31th Congress of the International Council of the Aeronautical Sciences

03.4 - Applied Aerodynamics

A COMPARISON STUDY ON TRANSITION CHARACTERISTICS OF NLF FORWARD-SWEPT-WING AND AFT-SWEPT-WING

Z. Zhu╣, W.-P. Song╣, Z.-H. Han╣, J.-H. Xu╣; ╣Northwestern Polytechnical University, China

Forward-swept wing (FSW) layout is a favorable concept for NLF wing design. A comparison study on transition characteristics of FSW and aft-swept wing (ASW) is carried out. A dual eN method based on LST (linear stability theory) for the prediction of transition induced by TS waves and CF instability is coupled with a three-dimensional Reynolds-averaged Navier-Stokes (RANS) solver. In this paper it is found that, FSW layout has an advantage in the realization of NLF supercritical wing design than ASW.


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