Three-dimensional Flow Simulation of Amitori Bay in Iriomote Island during Typhoon 1513

Amitori Bay in Iriomote Island, designated as Japan's sole marine natural conservation area, experiences complex 3D flow dynamics during extreme typhoons like Typhoon 1513, which recorded wind speeds exceeding 20 m/s. This study reveals that conventional models overestimate flow speeds when using monotonically increasing drag coefficients, suggesting a need for constraints on these coefficients under certain wind conditions. The unique reef topography of the bay significantly influences fluid dynamics, with implications for coral habitats. Researchers employed typhoon modeling to assess the impact of sea surface drag and Smagorinsky coefficients on flow patterns, comparing simulated data with field observations.

KAWASAKI, K., NIMURA, M., YAMAMOTO, T., MURAKAMI, T., & SHIMOKAWA, S. (2022). 台風1513号来襲時における西表島網取湾の3次元流動解析. Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering), 78(2), I. https://doi.org/10.2208/kaigan.78.2_i_409