Low reynolds number airfoil design for a mars exploration airplane using a transition model

Jongho Jung, Kwanjung Yee, Takashi Misaka, Shinkyu Jeong

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In this study, the design optimization of a low Reynolds number airfoil is performed for a Mars exploration airplane. To achieve this goal, a multi-objective genetic algorithm (MOGA) using the Kriging model is used for optimization and a £-Reθ model is adopted to predict the laminar-turbulent transition point on the airfoil. Both PARSEC and NURBS representations are used to define the geometry of the airfoil in order to investigate its effect on the transition delay. The aerodynamic performances of the airfoils designed are compared with those of the ss1f airfoil, which was designed for the Mars exploration airplane during the ARES project. The objectives of optimization are to minimize the drag coefficient with a fixed lift coefficient and to minimize the moment sensitivity with respect to the angle of attack. Transition of the airfoil using the PARSEC representation occurs further downstream than that of the ss1f airfoil. Furthermore, the airfoil using the NURBS representation achieves fully laminar flow on the upper surface. The moment sensitivity of the optimized airfoils is also lower than that of the ss1f airfoil.

Original languageEnglish
Pages (from-to)333-340
Number of pages8
JournalTransactions of the Japan Society for Aeronautical and Space Sciences
Volume60
Issue number6
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Low Reynolds Number Airfoil
  • Mars Exploration Airplane
  • Moga
  • Transition

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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