Abst'/> Droplet trajectory and thermal analysis of impinging saline spray flow on marine platforms in cold seas and ocean regions
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Droplet trajectory and thermal analysis of impinging saline spray flow on marine platforms in cold seas and ocean regions

机译：寒冷海域海洋平台上冲击盐水喷雾的液滴轨迹和热分析

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AbstractIn this paper, a theoretical predictive model is developed to investigate the heat and mass transfer from saline water droplets in cold seas and ocean regions. Also, the trajectory and cooling process of saline water droplets during flight over marine platforms are analyzed. The predictive model considers convection, evaporation, and radiation heat transfer from the droplet's surface to the ambient air. The results show that droplets with medium sizes can reach their maximum heights and horizontal positions at the moment of impact on the deck during flight over marine platforms. For small water droplets of approximately up to 1.1 mm, a uniform temperature within the droplet is found to be a reasonable approximation. The temperature gradient inside the droplet is small for larger droplets, because the Biot number is less than 0.5. The results indicate good agreement between the predicted results and previously published data. A sensitivity analysis is performed to examine the effects of various parameters on the trajectory and cooling process of the droplets as well as a droplet's Biot number. This analysis shows that the parameters of air temperature, droplet size, initial droplet temperature, and droplet flight time have a significant impact on the droplet cooling process, although the size of marine platforms is an important factor. Also, wind velocity plays a considerable role on the trajectory of the droplets. This model is a useful and relatively simple design tool for the analysis of thermal behaviour and prediction of the cooling process of saline water droplets.Highlights•Study of the trajectories of the water droplets in various sizes on marine platforms.•Study of the cooling process of the water droplets in cold seas and ocean regions.•Conducting a sensitivity analysis to examine the effects of different parameters on the trajectory and cooling process of the water droplets.
机译： 摘要 在本文中，建立了理论预测模型，以研究冷海和大洋地区盐水中的水滴传热和传质。此外，分析了在海洋平台上飞行过程中盐水液滴的轨迹和冷却过程。预测模型考虑了对流，蒸发和辐射热从液滴表面到周围空气的传递。结果表明，在海上平台上飞行期间，中等大小的液滴在撞击甲板时可以达到其最大高度和水平位置。对于约1.1毫米以下的小水滴，发现水滴内的均匀温度是一个合理的近似值。对于较大的液滴，液滴内部的温度梯度较小，这是因为Biot值小于0.5。结果表明预测结果与先前发布的数据之间具有良好的一致性。进行敏感性分析以检查各种参数对液滴的轨迹和冷却过程以及液滴的比奥数的影响。该分析表明，尽管海洋平台的尺寸是一个重要因素，但空气温度，液滴大小，初始液滴温度和液滴飞行时间等参数对液滴冷却过程有重大影响。而且，风速在液滴的轨迹上也起着相当重要的作用。该模型是用于分析盐水滴的热行为和预测冷却过程的有用且相对简单的设计工具。 < ce：abstract xmlns：ce =“ http://www.elsevier.com/xml/common/dtd” xmlns =“ http://www.elsevier.com/xml/ja/dtd” class =“ author-highlights” xml：lang =“ zh-CN” id =“ abs0015” view =“ all”> 突出显示 • 研究海洋平台上各种大小的水滴的轨迹。 • 中的水滴冷却过程的研究 • 进行敏感性分析，以检查不同参数对水滴轨迹和冷却过程的影响。

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