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DEVELOPMENT OF SPECIALIZED GRID GENERATION PROGRAM FOR MULTI-ELEMENT AIRFOIL AERODYNAMIC ANALYSIS

다중익형 공력 계산을 위한 특화 격자생성 프로그램 개발

  • Nam, D.W. (Dept. of Aerospace Engineering, Chungnam National Univ.) ;
  • Lee, Y.J. (Dept. of Aerospace Engineering, Chungnam National Univ.) ;
  • Lee, J.Y. (Dept. of Aerospace Engineering, Chungnam National Univ.) ;
  • Kim, B.S. (Dept. of Aerospace Engineering, Chungnam National Univ.)
  • 남도우 (충남대학교 항공우주공학과) ;
  • 이영준 (충남대학교 항공우주공학과) ;
  • 이종윤 (충남대학교 항공우주공학과) ;
  • 김병수 (충남대학교 항공우주공학과)
  • Received : 2016.10.07
  • Accepted : 2016.12.14
  • Published : 2016.12.31

Abstract

Wing is the most important part of aircraft which produces lift. In general when aircraft takes off or lands, high lift is required and additional devices are adopted in front and aft-side of wing, which constitute so-called multi element airfoils. The objective of this research is to develop a specialized grid generation program to help engineers in reducing human labor and eliminating time-consuming process for mesh regeneration by deforming the initially-given grid system with efficient deforming method. This paper describes briefly about the mesh deformation methods, and provides some results to verify the quality of deformed mesh and eventually correctness of current approach.

Keywords

References

  1. 1983, Braden, J.A., Whipkey, R.R., Jones G.S. and Lilley, D.E., "Experimental study of the separating confluent boundary-layer volume II - Experimental data," LOCK HEED-GEORGIA COMPANY, NASA Contractor Report, 166018.
  2. 1954, Axelson, J.A. and Stevens, G.L., "Investigation of a slat in several different positions on an NACA 64A010 airfoil for a wide range of subsonic Mach numbers," NACA TN, 3129.
  3. ANSYS Fluent, http://www.ansys.com/
  4. 2002, van Dam, C.P., "The aerodynamic design of multi-element high-lift systems for transport airplanes," Progress in Aerospace Sciences, Vol.38, pp.101-104.
  5. 1990, Batina, J.T., "Unsteady Euler Airfoil Solutions Using Unstructured Dynamic Meshes," AIAA Journal, Vol.28, No.8.
  6. 1998, Farhat, C., Degand, C., Koobus, B. and Lesoinne, M., "An Improved Method of Spring Analogy for Dynamic Unstructured Fluid Meshes," AIAA Paper 1998-2070.
  7. 2006, Liu, X., Qin, N. and Xia, H., "Fast dynamic grid deformation based on Delaunay graph mapping," Journal of Computational Physics, 211, 405-423. https://doi.org/10.1016/j.jcp.2005.05.025
  8. 1982, Eriksson, L.E., "Generation of boundary-conforming grids around wing-body configurations using transfinite interpolation," AIAA Journal, Vol.20, No.10.
  9. 2008, Skala, V., "Barycentric coordinates computation in homogeneous coordinates," Computer & Graphics, Vol.32, Issue 1, pp.120-127. https://doi.org/10.1016/j.cag.2007.09.007