辫状河的水动力学

Luo Ching- Ruey
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引用次数: 0

摘要

辫状河河段和冲积系统的特点是其多螺纹平台和泥沙输运因素,由于侵蚀和沉积形成了沙洲和河汊。辫状河中泥沙的频繁输沙和河道位置的快速移动引起了人们的关注和讨论,并涉及到学科组合的复杂考虑。本文介绍了其基本特征,并进一步介绍了文献和方法中的复杂机制。本文对辫状河道生态和辫状河的治理进行了讨论,特别是对二次流进行了详细的论述,并对速度波动的二维流相乘组合作了详细的说明。将工程师、地球科学家和关注环境经济学、规划、社会和政治战略的社会科学家联系起来,以充分评估不同时间尺度下不同选择的有效性和可靠性,这种跨学科的方法确实很敏感。加强对辫状河形成机理的公众教育显得尤为重要和必要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Hydrodynamics of braiding river
Braided river reaches and alluvial systems are characterized by their multi-threaded planform and agents of sediment transport due to eroding and deposing to form the bars and riffles. In braided river, frequent sediment transport and the quick shifting of the positions about the river channel induce many attentions discussion and relating a complicated consideration of the combinations of disciplines. In this article we introduce its fundamental characteristics and further the complicated mechanism in the literature and methodologies. The braided channel ecology and the management of braided river are mentioned and discussed, especially, the secondary currents, in this paper we explain in detail, the combinations on multiplying of 2-D flow of the velocity fluctuations. The interdisciplinary approach on linking engineers, earth scientists and social scientists concerned with environmental economics, planning, and societal and political strategies in order to fully evaluate the validity and reliability of different selections to various timescales is really sensitive. Furthermore, the requirements of public education on reinforcing about the mechanism of braided river formation will be obviously important and necessary.
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