Rupture of a subcooled liquid film falling down a heated grooved surface

Abstract

This paper presents an experimental study of rupture of a subcooled water film falling down an 1 m long heated copper plate with longitudinal grooves of 0.5×0.15 mm² cross sectional area and 2 mm spacing. It was found that the threshold heat flux at which an initial stable dry patch forms on the grooved surface is about two times higher than that on a smooth surface. Furthermore, the grooves prevent dry patches from spreading over the total heated surface thus essentially delaying the onset of the heat transfer crisis. The main governing parameters of the experiment and their respective values are: initial film temperature (20-95°C), heat flux (0-1.26 W/cm²) and volumetric flow rate (11.1-38.2 l/h) (Re=56.2-653.2).

Original language	English
Pages (from-to)	71-74
Number of pages	4
Journal	Microgravity Science and Technology
Volume	19
Issue number	3-4
DOIs	https://doi.org/10.1007/BF02915756
Publication status	Published - 1 Jan 2007

ASJC Scopus subject areas

Modelling and Simulation
Engineering(all)
Physics and Astronomy(all)
Applied Mathematics

Access to Document

10.1007/BF02915756

Fingerprint Dive into the research topics of 'Rupture of a subcooled liquid film falling down a heated grooved surface'. Together they form a unique fingerprint.

Cite this

@article{9f16141aa92b434f84a648602c734a8d,

title = "Rupture of a subcooled liquid film falling down a heated grooved surface",

abstract = "This paper presents an experimental study of rupture of a subcooled water film falling down an 1 m long heated copper plate with longitudinal grooves of 0.5×0.15 mm2 cross sectional area and 2 mm spacing. It was found that the threshold heat flux at which an initial stable dry patch forms on the grooved surface is about two times higher than that on a smooth surface. Furthermore, the grooves prevent dry patches from spreading over the total heated surface thus essentially delaying the onset of the heat transfer crisis. The main governing parameters of the experiment and their respective values are: initial film temperature (20-95°C), heat flux (0-1.26 W/cm2) and volumetric flow rate (11.1-38.2 l/h) (Re=56.2-653.2).",

author = "Zaitsev, {D. V.} and Aviles, {M. Lozano} and H. Auracher and Kabov, {O. A.}",

year = "2007",

month = jan,

day = "1",

doi = "10.1007/BF02915756",

language = "English",

volume = "19",

pages = "71--74",

journal = "Microgravity Science and Technology",

issn = "0938-0108",

publisher = "Springer Netherlands",

number = "3-4",

}

TY - JOUR

T1 - Rupture of a subcooled liquid film falling down a heated grooved surface

AU - Zaitsev, D. V.

AU - Aviles, M. Lozano

AU - Auracher, H.

AU - Kabov, O. A.

PY - 2007/1/1

Y1 - 2007/1/1

N2 - This paper presents an experimental study of rupture of a subcooled water film falling down an 1 m long heated copper plate with longitudinal grooves of 0.5×0.15 mm2 cross sectional area and 2 mm spacing. It was found that the threshold heat flux at which an initial stable dry patch forms on the grooved surface is about two times higher than that on a smooth surface. Furthermore, the grooves prevent dry patches from spreading over the total heated surface thus essentially delaying the onset of the heat transfer crisis. The main governing parameters of the experiment and their respective values are: initial film temperature (20-95°C), heat flux (0-1.26 W/cm2) and volumetric flow rate (11.1-38.2 l/h) (Re=56.2-653.2).

AB - This paper presents an experimental study of rupture of a subcooled water film falling down an 1 m long heated copper plate with longitudinal grooves of 0.5×0.15 mm2 cross sectional area and 2 mm spacing. It was found that the threshold heat flux at which an initial stable dry patch forms on the grooved surface is about two times higher than that on a smooth surface. Furthermore, the grooves prevent dry patches from spreading over the total heated surface thus essentially delaying the onset of the heat transfer crisis. The main governing parameters of the experiment and their respective values are: initial film temperature (20-95°C), heat flux (0-1.26 W/cm2) and volumetric flow rate (11.1-38.2 l/h) (Re=56.2-653.2).

UR - http://www.scopus.com/inward/record.url?scp=36549013621&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36549013621&partnerID=8YFLogxK

U2 - 10.1007/BF02915756

DO - 10.1007/BF02915756

M3 - Article

AN - SCOPUS:36549013621

VL - 19

SP - 71

EP - 74

JO - Microgravity Science and Technology

JF - Microgravity Science and Technology

SN - 0938-0108

IS - 3-4

ER -

Rupture of a subcooled liquid film falling down a heated grooved surface

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Cite this