For the estimation of the vertical gust response, the spatial correlation of fluctuating aerodynamic forces, R
L plays important role. Generally, the spatial correlation of approaching flow fluctuation R
W, is used instead of R
L, because the measurement of R
L is difficult However, R
L is not equal to R
W. This difference influences the result of gust response analysis. In this study, the relation between R
L and Rw was examined by two models with different types of separation from leading-edge in several grid turbulent flows. Furthermore, the effects of aerodynamic gust forces acting on upper and lower surface of deck on the correlation characteristics of the fluctuating lift were also investigated.
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