Search
CSV
RISDirect Numerical Simulation of Transitional and Turbulent Flows Over Multi-Scale Surface Roughness—Part II: The Effect of Roughness on the Performance of a High-Pressure Turbine Blade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbine blades generally present surface roughness introduced in the manufacturing process or caused by in-service degradation, which can have a significant impact on aero-thermal performance. A better understanding of the ...
Effects of Localized Non-Gaussian Roughness on High-Pressure Turbine Aerothermal Performance: Convective Heat Transfer, Skin Friction, and the Reynolds’ Analogy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Compressible direct numerical simulations are conducted to investigate how surface roughness affects the aerothermal performance of a high-pressure turbine vane operating at an exit Reynolds number of 0.59 ×106 and exit ...
Direct Numerical Simulation of Transitional and Turbulent Flows Over Multi-Scale Surface Roughness—Part I: Methodology and Challenges
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High-fidelity simulation of transitional and turbulent flows over multi-scale surface roughness presents several challenges. For instance, the complex and irregular geometrical nature of surface roughness makes it impractical ...