太原理工大学学报2016，Vol.47Issue(6)：774-778,5.DOI:10.16355/j.cnki.issn1007-9432tyut.2016.06.017
双内齿矩形迷宫流道灌水器水力特性分析
Analysis of Double Gear Rectangular Labyrinth Hydraulic Characteristics
摘要
Abstract
In this paper the rectangular labyrinth channel was adding internal teeth to form a double gear rectangular labyrinth.The influence of tooth height and tooth spacing on flow field in the emitter was simulated by using CFD software.The results indicate with introduction of inter-nal teeth to form double gear rectangular labyrinth,flow index is generally lower and hydraulic properties are betten;The flow coefficient decreases with the increase of height of inner teeth,in-creases with the increase in tooth spacing,but when the inner tooth height is too large or too small,the change trend is not obvious;The flow pattern first decreases and then increase with the increase of the internal gear height.When the inner tooth height is 0.7 mm,flow index increases with the increase of internal tooth spacing.For other internal tooth height,flow index changes with the internal tooth spacing not obviously;When the inner tooth height is 0.7 mm,tooth spac-ing is 0.3 mm,flow index is minimum.关键词
迷宫流道/内齿/数值模拟/水力性能/灌水器Key words
labyrinth channel/internal tooth/numerical simulation/hydraulic performance/e-mitter分类
农业科技引用本文复制引用
金龙,李治勤,马炎超,王超..双内齿矩形迷宫流道灌水器水力特性分析[J].太原理工大学学报,2016,47(6):774-778,5.基金项目
国家自然科学基金资助项目:蓄水坑灌条件下苹果园水分运移机制与调控研究(51579168) （51579168）
