Abstract：To overcome the condition that emitter structures of only one single status currently, a new type of triangle circulation drip irrigation emitter was constructed. Computational fluid dynamics software Fluent 6.3 was adopted to simulate the flow of emitters, and the experiments of emitter hydraulic performance were carried out with orthogonal design method, where the key parameters of triangle circulation channel were distinguished. The impact of key structural parameters on flow index and flow rate was analysed using range analysis and variance analysis. The results show that the channel width b is the most important factor affecting the flow index x. The role of channel depth D, inlet size a and unit height h on x can be ignored. The flow rate is seriously influenced by the channel depth D, channel width b, inlet size a and unit height h, impact is decreasing. According to the linear multivariable regression method, models of flow index and flow rate with structural parameters was established. The linear multivariable regressions provide a theoretical basis for the triangle circulation emitters structure design and quantitative analysis.
王新坤， 李俊红， 李亚飞， 许文博. 基于正交试验的三角环流流道灌水器数值模拟[J]. 排灌机械工程学报, 2010, 28(5): 444-448.
Wang Xinkun， Li Junhong， Li Yafei， Xu Wenbo. Numerical calculation of triangle circulation drip irrigation emitters based on orthogonal experiment. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(5): 444-448.
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