The Measurement of Droplet Size Distributions from Rotary Atomizers

M. Teske, A. Hewitt, R. Mickle
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引用次数: 8

Abstract

Various experimental techniques have been developed to recover droplet size distributions emitted from rotary atomizers. These techniques include both single line-of-sight measurements through the center of the spray cloud and volume weighted averaging from multiple passes through portions of the spray. Because the droplet size distribution of a spray is one of the most important inputs into aerial spray prediction models such as AgDRIFT®, a consistent, widely-accepted standard for rotary atomizers should be developed and implemented with regard to this measurement. No such standard currently exists. The present paper summarizes current measurement techniques and develops a simple computer model to predict droplet movement following emission from a rotary atomizer in a wind tunnel. Qualitative comparisons are made with available data to demonstrate the effects of single line-of-sight measurements and weighted averaging from multiple passes.
旋转雾化器中液滴大小分布的测量
已经开发了各种实验技术来恢复从旋转雾化器发出的液滴尺寸分布。这些技术包括通过喷雾云中心的单视线测量和通过喷雾部分的多个通道的体积加权平均。由于喷雾的液滴大小分布是航空喷雾预测模型(如AgDRIFT®)中最重要的输入之一,因此应该针对这一测量开发和实施一致的,广泛接受的旋转雾化器标准。目前还没有这样的标准。本文总结了目前的测量技术,并建立了一个简单的计算机模型来预测从旋转雾化器在风洞中喷射后液滴的运动。与现有数据进行定性比较,以证明单视距测量和多次通过的加权平均的效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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