Stefanie Lohse, M.Sc.
30823 Garbsen
Main Focus
- Research group: Aeroacoustics / Aeroelasticity and Wind Energy
- Aeroacoustic Scaling
Research Projects
Aeroacoustic scaling of turbine blade rows
To enable a more detailed experimental investigation of sound propagation in turbines, test rigs with acoustically optimized boundary conditions are necessary. For this purpose, the Institute of Turbomachinery and Fluid Dynamics operates an Aeroacoustic Wind Tunnel (AWT) to excite synthetic sound fields and investigate sound pressure levels within conditions corresponding to those of real machines. In particular, when local effects - such as sound propagation through individual blade rows - are of interest for the global behavior of a turbine, a turbine test rig is not suitable for precise aeroacoustic measurements due to sound reflections within the test rig. Consequently, the blade rows have to be scaled for an installation in the AWT and aeroacoustic similarity between the test rigs has to be established.
Curriculum Vitae
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Work Experience
- 2014
Internship: Miele & Cie. KG, Gütersloh. 2014
- 2016
Internship: Paul Hettich GmbH & Co., Kirchlenger
- 2017
Internship: MTU Maintenance Hannover GmbH, Langenhagen
- 2017
Student Assistant: Institute of Measurement and Automatic Control, Leibniz University Hanover
- 2018
Working Student: MTU Maintenance Hannover GmbH, Langenhagen
- 2020
Research Assistant: Institute of Turbomachinery and Fluid Dynamics, Leibniz University Hanover
- 2021
Short Training Programme: von Karman Institute for Fluid Dynamics, Sint-Genesius-Rode, Belgien
- 2021-present
Research Assistant: Institute of Turbomachinery and Fluid Dynamics
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Studies
- 2014 – 2020
Mechanical Engineering (B.Sc. und M.Sc.): Leibniz University Hanover
- 2017
Bachelor Thesis: “Microplasma buildup welding to repair cobalt-based alloy combustion chamber components” at MTU Maintenance Hannover GmbH in cooperation with the Institute for Material Science
- 2019
Project thesis: “Numerical calculation of the acoustic transmission behavior of a turbine stage using harmonic balance method” at the Institute of Turbomachinery and Fluid Dynamics
- 2020
Master Thesis: “Aeroacoustic scaling of a compressor blade row for the Aeroacoustic Wind Tunnel” at the Institute of Turbomachinery and Fluid Dynamics in cooperation with Université de Sherbrooke, Canada