A photographic method for drop characterization in agricultural sprinklers

被引：77

作者：

Salvador, Raquel ^{[1
]}

Bautista-Capetillo, C. ^{[2
]}

Burguete, J. ^{[1
]}

Zapata, N. ^{[1
]}

Serreta, A. ^{[3
]}

Playan, E. ^{[1
]}

机构：

[1] CSIC, Dept Soil & Water, Aula Dei Expt Stn, Zaragoza 50080, Spain

[2] Univ Autonoma Zacatecas, Dept Planeac Recursos Hidraul, Zacatecas 801, Mexico

[3] Univ Zaragoza, Escuela Politecn Super Huesca, Huesca 22071, Spain

来源：

IRRIGATION SCIENCE | 2009年 / 27卷 / 04期

关键词：

SIZE DISTRIBUTIONS; KINETIC-ENERGY; RAINDROP SIZE; WIND DRIFT; IRRIGATION; EVAPORATION; SIMULATION; LOSSES;

D O I：

10.1007/s00271-009-0147-2

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The characterization of drops resulting from impact sprinkler irrigation has been addressed by a number of techniques. In this article, a new technique based on low-speed photography (1/100 s) is presented and validated. The technique permits to directly measure drop diameter, velocity and angle. The photographic technique was applied to the characterization of drops resulting from an isolated sprinkler equipped with a 4.8 mm nozzle and operating at a pressure of 200 kPa. Sprinkler performance was characterized from photographs of 1,464 drops taken at distances ranging from 1.5 to 12.5 m. It was possible to analyze separately the drops emitted by the main jet and those emitted by the impact arm. The proposed technique does not require specific equipment, although it is labor intensive.

引用

页码：307 / 317

页数：11

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