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에어포일의 결빙에 의한 실속 및 항력 특성 변화에 관한 CFD 해석
정성기(S.K. Jung),신성민(S.M. Shin),명노신(R.S. Myong),조태환(T.H. Cho) 한국전산유체공학회 2009 한국전산유체공학회 학술대회논문집 Vol.2009 No.4
The aerodynamic performance of aircraft in icing condition can deteriorate considerably by contamination of aerodynamic and propulsive systems due to icing accretions on aircraft surfaces. A computational analysis based on the Eulerian description was performed on an airfoil to investigate effects of ice accretions on airfoil aerodynamics. A water droplet with liquid water concentration (0.00075㎏/㎥) and mean volume diameter (20㎛) was considered and applied to various angles of attack to investigate the stall angle decrease and the drag increment.
이진희(J.H. Lee),양영록(Y.R. Yang),신성민(S.M. Shin),명노신(R.S. Myong),조태환(T.H. Cho) 한국전산유체공학회 2008 한국전산유체공학회 학술대회논문집 Vol.2008 No.-
An approach to CFD code validation is developed that gives proper consideration to experimental and simulation uncertainties. The comparison errors include the difference between the data, simulation values and represents the combination of all errors. The uncertainties of modeling and numerical analysis in the CFD prediction were estimated by a Coleman's theory. In this paper, the numerical solutions are calculated by A-type standard uncertainty and Richardson extrapolation Method.