Offene Abschlussarbeiten
Meshfreie Simulation von Überflutungen nach Starkregenereignissen mit Open-Source-Software
Mesh-free simulation of flooding following heavy rainfall using open-source software.
2025/09/02
Weiterentwicklung einer modularen Simulationsumgebung für Luftfederdämpfer
Further development of a modular simulation environment for air spring dampers
2025/09/02
Experimentelle Untersuchung von Pumpenverschleiß in partikelbeladenen Medien
Experimental analysis of pump wear in particle laden fluids
2025/09/02
Determination of Damping and Inertia Characteristics in Narrow Annular Gaps Using Dynamic CFD Simulations
Bestimmung der Dämpfungs- und Trägheitseigenschaften in engen Ringspalten mittels dynamischer CFD Simulationen
2025/08/13
Masterthesis, Bachelorthesis
In modern turbomachinery, shaft vibrations caused by fluid film forces and moments in annular seals often limit performance and reliability. Consequently, this narrow fluid filled annuli play a crucial role in the overall system behavior. The dynamic characteristics of such narrow gaps like journal bearings and annular seals significantly influence the turbomachinery’s response. These characteristics are commonly represented by classical mechanical components springs, dampers, and masses which enable their characterization through the rotordynamic coefficients of stiffness, damping, and inertia. While the stiffness coefficients have been determined through a completed static CFD analysis utilizing a fully developed 360° mesh with eccentricity and tilt, the remaining task is to determine the damping and inertia coefficients.
Supervisor: Naveen Billur Mohan, M.Sc.
Statistische Methoden der Zeitreihenanalyse für resiliente Wasserversorgungssysteme
Statistical Methods of Time Series Analysis for Resilient Water Distribution Systems
2025/08/06
Aufbau eines Frameworks zur Berechnung der Eigenschaften beliebiger Kombinationen aus durchströmten radialen und axialen Ringspalten
Development of a framework for the calculation of the characteristics of arbitrary combinations of radial and axial annular gaps
2025/07/18
Masterthesis, Bachelorthesis
The dynamic behaviour of modern turbomachinery, such as those used in fuel pumps in the aerospace industry (for example in the Ariane 6 launch vehicle), is largely determined by the dynamic properties of combined axial and radial annular gaps. To date, however, such combined gaps have only been designed separately. For this reason, a framework is to be created at the FST on the basis of various preliminary works, which combines the existing tools at the institute for the calculation of purely axial and purely radial annular gaps into a single calculation tool for the investigation of any combined annular gaps.
Supervisor: Dr.-Ing. Maximilian Kuhr
Investigation of annular gaps, operated in the transition regime between laminar and turbulent flow using DNS Simulations
Untersuchung von Ringspalten, betrieben im Übergangsbereich zwischen laminarer und turbulenter Strömung, mittels DNS-Simulationen
2025/07/18
Masterthesis
The dynamic behaviour of modern turbomachinery, such as fuel pumps used in the aerospace industry (e.g. in the Ariane 6 launch vehicle), is largely determined by the dynamic properties of annular gaps. The flow within these gaps is either laminar, transient or turbulent. While the characteristics of these gaps in the asymptotic cases (i.e. purely laminar or purely turbulent flow) are well understood, recent experimental studies reveal a severe lack of understanding of their characteristics within the transition regime. As detection of the flow regime during experiments relies solely on integral values, modern numerical methods such as DNS simulations must be employed to further investigate the observed phenomena, e.g. the decrease in fluid film stiffness.
Supervisors: Dr.-Ing. Maximilian Kuhr, Dr.-Ing. Tomislav Maric
Inbetriebnahme und Kalibrierung des Slip Length Tribometers (SLT) zur Untersuchung des Einflusses der Oberflächenrauheit auf den Wandgleiten
Commissioning and calibration of the slip length tribometer (SLT) to investigate the influence of surface roughness on wall slip
2025/07/18
Masterthesis, Bachelorthesis, Advanced Design Project (ADP)
The aim of the student project is to calibrate the slip length tribometer for measuring slip lengths on surfaces with varying roughness. The student will become familiar with the SLT system, including its operation and measurement procedures. The core tasks include setting up the calibration device, developing and implementing a calibration routine (e.g., using LabView), and performing slip length measurements with upper plates of three different surface roughness levels.
Supervisor: Zhengzhong Gao, M.Sc.
Inbetriebnahme des Prüfstands zur Untersuchung von Partikelverschleiß
Commissioning of a test rig for the analysis of particle wear
2025/03/06
Automatisierung des Prüfstands zur Untersuchung von Partikelverschleiß
Automation of a test rig for the analysis of particle wear
2025/03/06
