Abstract: An empirical riblet model for manufactured V-shaped and trapezoidal riblets which is suitable for turbomachinery application is presented. The implementation of the riblet effect employs a correlation-based correction for ...

Abstract: The current design of lowpressure turbines (LPTs) with steadyblowing vortex generating jets (VGJs) uses steady computational fluid dynamics (CFD). The present work aims to support this design approach by proposing a new ...

Abstract: Exhaust diffusers significantly enhance the available power output and efficiency of gas and steam turbines by allowing lower turbine exit pressures. The residual dynamic pressure of the turbine outflow is converted into ...

Abstract: Steady blowing vortex generating jets (VGJ) on highlyloaded lowpressure turbine profiles have shown to be a promising way to decrease total pressure losses at low Reynoldsnumbers by reducing laminar separation. In the ...

Abstract: A novel theoretical model of the internal flow field in multistage axial compressors based on an eigenvalue approach is developed, in order to predict the onset of acoustic resonance in aircraft engines. Using an example ...

Abstract: The state-of-the-art design of turbomachinery components is based on Reynolds-averaged Navier–Stokes (RANS) solutions. RANS solvers model the effects of turbulence and boundary layer transition and therefore allow for a ...