Schmitt, S.DLR Deutsches Zentrum fuer Luft- und Rau...
An aerodynamic prediction method for turbomachinery flows is extended to an aeroelastic simulation system. The aerodynamic method is first adapted to allow the prediction of flow unsteadiness caused by vibrating blade rows. A fluid-structure coupling module, including a modal model for the structural dynamics, is then incorporated to enable the dir...
Weyer, H.B.Zachcial, A.DLR Deutsches Zentrum fuer Luft- und Rau...
During the last decade, combined-cycle power stations gained ground as an economically efficient and environment-friendly thermal process. With increasing optimization, efficiencies of more than 60 percent are expected for the near future. The focus is on the gas turbine as it is providing base load power as well as peak load power. Fossil fuels ar...
Schneider, M.Carolus, T.univ., siegenForschungsvereinigung fuer Luft- und Tro...
A computer program for predicting the wide-band noise spectrom of axial blower rotors from flow field variables was developed. First, a bibliographic search was carried out on current methods of noise prediction. The main input parameters of the selected methods were varied systematically in the sense of a sensitivity analysis in order to check the...