基于正交试验的三角环流流道灌水器数值模拟

doi:10.3969／j.issn.1674—8530.2010.05.016

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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.

Key words： emitter orthogonal experiment hydraulic performance numerical calculation

Received: 07 July 2009 Published: 30 September 2010

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	Articles by authors
	WANG Xin-Kun
	Li-Jun-Hong
	LI Ya-Fei
	XU Wen-Bo

Cite this article:

WANG Xin-Kun,Li-Jun-Hong,LI Ya-Fei等. Numerical calculation of triangle circulation drip irrigation emitters based on orthogonal experiment[J]. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(5): 444-448.

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http://zzs.ujs.edu.cn/pgjx/EN/10.3969／j.issn.1674—8530.2010.05.016 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2010/V28/I5/444

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