Potential for energy recovery of unpowered configurations using power balance method computations

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dc.contributor.authorMutangara, Ngonidzashe E.
dc.contributor.authorSmith, Lelanie
dc.contributor.authorCraig, Kenneth J.
dc.contributor.authorSanders, Drewan S.
dc.date.accessioned2021-10-13T15:26:57Z
dc.date.available2021-10-13T15:26:57Z
dc.date.issued2021-07-30
dc.description.abstractNew aircraft developments are made to improve aircraft performance and efficiency. One such method is integrating propulsion into the airframe. This allows for boundary-layer ingestion, which shows promise of significant power benefits. However, these benefits are difficult to quantify as the propulsion system and aircraft body become meticulously integrated. The thrust and drag are coupled and cannot be defined separately, making conventional performance analysis methods inapplicable. The power balance method (PBM) addresses this by quantifying aircraft performance in terms of mechanical flow power and change in kinetic-energy rate. The primary focus of this work was to perform computational studies implementing the PBM on unpowered aerodynamic bodies to evaluate their respective drag contributions. A secondary study was also conducted to quantify the energy recovery potential of various bodies using a potential for energy recovery factor. The computational fluid dynamics case studies showed that drag obtained using the PBM agreed to within 2% of conventional momentum-based approaches. Maximal energy recovery potential was consistently observed at the trailing ends of the geometries, with values ranging between 9 and 12%.en_UK
dc.identifier.citationMutangara NE, Smith L, Craig KJ, Sanders DS. (2021) Potential for energy recovery of unpowered configurations using power balance method computations. Journal of Aircraft, Volume 58, Issue 6, November 2021, pp.1364-1374en_UK
dc.identifier.issn0021-8669
dc.identifier.urihttps://doi.org/10.2514/1.C036172
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/17158
dc.language.isoenen_UK
dc.publisherAIAAen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectEnergy Recoveryen_UK
dc.subjectLaminar Separation Bubbleen_UK
dc.subjectKinetic Energyen_UK
dc.subjectAircraft Configurationsen_UK
dc.subjectPropulsion Systemen_UK
dc.subjectComputational Fluid Dynamicsen_UK
dc.subjectAircraft Performanceen_UK
dc.subjectAerodynamic Characteristicsen_UK
dc.subjectNatural Laminar Flowen_UK
dc.subjectSpalart Allmaras Turbulence Modelen_UK
dc.titlePotential for energy recovery of unpowered configurations using power balance method computationsen_UK
dc.typeArticleen_UK

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