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一种紊流抗堵塞灌水器流道结构设计方法
Authors
范兴科,吴普特,刘雪芹,牛文全,冯浩,汪有科,高建恩
Publication date
13 July 2005
Publisher
Abstract
本发明公开了一种紊流抗堵塞灌水器流道设计方法。该方法基于水力学中的扰动流和涡流理论而提出,流道单元侧面采用具有涡流曲面特征的弧形曲面,两侧反向错位排列。采用这种方法进行滴灌灌水器的流道设计,一方面使得流道的两侧为光滑曲面,具有流线形结构,消除了边角的零速度区,避免了细小颗粒的沉淀;另一方面水流在通过流道时,可自动形成扰动和涡流,避免了泥沙颗粒的沉积,而且对于附着在流道壁上的杂物具有冲刷作用。反复改变水流方向,自动产生回旋扰动,不仅具有很好的冲淤效果,而且具有很好的消能效果,从而提高了滴灌灌水器流到的自冲洗抗堵塞性能
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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Last time updated on 21/09/2018