Browse > Article

LOW-SPEED AERODYNAMIC CHARACTERISTIC OF TRANSITION FLOW OVER THE NACA0012  

Jeon, Sang-Eon (건국대학교 대학원 항공우주정보시스템공학과)
Park, Soo-Hyung (건국대학교 항공우주정보시스템공학과)
Kim, Sang-Ho (건국대학교 항공우주정보시스템공학과)
Byun, Yung-Hwan (건국대학교 항공우주정보시스템공학과)
Jung, Kyung-Jin (국방과학연구소)
Kang, In-Mo (국방과학연구소)
Publication Information
Journal of computational fluids engineering / v.15, no.3, 2010 , pp. 1-8 More about this Journal
Abstract
Laminar separation bubble and transitional flow over the NACA0012 are investigated at a moderate range of Reynolds numbers. A Reynolds-Averaged Navier-Stokes code is coupled with an empirical transition model that can predict transition onset points and the length of transition region. Without solving the boundary layer equations, approximated e-N method is directly applied to the RANS code and iteratively solved together. The computational results are compared with the experimental data for the NACA0012 airfoil. Results of transition onset point and the length are compared well with experimental data and Xfoil prediction. The present RANS results show at high angles of attack better agreement with experimental data than Xfoil results using the boundary layer equations.
Keywords
Laminar Separation; Transition Flow; Navier-Stokes; Xfoil;
Citations & Related Records
연도 인용수 순위
  • Reference
1 1997, Johansen, J., Prediction of Laminar/Turbulent Transition in Airfoil Flows, $RIS\phi$-R-987(EN).
2 1988, Ladson, C.L., "Effects of Indepndent Variation of Mach and Reynolds Numbers on the Low-Speed Aerodynamic Characterstics of the NACA 0012 Airfoil section," NASA Technical Memorandum 4074.
3 1973, Gregory, N. and O'Reilly, C.L., "Low-speed Aerodynamic Characteristics of NACA 0012 Aerofoil Section, including the Effects of Upper-Surface Roughness Simulating Hoar Frost," Tech. rep. NPL AERO Rept. 1308.
4 2007, Lian, Y. and Shyy, W., "Laminar-Turbulent Transition of a Low Reynolds Number Rigid or Flexible Airfoil," AIAA, Vol.45, No.7, pp.1501-1513.   DOI   ScienceOn
5 2008, Perraud, J., Cliquet, J., Houdeville, R. and Arnal, D., "Transport Aircraft Three-Dimensional High-Lift-Wing Numerical Transition Prediction," Journal of Aircraft, Vol.45, No.5, pp.1554-1563.   DOI   ScienceOn
6 1986, Drela, M. and Giles, M.B., "Viscous-Inviscid Analysis of Transonic and Low Reynolds Number Airfoils," AIAA, Vol.25, No.10, pp.1347-1355.
7 2006, Geissler, W. and Haselmeyer, H., "Investigation of dynamic stall onset," Aerospace Science and Technology, Vol.10, pp.590-600.   DOI   ScienceOn
8 2004, Park, S.H. and Kwon, J.H., "Implementation of Turbulence Models in an Implicit Multigrid Method," AIAA, Vol.42, No.7, pp.1348-1357.   DOI   ScienceOn
9 2006, Windte, J., Scholz, U. and Radespiel, R., "Validation of the RANS-simulation of laminar separation bubbles on airfoils," Aerospace Science and Technology, Vol.10, pp.484-494.   DOI   ScienceOn