浮遊砂による流体の粘度の変化と一様流および津波による流動場に与える影響に関する研究

中村 友昭; 鈴木 愛美; 趙 容桓; 水谷 法美

doi:10.2208/jscejoe.72.I_163

Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

Online ISSN : 2185-4688
ISSN-L : 2185-4688

Annual Journal of Civil Engineering in the Ocean Vol.32

STUDY ON VISCOSITY CHANGE DUE TO SUSPENDED SEDIMENT AND ITS INFLUENCE ON FLOW FIELD UNDER UNIFORM FLOW AND TSUNAMI

Tomoaki NAKAMURA, Manami SUZUKI, Yong-hwan CHO, Norimi MIZUTANI

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Keywords: viscosity, suspended sediment, non-Newtonian fluid, uniform flow, tsunami

JOURNAL FREE ACCESS

2016 Volume 72 Issue 2 Pages I_163-I_168

DOI https://doi.org/10.2208/jscejoe.72.I_163

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Abstract

Estimation equations for the viscosity of water containing suspended sediment were proposed, and flow fields under a uniform flow and a tsunami were investigated using a numerical model combined with the estimation equations. Numerical results showed that the maximum tsunami force on an onshore structure was affected by the change in the density and viscosity due to suspended sediment, suggesting that it is essential to consider the effects of suspended sediment in assessing the maximum tsunami force.

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