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首页> 外文期刊>Acta Horticulturae >Evaluation of plastic nets air flow performance in a micro wind tunnel
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Evaluation of plastic nets air flow performance in a micro wind tunnel

机译:微风隧道塑料网气流性能评价

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In order to evaluate the influence of the texture characteristics of agricultural nets on the air flow passing through, a micro wind tunnel was built in the "Testing and Engineering Laboratory" at the Sachim SRL, an Italian HDPE technical textiles manufacturer. The wind tunnel allowed setting up the inclination of the net samples inside with respect to the air flow (90° perpendicular, 60°, 45°, 30°). First results in terms of coefficient of discharge of 4 flat woven round monofilament HDPE nets are reported in this paper. The net response to the air flow was based on the discharge coefficient approach based on Bernoulli's theory. Results confirmed the parabolic dependence of the pressure drop on the square of the velocity and on the porosity bymeans of the parameter (1-e2)/e2. Concerning the influence of inclination of the net on loss coefficient, a correlation with sen20 was found, described by an exponential regression curve depending on the porosity of the net.
机译:为了评估农业网纹理特征对通过通风的空气流量的影响,一台微风隧道采用意大利HDPE技术纺织品制造商SACHIM SRL的“测试和工程实验室”。 风洞允许在空气流(90°,60°,45°,30°)相对于空气流程(90°,45°,30°)上设立网上样品的倾斜度。 本文报道了4个扁平梭织圆形单丝HDPE网的排出系数方面的首先结果。 对空气流的净响应基于基于Bernoulli理论的放电系数方法。 结果证实了压降对速度平方和参数(1-E2)/ E2的孔隙率的抛物线依赖性。 关于净倾斜对损耗系数的影响,发现与塞20的相关性,这是根据网的孔隙率的指数回归曲线描述。

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