Infrared Thermography Investigation of Heat Transfer on Outlet Guide Vanes in a Turbine Rear Structure
Journal article, 2020

Aerothermal heat transfer measurements in fluid dynamics have a relatively high acceptance of uncertainty due to the intricate nature of the experiments. The large velocity and pressure gradients present in turbomachinery application add further complexity to the measurement procedure. Recent method and manufacturing development has addressed some of the primary sources of uncertainty in these heat transfer measurements. However, new methods have so far not been applied in a holistic approach for heat transfer studies. This gap is bridged in the present study where a cost-effective and highly accurate method for heat transfer measurements is implemented, utilising infrared thermography technique (IRT) for surface temperature measurement. Novel heat transfer results are obtained for the turbine rear sturcture (TRS), at engine representative conditions for three different outlet guide vane (OGV) blade loading and at Reynolds Number of 235000. In addition to that, an extensive description of the implementation and error mitigation is presented.

turbine rear frame

experimental heat transfer

engine exit structure

turbine rear structure

IR thermography

tail bearing housing

low-pressure turbine

turbine exhaust casing


Isak Jonsson

Chalmers, Mechanics and Maritime Sciences (M2), Fluid Dynamics

Valery Chernoray

Chalmers, Mechanics and Maritime Sciences (M2), Fluid Dynamics

Radheesh Dhanasegaran

Lappeenranta-Lahti University of Technology (LUT)

International Journal of Turbomachinery, Propulsion and Power

2504186X (eISSN)

Vol. 5 3 23

Experimental Aero- and Thermal investigation for a next generation Engine Exit Module (EATEEM)

European Commission (EC) (EC/H2020/821398), 2018-10-01 -- 2021-03-31.

AeroThermals for Enhanced Engine Exit (AT3E)

VINNOVA (2023-01203), 2023-07-01 -- 2024-06-30.

VINNOVA (2017-04861), 2017-11-10 -- 2022-06-30.

Enabling cryogenic hydrogen-based CO2-free air transport (ENABLEH2)

European Commission (EC) (EC/H2020/769241), 2018-09-01 -- 2021-08-31.

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance



Subject Categories

Aerospace Engineering

Fluid Mechanics and Acoustics


Basic sciences


Chalmers Laboratory of Fluids and Thermal Sciences



More information

Latest update

1/3/2024 9