Condensation on Coherent Turbulent Liquid Jets: Part I-Experimental Study

被引：10

作者：

Kim, S. ^{[1
]}

Mills, A. F. ^{[2
]}

机构：

[1] Kukmin Univ, Dept Mech Engn, Seoul 132, South Korea

[2] Univ Calif Los Angeles, Dept Mech Aerosp & Nucl Engn, Los Angeles, CA 90024 USA

来源：

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1989年 / 111卷 / 1-4期

关键词：

Condensation; Jets; Turbulence;

D O I：

10.1115/1.3250769

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Condensation on coherent turbulent liquid jets was investigated experimentally in order to obtain a data base for the liquid side heat transfer coefficient. Jet breakup was identified by means of high-speed photography. Nozzles were formed from smooth and roughened glass tubes to define the initial turbulence level in the jets. Jet diameters of 3-7 mm and lengths of 2-12 cm were tested at jet velocities of 1.4-12 m/s giving Reynolds numbers of 6000-40,000. Viscosity and surface tension were varied by using ethanol, and water from 277-300 K, as test liquids. The Stanton number was found to be essentially independent of jet diameter, but to decrease with length to the power of -0.57, velocity to the power of -0.20, surface tension to the power of -0.30, and viscosity to the power of -0.1.

引用

页码：1068 / 1074

页数：7

共 11 条

[1]

CRITS GJ, 1961, S AN METH EMPH MIN E

[2]

Hinze O, 1975, TURBULENCE

[3] THE HYDRODYNAMICS OF A FREE, LIQUID JET AND THEIR INFLUENCE ON DIRECT CONTACT HEAT-TRANSFER .3. DIRECT CONTACT HEATING OF A CYLINDRICAL, FREE FALLING LIQUID JET [J].