Heat transfer in pulsating flow and its impact on temperature distribution and damping performance of resonators (A03)

• Subject Area: Fluid Mechanics ; Technical Thermodynamics
• Term: from 2008 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 26293245

This TP aims to develop methods for the precise prediction of the damping performance for acoustic resonators, with due consideration of temperature inhomogeneities and nonlinear effects. In FP3, the transient temperature distribution in resonators will determined by means of LES. In these simulations, the turbulent flow conditions within the combustion chamber and the conjugate heat transfer at the wall will be taken into account. Acoustic oscillation in the chamber and the resonator can enhance the axial heat transfer signifi-cantly. With the knowledge of the temperature profile in the resonator, its influence on the damping perfor-mance will be analyzed in a quantitative manner.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 40: Technological Foundations for the Design of Thermally and Mechanically Highly Loaded Components of Future Space Transportation Systems
• Applicant Institution: Technische Universität München (TUM)
• Project Head: Professor Wolfgang Polifke, Ph.D.