Experimental Aerothermal Study on Internal Jet Engine Structures
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, Mekanik och maritima vetenskaper, Strömningslära
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 i proceeding
Surface roughness impact on secondary flow and losses in a turbine exhaust casing
Proceedings of the ASME Turbo Expo,; Vol. 2B-2018(2018)
Paper i proceeding
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
Rymd- och flygteknik
Strömningsmekanik och akustik
Thesis for the degree of Licentiate – Department of Mechanics and Maritime Sciences: 2020:12
Chalmers tekniska högskola
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