スプリンクラの散水分布特性に関する研究（Ⅲ）

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  • スプリンクラの散水分布特性に関する研究-3-
  • スプリンクラ ノ サンミズブンプ トクセイ ニ カンスル ケンキュウ 3
  • Studies on the Characteristics of Sprinkler Distribution Patterns (III)

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Applying it to the above result in view of watering always effected by the wind, I considered the decision of the rational disposition. As for the space and distance between the square and the rectangle nozzles. I calculated the equality degree and the mean depth of sprinkler distribution with the iconography. It was made clear that the equality degree was in good condition at the arrangement of 16×l6(m) at the wind speed of about 1m/sec and at that of 14×l4(m) at that of about 2m/sec. It was also proved to keep nearly standard value. As the wind of about 2～3m/sec is always blowing in the field, it is best to water at the arrangement of 12×l2(m), considering the stability of sprinkler distribution. As for the mean depth of sprinkler distribution, the more the wind speed increases, the more the disperse quality increases outside the arrangement of the nozzles. So on the whole the mean depth of sprinkler distribution within the boundary gradually decreases. If the quality of watering at one time is 30mm, it takes about 15mm/h at the arrangement of 12×12(m) at the wind speed of about 3m/sec and the quality needed can be watered in two hours. On the above consideration, 1 made the sprinkling test at the same arrangement and got equality degree and mean depth of sprinkler distribution. The propriety of the value I got with the iconography could be proved. After all it has become clear that if the square watering is carried out when it is windy, the arrangement of 12×l2(m) is most rational at all points.

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