Available Thesis Topics

Wake characteristics of a wind farm – Numerical simulations

Background: The effectiveness of wind farms in energy production is largely influenced by energy entrainment. In the atmosphere, the boundary layer fluctuates throughout the day, depending on factors such as temperature, terrain, and geographical location. As temperatures change during the day, the...

October 14, 2024

Flat plate boundary layer setup in wind tunnel – Experimental investigation

Background: A uniform fluid flow over a solid surface develops a boundary layer because of the viscous forces very close to the wall. Due to the instabilities present on the surface, a smooth laminar boundary layer transitions into turbulent boundary layer at sufficient enough Reynolds number. To d...

October 14, 2024

Master Thesis: Rheological Measurements of Salt-Free Polyelectrolyte Solutions

Are you ready to dive into an innovative rheology research with significant industrial implications? The LSTM invites applications for a master’s thesis focused on the rheological measurements of salt-free polyelectrolyte solutions using cutting-edge rheometers. Research Overview: This project...

October 1, 2024

Master‘s thesis: Development of a CFD simulation framework to easily replicate experiments performed in LSTM’s aeroacoustic wind-tunnel

Background: Over the past 20 years, LSTM’s aeroacoustic wind-tunnel was used to analyze the fluid dynamics and acoustics of various generic configurations, such as: Noise generated by the flow over a forward-facing step Noise generated by obstacles subject to wall-bounded flows Transmi...

September 24, 2024

Master‘s thesis: Investigation of Inflow Conditions for Aeroacoustic Applications in Nek5000

Background: An accurate inflow condition is crucial for obtaining reliable results for turbulent flows. These inflow conditions must replicate the physical behavior of the flow at a given Reynolds number. However, traditional methods for generating these inflow conditions, such as the synthetic edd...

September 3, 2024

Large-scale simulations of wall turbulence using SIMSON

Background: SIMSON is a pseudo-spectral solver of the incompressible Navier-Stokes equations which uses a velocity/vorticity formulation and a Fourier/Chebyshev representation of the fields. While the code is extremely fast thanks to its efficient numerical algorithms—around one order of magnitude f...

September 3, 2024

Abschlussarbeit Strömungsmessungen am LSTM Ölkanal

Hintergrund: Für alle laseroptischen Messverfahren ergeben sich Schwierigkeiten bei Untersuchungen in unmittelbarer Wandnähe. Bevor es zum Berühren des Messvolumens an der Wandoberfläche kommt, behindert Streulicht, das aus Reflexionen an der Wand entsteht, sinnvolle Messungen. Die Vermeidung von Li...

August 27, 2024

HiWi oder Abschlussarbeit: Untersuchung der Klangerzeugungsmechanismen in akustischen Gitarren

Hintergrund: Der Klang einer akustischen Gitarre entsteht durch das komplexe Zusammenspiel von akustischen und strukturellen Schwingungen, die durch Saitenspannung, Saitenschwingungen, die Helmholtz-Resonanz und weitere Phänomene beeinflusst werden. In unseren Experimenten streben wir ein tieferes V...

August 21, 2024

Master/Project thesis: Simulations of rough boundary layers using Nek5000

Background: Turbulent boundary layers develop around all moving bodies immersed in a fluid once the Reynolds number is sufficiently high. Our understanding of the processes in these turbulent flows is already quite complete. However, as soon as the surface is rough (as is usually the case for techni...

July 30, 2024

Projekt-, Bachelor- oder Masterarbeit – Experimentelle Charakterisierung eines aeroakustischen Windkanals und Untersuchungen von Drohnen-/ Multikopterpropellern

Hintergrund: Unser Forschungsteam widmet sich der Aerodynamik und Akustik von Unbemannten Luftfahrzeugen (UAVs), speziell Multikoptern. Ziel ist es, unseren aeroakustischen Windkanal zu charakterisieren und experimentelle Untersuchungen mit Drohnenpropellern durchzuführen. Diese Untersuchungen sind ...

April 1, 2024