River Flow Characteristics Numerical Simulation

E-ISSN： 1662-8985|2014|1073|1697-1701

ISSN： 1022-6680

Source： Advanced Materials Research, Vol.2014, Iss.1073, 2015-01, pp. : 1697-1701

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Abstract

Divergence river which tributary and mainstream converge is one normal type of river. Study on divergence river flow characteristics has significant meaning both on academic and practical of river protection. Numerical stimulation is a effective method to study divergence river. Using intersection area’s orthogonal generalized model, analyze flow ratio of tributary and mainstream can show the influence of converge point’ position and strength. Numerical stimulation shows mainstream’s downstream of divergence river exist high-velocity flow on both side; right side’s velocity peek is larger than left side. Under the same condition, when the flow ratio bigger then right side’s velocity peek larger and the same time left side’s smaller. Velocity peek is largest when tributary flowing only and is smallest when mainstream flowing only. The result suggest that divergence river downstream should be protected and the best condition is mainstream flowing only.