Wall-modeled large-eddy simulation is applied to a transonic axial compressor rotor (NASA Rotor 37). The simulation results show a significant improvement over fully turbulent RANS in the prediction of the overall performance, mainly by capturing boundary layer transition on the blade. Sensitivity of the result to the end-wall boundary conditions (isothermal/adiabatic walls) and the inflow prof...

The Axial compressor is an integrated part of a gas turbine. The central part of compressors is its blades. Blade aerodynamic has a significant effect on compressor performance. Because of the adverse pressure gradient in the compressor, any deviation in the blade profile has a significant influence on the flow field as well as the compressor performance. During the manufacturing and operation ...

This study investigates the aerodynamic and aeroelastic characteristics of a transonic axial compressor, focusing on blade count reduced rotor behavior. The analysis is based experiments, conducted at Transonic Compressor Darmstadt test rig Technical University compulsory simulations. In order to obtain measurement data for detailed investigation, extensive steady unsteady instrumentation was a...

Introduction. This paper deals with some transonic flow problems for the supersonic axial flow compressor: these arise in connection with flutter analysis for fan blading. Very detailed solutions for unsteady plane transonic flows through a cascade of flat plates have been given by Goldstein Braun and Adamczyk (1977) and Nagashima and Whitehead (1977), see also Goldstein (1975), Kurosaka (1974)...

In this paper we give insight into characteristics of a 1.5-stage transonic axial compressor rig with focus on surge during stalled operating point. The new at TU Darmstadt is representative for the front stage an industrial gas turbine. Transient throttling maneuvers were conducted multiple points first test campaign TCD 2 (Transonic Compressor 2), providing extensive set unsteady structural a...