Rain Microstructure and Erosivity Relationships under Pressurized Rainfall Simulator
Rain Microstructure and Erosivity Relationships under Pressurized Rainfall Simulator
复制标题
加压降雨模拟器下雨水微观结构与侵蚀力关系
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Fethi Ahmed
中科院分区：
文献类型：
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作者：
M. A. Elbasit;C. Ojha;Z. Ahmed;H. Yasuda;A. Salmi;Fethi Ahmed
摘要降雨模拟器已被广泛用于评估降雨与地表之间的相互作用。雨模拟器的主要目标是在一定的地理位置产生与自然降雨特征相似的雨。本文研究了加压模拟系统产生的降雨的微结构特征及其对降雨侵蚀力的影响，并与不同环境下的自然降雨进行了比较。用两个压电式换能器测量了模拟的雨滴特性，研究了雨滴的动能和雨滴的尺寸分布。加压模拟系统能够产生不同强度的降雨，且压力与降雨强度之间的关系具有统计学意义。另一方面，基于时间的降雨动能随降雨强度呈线性增加。压力式降雨模拟器表现出较低的体积动能(KEC)和热稳定性。
AbstractRain simulators have been used extensively in order to assess the interaction between rainfall and land surface. The main objective of a rain simulator is to produce rain with characteristics similar to natural rainfall at a certain geographical location. This paper investigates the microstructural characteristics of rainfall generated by a pressurized simulation system and their impact on rainfall erosivity in comparison with natural rainfall for different environments. The simulated raindrop characteristics have been measured using two piezoelectric transducers to investigate the rainfall kinetic energy and drop size distribution. The pressurized simulation system was able to generate rain with different intensities and the relationship between the pressure and rainfall intensity was statistically significant. On the other hand, the time-based rainfall kinetic energy was increasing linearly with rainfall intensity. The pressurized rain simulator showed low volume–based kinetic energy (KEc) and t...
泵送降雨模拟器：降雨脉冲对沉积物浓度和尺寸的影响
影响因子：
3.3
作者：
Armstrong A
通讯作者：
Armstrong A