肱川感潮域における懸濁物質の動態:観測結果と凝集体の分裂を考慮した解析 Dynamics of Suspended Solid in Hiji River Estuary:Field Measurement and Numerical Analysis considering the Breakage of Aggregate

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Abstract

The present paper is composed of the field measurement in Hiji river estuary and the numerical simulation for suspended solid. In the field measurement, the turbidity maximum was not able to confirm. It was the reason that the rate of discharge due to rainfall is much during the measured period. The breakage of aggregate is modeled, that is, when the diameter of the aggregate is larger than the micro-scale by Kolmogorov and the drag force acted to the aggregate excesses the critical value, the aggregate splits into two equal fragments. In the numerical analysis, the temporal variation of suspended solid concentration agrees well with the measured results.

Journal

  • PROCEEDINGS OF COASTAL ENGINEERING, JSCE

    PROCEEDINGS OF COASTAL ENGINEERING, JSCE (54), 351-355, 2007

    Japan Society of Civil Engineers

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