A numerical study of the effects of aerofoil shape on low reynolds number aerodynamics

H. Aono, T. Nonomura, M. Anyoji, A. Oyama, K. Fujii

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

Abstract

A numerical study of the effects of airfoil shape on low Reynolds number aerodynamics is presented. The large-eddy simulations are performed with 6 th-order compact finite difference scheme and 10th-order low pass filter, and 2nd-order backward implicit time integration with inner iterations. Systematic numerical excesses show the feasibility of the current simulations to predict flow fields around fixed-wing configurations involving a laminar separation and laminar-to-turbulence transition at low Reynolds number. At the Reynolds number of 2.3×104, two types of thin and asymmetric airfoils as a target airfoil shape of micro-size air vehicle are considered. The results show that the airfoil cross section affects the formation of a laminar separation bubble and the transition to turbulence in the three-dimensional flow around the wings at low angle of attack and hence significant influence on the aerodynamic performance.

Original languageEnglish
Title of host publicationProceedings of the 8th International Conference on Engineering Computational Technology, ECT 2012
PublisherCivil-Comp Press
Volume100
ISBN (Print)9781905088553
Publication statusPublished - Jan 1 2012
Externally publishedYes
Event8th International Conference on Engineering Computational Technology, ECT 2012 - Dubrovnik, Croatia
Duration: Sep 4 2012Sep 7 2012

Other

Other8th International Conference on Engineering Computational Technology, ECT 2012
CountryCroatia
CityDubrovnik
Period9/4/129/7/12

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Civil and Structural Engineering
  • Computational Theory and Mathematics
  • Artificial Intelligence

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    Aono, H., Nonomura, T., Anyoji, M., Oyama, A., & Fujii, K. (2012). A numerical study of the effects of aerofoil shape on low reynolds number aerodynamics. In Proceedings of the 8th International Conference on Engineering Computational Technology, ECT 2012 (Vol. 100). Civil-Comp Press.