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Assessing CFD modeling of entropy generation for the air frame subsystem in an integrated aircraft design/synthesis procedure

  • Kehinde Alabi
  • , Foluso Ladeinde
  • , Mike Von Spakovsky
  • , David Moorhouse
  • , Jose Camberos
  • Thaerocomp Technical Corporation
  • AIAA
  • Virginia Polytechnic Institute and State University
  • Center for Energy Systems Research
  • Air Force Research Laboratory
  • Multidisciplinary Technologies Center

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Scopus citations

Abstract

This paper presents the CFD modeling of entropy generation of the Air Frame Subsystem as a component of integrated aircraft design/synthesis. Entropy calculation procedures for complicated geometries in curvilinear coordinates are described, including the effects of turbulence. Both inviscid and viscous calculations are reported and the contributions of the various terms in the entropy equation are investigated. The procedure is validated and then extended to the calculation of entropy generation associated with flow over the B747-200 aircraft. Results show that most of the entropy generation is due to turbulence. The viscous dissipation term in the entropy equation dominates compared to the heat transfer term. The implications of the results for design improvement are briefly discussed.

Original languageEnglish
Title of host publicationCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Pages7036-7054
Number of pages19
StatePublished - 2006
Event44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
Duration: Jan 9 2006Jan 12 2006

Publication series

NameCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Volume10

Conference

Conference44th AIAA Aerospace Sciences Meeting 2006
Country/TerritoryUnited States
CityReno, NV
Period01/9/0601/12/06

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