一滴水的热毛细管迁移具有导热的静止盖
Subramaniam Chembai Ganesh1, Joel Koplik2, Jeffrey F Morris1
1Levich Institute and Department of Chemical Engineering, City College of the City University of New York, New York, NY, 10031 USA.
Journal of colloid and interface science
|December 16, 2023
概括
一滴水的停滞盖的导热率显著影响其热毛细管迁移速度. 这项研究分析地模拟了帽子的效应,揭示了帽子导电性和下降速度之间的单调关系.
科学领域:
- 流体动力学 流体动力学
- 热传递是一种传递热量的过程.
- 接口现象 接口现象
背景情况:
- 在多相系统中,热毛细管迁移至关重要.
- 滴水上停滞不前的帽子可以改变迁移动态.
- 这些帽子的导热性往往被忽视.
研究的目的:
- 为了分析地建模一个有停滞帽的球形滴的热毛细管迁移.
- 为了研究停滞盖的有限导热率对滴流迁移的影响.
- 评估帽子特性对界面应力和迁移速度的影响.
主要方法:
- 在停滞帽中分析热传导的建模.
- 解决合的温度和水力动力学场方程.
- 用无限导电顶的终端速度推导一个非对称模型的推导.
主要成果:
- 滴的终端速度表现出对停滞帽的导电性的单调依赖.
- 停滞区域的大小和表面导电性影响迁移.
- 由于停滞的上限,确定了终端速度增加的极限.
结论:
- 停滞盖的有限导热率是热毛细管迁移的一个重要因素.
- 这些发现与涉及带有粒子滴和皮克林乳液的多物理问题有关.
- 了解这些影响对于优化具有不可忽视的吸附电导率的多相技术至关重要.
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