Three-dimensional wing design towards the future mars airplane

Ryoji Kojima, Donghi Lee, Tomoaki Tatsukawa, Taku Nonomura, Akira Oyama, Kozo Fujii

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


The effects of aspect ratio and Reynolds number on aerodynamic characteristics of three-dimensional rectangular wing at low Reynolds number of 103 to 105, are investigated with Reynolds-averaged Navier-Stokes solver with the Baldwin-Lomax model. Present results show that lift coefficient decreases drastically at lower aspect ratio than 4. Besides, the much larger viscous drag coefficient is obtained at the lower Reynolds number, especially lower than 104. In order to focus on designing practical wings, the particular cases under the condition of fixed wing-surface area and fixed main stream velocity are conducted. The results show that there is trade-off between the decrease in viscous drag coefficient with increasing Reynolds number and the increase in lift coefficient with increasing aspect ratio. At the lower Reynolds number condition, as the former effect is stronger than the latter one, maximum lift-to-drag ratio is obtained at lower aspect ratio.

Original languageEnglish
Title of host publicationASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
Number of pages8
EditionPARTS A, B, C, D
Publication statusPublished - 2011 Dec 1
Externally publishedYes
EventASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011 - Hamamatsu, Japan
Duration: 2011 Jul 242011 Jul 29

Publication series

NameASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011
NumberPARTS A, B, C, D


OtherASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes


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