On the lateral fluid motion during pool boiling via preferentially located cavities

被引：14

作者：

Kapsenberg, F. ^{[1
]}

Strid, L. ^{[1
]}

Thiagarajan, N. ^{[2
]}

Narayanan, V. ^{[1
]}

Bhavnani, S. H. ^{[2
]}

机构：

[1] Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA

[2] Auburn Univ, Dept Mech Engn, Auburn, AL 36849 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 15期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

LEIDENFROST; RATCHET;

D O I：

10.1063/1.4871863

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Passively generated lateral motion of fluid during pool boiling on asymmetrically textured mesoscale structures is discussed in this Letter. The surface texture is in the form of 30 degrees-60 degrees mm-scale ratchets with re-entrant cavities located on the 30 degrees face. High speed visualization of growing bubbles from cavities indicates growth and departure normal to the 30 degrees face of the ratchets. A semi-empirical model of net axial liquid velocity due to the non-vertical bubble growth is developed and validated in a pool boiling experiment. (C) 2014 AIP Publishing LLC.

引用

页数：4

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