Mathematical models are developed for heat conduction in creeping flow of a liquid over a microstructured superhydrophobic surface, where because of hydrophobicity, a gas is trapped in the cavities of the microstructure. As gas is much lower in thermal conductivity than liquid, an interfacial temperature slip between the liquid and the surface will develop on the macroscale. In this note, the temperature jump coefficient is numerically determined for several types of superhydrophobic surfaces: a surface with parallel grooves, and surfaces with two-dimensionally distributed patches corresponding to the top of circular or square posts, and circular or square holes. These temperature jump coefficients are found to have a nearly constant ratio with the corresponding velocity slip lengths.
Skip Nav Destination
The University of Hong Kong,
e-mail: cong@hku.hk
Michigan State University,
Article navigation
Technical Briefs
Temperature Jump Coefficient for Superhydrophobic Surfaces
Chiu-On Ng,
The University of Hong Kong,
e-mail: cong@hku.hk
Chiu-On Ng
1
Department of Mechanical Engineering
,The University of Hong Kong,
Pokfulam Road
, Hong Kong
e-mail: cong@hku.hk
1Corresponding author.
Search for other works by this author on:
C. Y. Wang
Michigan State University,
C. Y. Wang
Department of Mathematics
,Michigan State University,
East Lansing, MI 48824
Search for other works by this author on:
Chiu-On Ng
Department of Mechanical Engineering
,The University of Hong Kong,
Pokfulam Road
, Hong Kong
e-mail: cong@hku.hk
C. Y. Wang
Department of Mathematics
,Michigan State University,
East Lansing, MI 48824
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received March 26, 2013; final manuscript received January 13, 2014; published online March 7, 2014. Assoc. Editor: Robert D. Tzou.
J. Heat Transfer. Jun 2014, 136(6): 064501 (6 pages)
Published Online: March 7, 2014
Article history
Received:
March 26, 2013
Revision Received:
January 13, 2014
Citation
Ng, C., and Wang, C. Y. (March 7, 2014). "Temperature Jump Coefficient for Superhydrophobic Surfaces." ASME. J. Heat Transfer. June 2014; 136(6): 064501. https://doi.org/10.1115/1.4026499
Download citation file:
Get Email Alerts
Cited By
Related Articles
Natural Convection in a Vertical Slit Microchannel With Superhydrophobic Slip and Temperature Jump
J. Heat Transfer (March,2014)
Application of Differential Transform Method to Heat Conduction in Tapered Fins
J. Heat Transfer (February,2002)
Transient Heat Conduction in a Heat Generating Layer Between Two Semi-Infinite Media
J. Heat Transfer (April,2002)
Investigation of the Initial Inverse Problem in the Heat Equation
J. Heat Transfer (April,2004)
Related Chapters
Introduction
Introduction to Finite Element, Boundary Element, and Meshless Methods: With Applications to Heat Transfer and Fluid Flow
Resistance Mythology
Hot Air Rises and Heat Sinks: Everything You Know about Cooling Electronics Is Wrong