Lister-Symonds, Joseph E.Mutangara, Ngonidzashe E.Lamprakis, IoannisSanders, Drewan S.2025-03-192025-03-192025Lister-Symonds JE, Mutangara NE, Lamprakis I, Sanders DS. (2025) Potential for energy recovery of a nonadiabatic subsonic airfoil. Journal of Aircraft, Available online 13 February 20250021-8669https://doi.org/10.2514/1.c037894https://dspace.lib.cranfield.ac.uk/handle/1826/23616This paper investigates the effect of wall temperature and flow conditions on the potential for energy recovery of the NACA0012 airfoil. A work–energy balance has been derived from the governing equations for moving control volumes for a body in dynamic equilibrium, aerodynamically decoupled from its propulsive source. The formulation has been applied to an extensive test matrix of computational fluid dynamics cases, with steady level flight imposed and wall temperature, angle of attack, Reynolds number, and Mach number varied independently. The decomposition of the wake energy shows explicitly that the near-field work of the body manifests as global energy constituents, viscous dissipation, and baroclinic work. The analysis identifies the conditions and underlying mechanisms that minimize and maximize the potential for energy recovery, revealing that there are synergistic opportunities for tightly coupled airframe and propulsor configurations with waste heat to reject.pp. xx-xxenAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/Energy RecoveryComputational Fluid DynamicsAerodynamic PerformanceAirframe/Propulsion IntegrationBoundary Layer IngestionAerodynamic ForceBoundary Layer Heat TransferNACA AirfoilViscous DissipationTurbulent Flow4012 Fluid Mechanics and Thermal Engineering40 Engineering4001 Aerospace Engineering7 Affordable and Clean EnergyAerospace & AeronauticsArticle1533-3868564676ahead-of-printahead-of-print