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三角繞流滴灌灌水器結(jié)構(gòu)設(shè)計和優(yōu)化
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Structural Design and Optimization of Triangle Circulation Drip Irrigation Emitters
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    摘要:

    以三角繞流滴灌灌水器結(jié)構(gòu)的流道單元為研究對象，利用Pro/E軟件完成灌水器造型設(shè)計，結(jié)合計算流體動力學(xué)軟件Fluent 6.3模擬分析流道的水力性能，研究此類灌水器的湍流特性，揭示其內(nèi)部湍流流動機理，并對流道結(jié)構(gòu)進行優(yōu)化。根據(jù)分析結(jié)果，通過改變外部大三角的形狀與內(nèi)部小三角的形狀和位置，對流道單元進行結(jié)構(gòu)優(yōu)化，得出一種流態(tài)指數(shù)小于0.5，流道內(nèi)速度分布均勻，流量在滴灌允許范圍內(nèi)，抗堵性能優(yōu)良的三角繞流灌水器結(jié)構(gòu)。

    Abstract:

    Computational fluid dynamics software Fluent 6.3 was adopted to simulate the flow of triangle circulation drip irrigation emitters, the models were built by 3-D software Pro/E. By analyzing the flow hydraulic performance and the turbulence characteristics of emitters, the mechanism of internal turbulent flow was revealed, the flow structure was optimized. Based on the simulation results, by changing the shape and position of the external and the small internal triangular, a new type of triangle circulation drip irrigation emitter with flow index of less than 0.5 was got, velocity distribution was uniform, within the allowable flow range and excellent anti-clogging performance. A theoretical basis for the triangle circulation emitters structure design and quantitative analysis was provided. 

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王新坤,李俊紅,單彬,王國相.三角繞流滴灌灌水器結(jié)構(gòu)設(shè)計和優(yōu)化[J].農(nóng)業(yè)機械學(xué)報,2010,41(Z1):43-46.Structural Design and Optimization of Triangle Circulation Drip Irrigation Emitters[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(Z1):43-46.

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