摘要
The paper is to integrate aerodynamic and aero-acoustic optimizatiom design of high lift devices,especially for two-element airfoils with slat.Aerodynamic analysis on flow field utilizes a high-order,high-resolution spatial differential method for large eddy simulation(LES),which can guarantee accuracy and efficiency.The aeroacoustic analysis for noise level is calculated with Ffowcs Williams-Hawkings(FW-H)integration formula.Fidelity of calculation is verified by standard models.Method of streamline-based Euler simulation(MSES)is used to obtain the aerodynamic characters.Based on the confirmation of numerical methods,detailed research has been conducted for the leading edge slat on multi-element airfoils.Various slot parameter influences on noise are analyzed.The results of the slot optimization parameters can be used in multi-element airfoil design.
The paper is to integrate aerodynamic and aero-acoustic optimizatiom design of high lift devices, especially for two-element airfoils with slat. Aerodynamic analysis on flow field utilizes a high-order, high-resolution spatial differential method for large eddy simulation （LES）, which can guarantee accuracy and efficiency. The aeroacoustic analysis for noise level is calculated with Ffowcs Williams-Hawkings （FW-H） integration formula. Fidelity of calculation is verified by standard models. Method of streamline-based Euler simulation （MSES） is used to obtain the aerodynamic characters. Based on the confirmation of numerical methods, detailed research has been conducted for the leading edge slat on multi-element airfoils. Various slot parameter influences on noise are analyzed.The results of the slot optimization parameters can be used in multi-element airfoil design.
