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Keywords: liquid films
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Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. February 2012, 134(2): 021801.
Published Online: December 13, 2011
...Xiaofei Wang; P. S. Hrnjak; S. Elbel; A. M. Jacobi; Maogang He Flow mode transitions for a liquid film falling over flat tubes are studied for a wide range of conditions. Hydraulic oil, ethylene glycol, ethylene-glycol-water mixtures (at three different volume ratios), and water are used as working...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. January 2012, 134(1): 011501.
Published Online: October 28, 2011
... liquid films rotational flow thin films two-phase flow film cooling surface curvature mist cooling heat transfer enhancement The film cooling technique is applied in modern gas turbines to protect the components such as the turbine blades from hot combustion gases. The inlet...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. October 2011, 133(10): 101505.
Published Online: August 15, 2011
... mixtures heat transfer liquid films water binary condensation ammonia–water mixtures Marangoni instabilities It is generally accepted that binary vapor condensation produces lower rates of heat transfer than those found for pure vapor condensation (Sparrow and Marschall [( 1 )], Stephan...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 2011, 133(8): 081504.
Published Online: May 4, 2011
... fluid oscillations heat pipes heat transfer liquid films pipe flow pulsatile flow oscillating pulsating heat pipe simulation The pulsating (or oscillating) heat pipe (PHP) is a long capillary tube bent into many branches and partially filled with a two-phase, usually single...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. May 2011, 133(5): 051501.
Published Online: January 31, 2011
... J. Heat Transfer 0022-1481 , 112 ( 3 ), pp. 744 – 750 . 10.1115/1.2910449 Hu , X. , and Jacobi , A. M. , 1996 , “ The Intertube Falling Film. 2. Mode Effects on Sensible Heat Transfer to a Falling Liquid Film ,” ASME J. Heat Transfer 0022-1481 , 118 ( 3 ), pp. 626 – 633...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. April 2011, 133(4): 042901.
Published Online: January 19, 2011
... oscillations laminar flow liquid films pipe flow two-phase flow film evaporation film condensation oscillating heat pipe The increased demand on high performance required by the information technology industry has raised thermal design challenges due to both increased heat dissipation from...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2010, 132(12): 122403.
Published Online: September 20, 2010
...Yaohua Zhang; Yoshio Utaka; Yuki Kashiwabara Experiments were performed using the laser extinction method to measure the thickness of the liquid film formed by growing flattened bubbles in a microchannel for gap sizes of 0.5 mm, 0.3 mm, and 0.15 mm. Water, ethanol, and toluene were used as test...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2010, 132(12): 121601.
Published Online: September 20, 2010
... and they scale on the thickness of the fluid layer. This investigation documents the formation of cells in the liquid film in the presence of a uniform-heat-flux lower boundary condition. Liquid crystal thermography was used to image the cells and measure the temperature distribution on the lower surface...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. March 2010, 132(3): 031702.
Published Online: January 4, 2010
..., the boiling heat transfer of ethanol was studied. It was found that boiling with bubble growth in both upstream and downstream directions leaving behind a thin evaporating liquid film on the tube wall is the dominant phase change process. Wavy patterns on the film surface indicate shear forces between vapor...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. March 2010, 132(3): 031603.
Published Online: December 30, 2009
...T. W. Ng; A. Narain; M. T. Kivisalu To overcome the limitations/disadvantages of many known liquid film thickness sensing devices (viz. conductivity probes, reflectance based fiber-optics probes, capacitance probes, etc.), a new liquid film thickness sensor that utilizes fluorescence phenomena...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. March 2010, 132(3): 031501.
Published Online: December 29, 2009
... and vapor film generation on the boiling surfaces has revealed significant insights into the boiling mechanisms at low saturation pressures. 23 03 2009 17 08 2009 29 12 2009 29 12 2009 bubbles film boiling flow visualisation heat transfer liquid films natural convection...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2009, 131(12): 121010.
Published Online: October 15, 2009
... caused by the engulfing liquid-film's collapse. Good agreement was found between these predicted time-points and measured changes in the boiling profile. This form of boiling, though being very rapid and sustaining high heat transfer rates, is still calm in nature, therefore, more predictable and widely...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. December 2009, 131(12): 121007.
Published Online: October 15, 2009
..., gravity, phase change, and viscosity. The level set method is used to capture the movement of the liquid-vapor interface. The governing equations are solved using finite difference method. Spray cooling is studied using this model, where a vapor bubble is growing in a thin liquid film on a hot surface...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. November 2009, 131(11): 111501.
Published Online: August 26, 2009
... flow liquid films solutions film condensation similarity solution vertical plate The engineering significance of condensation heat transfer stems from Watt’s steam engine, and remains critical to power and refrigeration applications. Nusselt provided the first rigorous analytical...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Heat Mass Transfer. August 2009, 131(8): 082901.
Published Online: June 5, 2009
...Yasuo Koizumi; Ryou Enari; Hiroyasu Ohtake The behavior of a liquid film that flows down countercurrently along the inner surface of a circular pipe was examined. In the experiments of the present study, silicone oils of 500 cS, 1000 cS, and 3000 cS, as well as water, were used as the liquid phase...
Journal Articles
Journal Articles