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RISAero-Structural Coupling Strategy for a Morphing Blade Cascade Study
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The coupling of aerodynamics and structural mechanics is an important step in the design process of aeronautical devices with morphing parts. In this article, a 2D–3D coupling approach is developed to study a morphing blade ...
Effects of Vortex Generator Application on the Performance of a Compressor Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The performance of a compressor cascade is considerably influenced by secondary flow effects, like the cross flow on the end wall as well as the corner separation between the wall and the vane. An extensive experimental ...
The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade—Part I: Measurements With Time-Resolved Particle Image Velocimetry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the first part of this three-paper-series, time-resolved particle image velocimetry (TR-PIV) is performed in the transonic cascade to elucidate the shock-boundary layer interaction process and to provide comparative ...
The Unsteady Shock-Boundary Layer Interaction in a Compressor Cascade—Part III: Mechanisms of Shock Oscillation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The shock-boundary layer interaction in transonic flows is known to cause strong unsteady flow effects that negatively affect the performance and operability of blade and cascade designs. Despite decades of research on the ...
The Unsteady Shock–Boundary Layer Interaction in a Compressor Cascade—Part II: High-Fidelity Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the second part of this three-paper series, high-fidelity simulations of the transonic cascade TEAMAero at the aerodynamic design point with Rein=1.35×106 and Main=1.21 are presented. A high-order discontinuous Galerkin ...
A Numerical Test Rig for Turbomachinery Flows Based on Large Eddy Simulations With a High-Order Discontinuous Galerkin Scheme—Part II: Shock Capturing and Transonic Flows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the second paper of this three-part series, we focus on the simulation of transonic test cases for turbomachinery applications using a high-order discontinuous Galerkin spectral element method (DGSEM). High-fidelity ...
Reynolds Number Effect on Transitional Delayed Detached-Eddy Simulation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. The accurate prediction of a wide range of operating conditions is desired by numerical methods. In particular, off-design conditions are a major challenge for steady Reynolds-averaged Navier–Stokes (RANS) methods. ...
Highly Aggressive Intercompressor Duct With Active Flow Control: Numerical Validation of Pulsed Jet Actuators With Unsteady Simulations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. The application of active flow control (AFC) methods in an intercompressor duct (ICD) offers the possibility of further length reduction while suppressing separations. In particular, pulsed jet actuators (PJAs) ...
The Effect of an Eroded Leading Edge on the Aerodynamic Performance of a Transonic Fan Blade Cascade
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Especially at transonic flow conditions the leading edge shape influences the performance of a fan profile. At the same time the leading edge of a fan profile is highly affected by erosion during operation. This erosion ...
Riblet Application in Compressors: Toward Efficient Blade Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Nowadays, modern axial compressors have already reached a very high level of development. The current study is focused on the question, if the application of riblets on the surfaces of a highly efficient modern compressor ...