CFD CFD simulation History of engineering & technology MSBC Strouhal number Technology: general issues aerodynamic admittance aerodynamic characteristics aerodynamic forces aerodynamic shape optimization aerodynamics enhancement aerostatic performance background and resonance coupled components buffeting response circular cylinder cobra probe complex terrain convolutional neural networks deep learning drag reduction enclosed housing for sound emission alleviation equivalent static wind load flapping fringe flow control flow visualization flutter stability frequency domain method galloping hard flutter high-speed train