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RISOptimal Riblets Applied to Gas Turbine Compressor Blades Studied via Direct Numerical Simulation (GT2024–122305)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Streamwise micro-groove surfaces (“riblets”) are well known as a passive surface treatment to reduce drag, which may assist in increasing overall gas turbine efficiency. The first direct numerical simulation of micro-scaled ...
Loss Prediction in an Axial Compressor Cascade at Off-Design Incidences With Free Stream Disturbances Using Large Eddy Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Axial compressors may be operated under off-design incidences due to variable operating conditions. Therefore, a successful design requires accurate performance and stability limits predictions under a wide operating range. ...
Loss Analysis of Unsteady Turbomachinery Flows Based on the Mechanical Work Potential
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Loss analysis is a valuable technique for improving the thermodynamic performance of turbomachines. Analyzing loss in terms of the “mechanical work potential” (Miller, R.J., ASME Turbo Expo 2013, GT2013-95488) provides an ...