摘要
本文建立了一个草地喷灌系统的数学模型 ,研究了喷淋半径可以不同时喷灌系统的效率 ,证明了喷淋半径不同时喷灌系统的最大效率为 1 831 1π ≈ 90 .2 % .此结果优于焦莹所给出的喷灌系统的最大效率3 32π ≈ 82 .7% .
In this paper, a mathematical model of the sprinkling system on grassland is set up, and the efficiency of the system when the sprinkling radiuses of sprinklers are discretionary is studied. It is proved that the maximum efficiency of the system is 18311π≈ 90.2%. This result is better than that the maximum efficiency 332π≈82.7 % of the sprinkling system given by Jiao Ying.
出处
《数学的实践与认识》
CSCD
北大核心
2003年第12期15-22,共8页
Mathematics in Practice and Theory
