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Computational Evaluation of an OML-based Heat Exchanger Concept for HEATheRFeasibility of outer mold line (OML) heat exchangers for electrified aircraft is computationally explored for three different aircraft concepts within The High-efficiency Electrified Aircraft Thermal Research (HEATheR) project. OML surface temperature limits were selected based on aluminum-alloy and carbon-fiber composite materials commonly used in transport aircraft. Heat flux distribution over the aircraft OML at the surface temperature limit was evaluated with computational fluid dynamics (CFD) analysis. The candidate OML locations and the size for the implementation of the OML-based heat exchanger is down-selected using this initial analysis and other considerations including the concern for structural integrity and proximity to heat-generating electrical components. The sensitivity of the heat transfer analysis to the computational grid, aircraft angle of attack, surface temperature, and the interaction of individual OML heat exchanger patches were investigated.
Document ID
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Emre Sozer
(Ames Research Center Mountain View, California, United States)
Daniel Maldonado
(Science and Technology Corporation (United States) Hampton, Virginia, United States)
Keerti K Bhamidipati
(Armstrong Flight Research Center Rosamond, California, United States)
Sydney L. Schnulo
(Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
July 31, 2020
Subject Category
Fluid Mechanics And Thermodynamics
Meeting Information
Meeting: AIAA/IEEE Electric Aircraft Technologies Symposium (EATS)
Location: Online
Country: US
Start Date: August 26, 2020
End Date: August 28, 2020
Sponsors: American Institute of Aeronautics and Astronautics, Institute of Electrical and Electronics Engineers
Funding Number(s)
WBS: 533127.
Distribution Limits
Public Use Permitted.
Technical Review
NASA Peer Committee
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