Orthogonal modes are an effective method for aerodynamic shape optimization due to their excellent design space compactness; however, all existing methods generated from a database of representative geometry. Moreover, application high-fidelity spaces is not possible because high-frequency components insufficiently bounded, leading nonsmooth and oscillatory geometries. In this work, new generic...

With rapid development of urban rail transit, maglev trains, benefiting from its comfortable, energy-saving and environmentally friendly merits, have gradually entered people's horizons. In this paper, aiming at improving the aerodynamic performance an train, optimization design has been performed. An improved two-point infill criterion adopted to construct cross-validated Kriging model. Meanwh...

Wind power has been widely considered in recent years as an available and a clean renewable energy source. The cost of wind energy production is currently the main issue, and increasing the size of wind turbines can reduce wind energy production costs. Hence, megawatt wind turbines are being rapidly developed in recent years. In this paper, an aerodynamic analysis of the NREL 5MW turbine is...