TY - GEN
T1 - Experimental investigation of engine bypass flow behavior in the presence of surface heat exchangers
AU - Villafãne, Laura
AU - Paniagua, Guillermo
N1 - Publisher Copyright:
Copyright © 2014 by ASME.
PY - 2014
Y1 - 2014
N2 - Ongoing engine developments require advanced thermal management technologies to handle the increasing demand of refrigeration and lubrication. As the thermal capacity of the oil lubricant and coolant circuits becomes saturated, cooling sources in addition to the conventional fuel based oil cooling systems are essential for the engine operation. This research is focused in the experimental investigation of the turbofan bypass flow behavior in the presence of finned heat exchangers oriented with the mean flow direction. Engine testing methods alternative to flight testing were developed for this purpose. A new test facility reproducing the engine bypass flow at cruise velocities and take off atmospheric conditions was built to study the flow phenomena. Different measurement techniques were adapted to the requirements of the flow and wind tunnel characteristics. Particular attention was dedicated to the development of a multi-hole probe and a data reduction methodology providing accurate results in a wide angular range at transonic conditions. The flow development along the bypass channel flow was characterized in the presence of different heat exchanger geometries, and compared to the flow development in the absence of heat exchangers.
AB - Ongoing engine developments require advanced thermal management technologies to handle the increasing demand of refrigeration and lubrication. As the thermal capacity of the oil lubricant and coolant circuits becomes saturated, cooling sources in addition to the conventional fuel based oil cooling systems are essential for the engine operation. This research is focused in the experimental investigation of the turbofan bypass flow behavior in the presence of finned heat exchangers oriented with the mean flow direction. Engine testing methods alternative to flight testing were developed for this purpose. A new test facility reproducing the engine bypass flow at cruise velocities and take off atmospheric conditions was built to study the flow phenomena. Different measurement techniques were adapted to the requirements of the flow and wind tunnel characteristics. Particular attention was dedicated to the development of a multi-hole probe and a data reduction methodology providing accurate results in a wide angular range at transonic conditions. The flow development along the bypass channel flow was characterized in the presence of different heat exchanger geometries, and compared to the flow development in the absence of heat exchangers.
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U2 - 10.1115/FEDSM2014-21580
DO - 10.1115/FEDSM2014-21580
M3 - Conference contribution
AN - SCOPUS:84919798057
T3 - American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
BT - Symposia
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2014, Collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels
Y2 - 3 August 2014 through 7 August 2014
ER -