HYDRODYNAMIC BEHAVIOR OF COMPOUND RECTANGULAR OPEN CHANNELS

被引：85

作者：

NAOT, D

NEZU, I

NAKAGAWA, H

机构：

[1] KYOTO UNIV,DEPT CIV ENGN,KYOTO 606,JAPAN

[2] KYOTO UNIV,GRAD SCH ENGN,DIV GLOBAL ENVIR ENGN,KYOTO 606,JAPAN

来源：

JOURNAL OF HYDRAULIC ENGINEERING-ASCE | 1993年 / 119卷 / 03期

关键词：

D O I：

10.1061/(ASCE)0733-9429(1993)119:3(390)

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The hydrodynamic response of the turbulent flow in a compound rectangular open channel to the flood-plain depth, roughness, and symmetry, and to the channel Reynolds number is demonstrated. The flow in the four basic asymmetric channels measured by Tominaga and Nezu in 1991 is numerically simulated, as well as other channel configurations, including symmetric channels. Turbulence is modeled by the energy-dissipation model, combined with the algebraic stress model suggested by Naot and Rodi in 1982. The three-dimensional flow is solved using the parabolic pressure correction algorithm of Patankar and Spalding. The examples suggest estimations for the friction factors, and the mass exchange rate between the flood plain interior and its threshold.

引用

页码：390 / 408

页数：19