Library Subscription: Guest
ICHMT DL Home Current Year Archives Executive Committee International Centre for Heat and Mass Transfer

INVESTIGATION OF COUPLED THERMOCAPILLARY CONVECTION TO LIQUID/VAPOUR TRANSITION OCCURING IN CAPILLARY TUBES

Khellil Sefiane
The University of Edinburgh, James Clerk Maxwell Building, Kings Buildings, School of Engineering, Edinburgh EH9 3FB, United Kingdom; Tianjin Key Lab of Refrigeration Technology, Tianjin University of Commerce, 300134

Cosimo Buffone
Microgravity Research Centre, Universite libre de Bruxelles, Avenue F. Roosevelt 50, 1050 Bruxelles, Belgium

Abstract

In this paper a computational model is proposed to describe the thermocapillary convection observed during the evaporation of volatile liquids in capillary tubes. The computational model is based on Navier Stokes and energy conservation equations and a finite volume numerical approximation. The model takes into account the shaped liquid/vapour (L/V) interface via coordinates transformation.
The direct simulations allow the access to the stream function and the temperature distribution in the melt and to the temperature profile on the L/V interface and to describe the interaction between the external heating and the transfers in the liquid phase. The results show the enhancement in heat and mass transfer due to the thermocapillary convection. The interfacial temperature profile is investigated to reveal that the magnitude and the location of the minimum in temperature can significantly alter the observed enhancement as well as the convective patterns.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH