Experimental Aerothermal Study on Internal Jet Engine Structures
Licentiate thesis, 2020
This thesis summarises instrumentation implemented methods in the Turbine Rear Structure(TRS). For the multi-hole probe and heat transfer measurement via IR-thermography a comprehensive uncertainty analysis and error mitigations are presented.
The work presents a relatively high accuracy of 4% to 6% for the performed heat transfer studies on the outlet guide vane in the TRS. The presented implementation of the multi-hole probe in the TRS provides up to twice as high accuracy compared to conventional installation. Both approaches are general with few geometrical limitations and can be implemented on studies with similar ambient conditions.
Two different Reynolds numbers, several flow-coefficients and three different surface roughness numbers have been investigated and novel results regarding transition location, streamline, heat transfer and loss distribution are presented in the attached papers.
Intermediate Compressor Duct
Turbine Rear Structure
Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics
EFFECT OF SURFACE ROUGHNESS ON AERODYNAMIC PERFORMANCE OF TURBINE REAR STRUCTURE
PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, 2019, VOL 1,; (2019)
Paper in proceedings
Surface roughness impact on secondary flow and losses in a turbine exhaust casing
Proceedings of the ASME Turbo Expo,; Vol. 2B-2018(2018)
Paper in proceedings
Jonsson I., Chernoray v., Dhanasegaran R., Infrared Thermography Investigation of Heat Transfer on Outlet Guide Vanes in a Engine Exit Module
Jonsson I., Deshpande S., Chernoray V., Thulin O., Larsson J., Numerical and Experimental Study off Transition in an Engine Exit Module
Fluid Mechanics and Acoustics
Chalmers Laboratory of Fluids and Thermal Sciences
Thesis for the degree of Licentiate – Department of Mechanics and Maritime Sciences: 2020:12
Chalmers University of Technology
The dissertation can be accessed through Zoom, and the room will open shortly before 13:00. In case there will be any updates about the event, these will be posted on this website.
Opponent: Carlos Arroyo