Aerodynamic performance accounting for ultra-integrated air vehicle configurations

David K. Hall, Michael Lieu, Mark Drela

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations


In this paper, we analyze different methods for assessing aerodynamic performance of air vehicles with a high degree of propulsion-airframe integration. High-speed CFD calculations of the performance of the D8 commercial aircraft concept yield a flow field data set with which to assess the different methods. A thrust-and drag-based approach is contrasted with a power-based approach to examine the similarities, differences and advantages and disadvantages to each approach. The results show both the power-based approach and an ideally expanded momentum approach offer potential to provide useful insight into the physical mechanisms driving the aerodynamic performance of integrated concepts. Based on the analysis, we also present a procedure for accounting for the impacts of integration on vehicle system-level performance, including appropriate interactions between vehicle aerodynamic and propulsion system thermodynamic performance.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
StatePublished - 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: Jan 7 2019Jan 11 2019

Publication series

NameAIAA Scitech 2019 Forum


ConferenceAIAA Scitech Forum, 2019
Country/TerritoryUnited States
CitySan Diego

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


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