Aircraft cabin flow pattern under unsteady air supply

Chaofan Wu, Noor A. Ahmed

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

3 Citations (Scopus)


Maintaining a suitable cabin environment for an aircraft at cruise requires constant extraction of fresh air from the engine, resulting in a loss of thrust. An effective air delivery method for ventilating the cabin will minimize such loss and thus improve the fuel economy of an aircraft. This study investigates an unsteady air supply method and finds that the flow pattern becomes transitional under periodic air supplies. This transitional feature leads to lower average temperature and CO2 concentration levels than the conventional steady supply condition with the same amount of fresh air. Unsteady air supply shows the promise in improving the fresh air delivery efficiency inside the cabin.

Original languageEnglish
Title of host publication29th AIAA Applied Aerodynamics Conference 2011
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101458
Publication statusPublished - 2011
Externally publishedYes
Event29th AIAA Applied Aerodynamics Conference 2011 - Honolulu, HI, United States
Duration: 27 Jun 201130 Jun 2011

Publication series

Name29th AIAA Applied Aerodynamics Conference 2011


Conference29th AIAA Applied Aerodynamics Conference 2011
Country/TerritoryUnited States
CityHonolulu, HI

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering


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