那賀川長距離区間を対象とした簡易平面二次元解析法の実用性の検証
キーワード:
simple two-dimensional analysis method,
flood flow,
sediment transport,
riverbed variation,
replenished sediment
2019 年 25 巻 p. 243-248
詳細
2019 年 25 巻 p. 243-248
A model to predict in the Naka River downstream of Nagayasu-Guchi Dam is required for elucidating of sediment transport with replenished sediment. The authors present the simple two-dimensional analysis method which contains the suspended load model and tributary model to predict in a long-distance of the Naka River. This model was validated by using the 2014 flood data and compared with results of the two-dimensional analysis method. This paper shows that this model has the same ability compared with the two-dimensional analysis method on the estimation of the water surface profile, velocity vectors, and sediment transport. Moreover, it was revealed that this model can analyze in one-eighth of the time required with the two-dimensional analysis method.
