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    초록·키워드

    The compact scheme with a new method to detect the transition point is applied to low-Reynolds number (Re = 3.43 x 10?, 2.51 x 10?) over the NACA9324 airfoil. RANS simulations have difficultly to predict the stalling characteristics because the large separation and transition occur in flow at low-Reynolds number region, NACA9324 shows peculiar aerodynamic characteristics. Its stall type change from leading-edge stall to trailing-edge stall when the Reynolds number increase over 3.43 x 10?. In preliminary study, fully laminar computations using conventional 3<SUP>rd</SUP>-order TVD and 2<SUP>nd</SUP>-order central differencing could not predict stalling characteristics of the NACA9324. Because that computations couldn’t resolve a laminar bubble and a transition from laminar to turbulent flow. Thus, compact high-order scheme with the new transition method is applied to the flow around the NACA9324 airfoil. As a current result, the compact scheme succeeds in predicting the trailing-edge stalling aerodynamic characteristics. The new transition method is being examined.

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