【全集】2002 MCM A 风和喷水池 特等奖论文 教程

huashi3483

问题A
# d4 a2 W) Y2 e' r, H作者：Tjalling Ypma
5 H  j6 D  m) [8 a* o3 p标题：风和喷水池 在一个楼群环绕的宽阔的露天广场上，装饰喷泉把水喷向高空。刮风的日子，风把水花从喷泉吹向过路行人。喷泉射出的水流受到一个与风速计（用于测量风的速度和方向）相连的机械装置控制，前者安装在一幢邻近楼房的顶上。这个控制的实际目标，是要为行人在赏心悦目的景象和淋水浸湿之间提供可以接受的平衡：风刮得越猛，水量和喷射高度就越低，从而较少的水花落在水池范围以外。 你的任务是设计一个算法，随着风力条件的变化，运用风速计给出的数据来调整由喷泉射出的水流。
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: Y+ @: M. s9 x0 YProblem A
Authors: Tjalling Ypma
Title: Wind and Waterspray
An ornamental fountain in a large open plaza surrounded by buildings squirts water high into the air. On gusty days, the wind blows spray from the fountain onto passersby. The water-flow from the fountain is controlled by a mechanism linked to an anemometer (which measures wind speed and direction) located on top of an adjacent building. The objective of this control is to provide passersby with an acceptable balance between an attractive spectacle and a soaking: The harder the wind blows, the lower the water volume and height to which the water is squirted, hence the less spray falls outside the pool area. Your task is to devise an algorithm which uses data provided by the anemometer to adjust the water-flow from the fountain as the wind conditions change.

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