光纤阵列上涂层流动动力学的实验研究

IF 1.3 4区工程技术 Q2 ENGINEERING, AEROSPACE

Microgravity Science and Technology Pub Date : 2024-06-07 DOI:10.1007/s12217-024-10121-z

Bin Wang, Rong Liu

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引用次数: 0

摘要

本文研究了圆柱形纤维阵列上涂层流动的动力学。实验发现，当纤维阵列完全被液体薄膜包覆时，存在三种不同的流动状态，即 "a"、"b "和 "c "状态。流态'a'的特点是形成流向均匀的薄膜；流态'b'和'c'分别是由非对称波浪结构和对称珠子组成的行波形式。我们对光纤阵列上涂层流动的动态进行了全面的参数研究，包括流速、光纤间距和液滴振幅，这些都是不同流动状态的可靠指标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Experimental Study of the Dynamics of Coating Flow on Fiber Array

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Experimental Study of the Dynamics of Coating Flow on Fiber Array

The present paper investigated the dynamics of coating flow on array of cylindrical fibres. In the experiments, it is observed that there exist three distinct flow regimes when the fiber array is fully coated by liquid film, namely, regime ‘a’, ‘b’ and ‘c’. The flow regime ‘a’ is characterized by the formation of a streamwise uniform film; The flow regime ‘b’ and ‘c’ are in the form of traveling waves consisting of asymmetrical wavy structures and symmetrical beads, respectively. We conducted a comprehensive parametric study on the dynamics of the coating flow on fiber array, including the flow rate, fiber spacing and droplet amplitude, all of which serve as reliable indicators of different flow regimes.

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来源期刊

Microgravity Science and Technology 工程技术-工程：宇航

CiteScore

3.50

自引率

44.40%

发文量

期刊介绍： Microgravity Science and Technology – An International Journal for Microgravity and Space Exploration Related Research is a is a peer-reviewed scientific journal concerned with all topics, experimental as well as theoretical, related to research carried out under conditions of altered gravity. Microgravity Science and Technology publishes papers dealing with studies performed on and prepared for platforms that provide real microgravity conditions (such as drop towers, parabolic flights, sounding rockets, reentry capsules and orbiting platforms), and on ground-based facilities aiming to simulate microgravity conditions on earth (such as levitrons, clinostats, random positioning machines, bed rest facilities, and micro-scale or neutral buoyancy facilities) or providing artificial gravity conditions (such as centrifuges). Data from preparatory tests, hardware and instrumentation developments, lessons learnt as well as theoretical gravity-related considerations are welcome. Included science disciplines with gravity-related topics are: − materials science − fluid mechanics − process engineering − physics − chemistry − heat and mass transfer − gravitational biology − radiation biology − exobiology and astrobiology − human physiology