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Keywords: Bubble Growth
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Journal Articles
Article Type: Research-Article
J. Heat Transfer. August 2016, 138(8): 081503.
Paper No: HT-15-1592
Published Online: May 3, 2016
... Bubble growth Heat transfer enhancement Micro heat transfer Nanoscale heat transfer Boiling heat transfer is an important heat transfer process in many heat transfer equipment. Many researchers have investigated the boiling heat transfer of pure water by numerical and experimental methods [ 1...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. June 2014, 136(6): 061502.
Paper No: HT-13-1316
Published Online: March 11, 2014
... and pressure drop characteristics during two phase flow in microchannels. In this paper, a simplified model has been developed for predicting bubble growth rate at nucleation cavity in microchannel. It is assumed that heat supplied at nucleation site is divided between the liquid phase and the vapor phase...
Journal Articles
Article Type: Research-Article
J. Heat Transfer. July 2013, 135(7): 071501.
Paper No: HT-12-1077
Published Online: June 6, 2013
... line, and can still be seen after 10.5 ms, but is not clearly visible by 19.5 ms. At this time-point, the beginning of bubble distortion can be seen, with complete transition to spherical-cap shape around 26 ms, following a stage of rapid bubble-growth and accelerated rise. Measurements of the droplet...
Journal Articles
Article Type: Technical Briefs
J. Heat Transfer. January 2006, 128(1): 100–103.
Published Online: July 26, 2005
... and flow boiling where bubbles are nucleated heterogeneously and expanded from solid surface cavities. The derived solution was also applied to bubble growth due to mass diffusion in the process of cavitation. a bubble radius, m Cp specific heat at constant pressure, kJ/kg K...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. June 2004, 126(3): 329–338.
Published Online: June 16, 2004
... properties 9 Fluctuation of liquid-vapor interface heat flux with time 10 Variation of fractional vapor volume with time for constant and variable thermal properties Figures 11 ( a ) and ( b ) show the isotherms and interfacial shape during the bubble growth at two different time...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. April 2004, 126(2): 259–271.
Published Online: May 4, 2004
... and generates a heat flux of more than 750 MW/m 2 . A stroboscopic technique with a time resolution of 30 ns and spatial resolution of 2 μm was used to capture the dynamics of the bubble growth and collapse. From the nucleation theory, the nucleation temperatures are close to the kinetic limit of superheat...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 2004, 126(4): 507–517.
Published Online: April 30, 2004
... of the impediments to developing a prediction model for the deposition process is the complexity of the basic mechanisms of scale formation and the interaction between deposition and bubble growth, nucleation site density and detachment phenomena. The reliable...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. February 2004, 126(1): 8–16.
Published Online: March 10, 2004
..., which grows rapidly and occupies the entire channel. A number of investigators have considered this vapor slug as an elongated bubble. The rapid bubble growth pushes the liquid-vapor interface on both caps of the vapor slug at the upstream and the downstream ends, and leads to a reversed flow...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. December 2003, 125(6): 1074–1086.
Published Online: November 19, 2003
... as the heater is covered by vapor all the time. In general, boiling on microheaters is characterized by larger bubble departure sizes, smaller bubble growth rates due to the dryout of microlayer as the bubble grows, and higher bubble incipience superheat. As the heater size decreases, the boiling curve shifts...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. October 2003, 125(5): 858–866.
Published Online: September 23, 2003
... Division September 18, 2002; revision received May 16, 2003. Associate Editor: V. P. Carey. 18 September 2002 16 May 2003 23 09 2003 surfactants convection bubbles adsorption Additives Bubble Growth Heat Transfer Interface Microscale Thermocapillary Boiling...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. August 2003, 125(4): 687–692.
Published Online: July 17, 2003
... Editor: V. P. Carey. 30 April 2001 20 February 2003 17 07 2003 bubbles nucleation heat transfer contact angle Bubble Growth Heat Transfer Microscale Phase Change Device miniaturization evolved from IC-based micro-fabrication technology has brought forth...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. October 2002, 124(5): 864–874.
Published Online: September 11, 2002
..., and merging criteria, as well as surface cavity size characterization. It is postulated that for liquid/solid interface temperatures at and above the LFP, a sufficient number of cavities (about 20 percent) are activated and the bubble growth rates are sufficiently fast that a continuous vapor layer...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. August 2002, 124(4): 704–716.
Published Online: July 16, 2002
... flow visualisation Boiling Bubble Growth Enhancement Heat Transfer Refrigeration It is known that nucleate boiling is characterized by the formation of vapor bubbles from fixed sites randomly distributed on a heating surface. Moreover, enhanced boiling surfaces would generally create...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. April 2002, 124(2): 375–382.
Published Online: October 18, 2001
... spherical bubble is nucleated with a waiting period up to 2 sec while the wall temperature can drop up to 8°C depending on the magnitude of the input current. After the formation of a thermal bubble, the resister temperature rises and reaches a steady state eventually. The bubble growth rate is found...
Journal Articles
Article Type: Technical Papers
J. Heat Transfer. February 2002, 124(1): 51–62.
Published Online: August 16, 2001
... August 2001 Recently, several efforts have been made to numerically simulate bubble growth and departure associated with partial nucleate boiling. Lee and Nydahl 1 computed the bubble growth on a horizontal surface using a numerical mapping method. Although Lee and Nydahl solved numerically...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. November 1999, 121(4): 865–873.
Published Online: November 1, 1999
... and Thermocapillarity ,” Journal of Colloid and Interface Science , Vol. 172 , pp. 395 – 406 . Zell M. , Straub J. , and Vogel B. , 1989 , “ Pool Boiling under Microgravity ,” Physicochemical Hydrodynamics , Vol. 11 , No. 5 , pp. 813 – 823 . Boiling Bubble Growth Microgravity Two...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 1999, 121(3): 623–631.
Published Online: August 1, 1999
... simulation, the location where the vapor-liquid interface contacts the wall is observed to expand and then retract as the bubble grows and departs. The effect of static contact angle and wall superheat on bubble dynamics has been quantified. The bubble growth predicted from numerical analysis has been found...
Journal Articles
Article Type: Research Papers
J. Heat Transfer. August 1998, 120(3): 735–742.
Published Online: August 1, 1998
... that homogeneous nucleation occurs on the microresistors according to the electrothermal model and experimental measurements. 06 Jan 1997 06 Mar 1998 05 12 2007 Bubble Growth Phase Change Thermocapillary Thermophysics Thin Films 3M, C., 1991, Fluorinert Electronic Liquids Product...