Infrared Thermography Investigation of Heat Transfer on Outlet Guide Vanes in a Turbine Rear Structure
Artikel i vetenskaplig tidskrift, 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.

IR thermography

turbine rear frame

tail bearing housing

experimental heat transfer

turbine rear structure

low-pressure turbine

turbine exhaust casing

engine exit structure


Isak Jonsson

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Valery Chernoray

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Radheesh Dhanasegaran

Lappeenrannan-Lahden teknillinen yliopisto (LUT)

International Journal of Turbomachinery, Propulsion and Power

2504-186X (ISSN)

Vol. 5 3 23

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