leading Edge Film on the Downstream Film Cooling of a Turbine Vane Under Combustor Swirling Outflow
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To investigate the superposition effect of the leading edge (LE) film on the downstream film cooling under swirling inflow, numerical simulations with three vane models (vane with films on the leading edge only, vane with ...
Numerical and Experimental Study on the Heat Flux of Double-Wave Trench
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The film cooling characteristics of the transverse trench (TT) and the double-wave trench (DWT) were numerically studied by using Reynolds-averaged Navier–Stokes simulations with realizable k–ɛ turbulence model and enhanced ...
Experimental Study on Heat Transfer of Leading Edge Film-Cooling With Counter-Inclined Cylindrical and Laid-Back Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The heat transfer coefficient of counterinclined film holes fed by different intake structures on the turbine vane leading edge (LE) model is experimentally investigated in this paper. A semicylinder model is adopted to ...