Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 0.7

ISSN Imprimir: 1940-2503
ISSN En Línea: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2013006073
pages 303-315

HEAT TRANSFER IN SHEAR-DRIVEN THIN LIQUID FILM FLOWS

Jagannath Rao Marati
Technische Thermodynamik, Technische Universitat Darmstadt, Petersenstrasse 17, D-64287 Darmstadt, Germany
M. Budakli
Technische Thermodynamik, Technische Universitat Darmstadt, Petersenstrasse 32, D-64287 Darmstadt, Germany
Tatiana Gambaryan-Roisman
Institute of Technical Thermodynamics and Center of Smart Interfaces, Technische Universitat Darmstadt, Alarich-Weiss-Str. 10, 64287, Darmstadt, Germany
Peter Stephan
Institute for Technical Thermodynamics, Technische Universität Darmstadt, 64287 Darmstadt, Germany

SINOPSIS

The objective of the study is to investigate the hydrodynamics and heat transfer in a shear-driven liquid film flow. This process is relevant to fuel flow inside lean pre-mixed pre-vaporization chambers. A combined numerical and experimental study has been performed to determine the heat transfer in gas-driven thin liquid films on the outer surface of vertical heated tubes. Numerical simulations have been performed using the volume of fluid method implemented in the open-source computational fluid dynamics code OpenFOAM for turbulent air/water flow conditions. The code has been extended for simulation of two-phase flows with heat transfer. The Reynolds-averaged Navier−Stokes equations with the к − ε turbulence model for gas−liquid two-phase flows have been solved using the finite-volume method. The results on the wall temperature distribution and average film thickness have been compared with the experimental data. A reasonable agreement between the simulations and experiment has been found. The results indicate that the heat transfer is enhanced with increasing gas Reynolds number due to the film thinning and intensification of convection.


Articles with similar content:

HEAT TRANSFER IN SHEAR-DRIVEN THIN LIQUID FILM FLOWS
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2012, issue
Tatiana Gambaryan-Roisman, Peter Stephan, M. Budakli, Jagannath Rao Marati
On the multidimensional modeling of gas-liquid slug flows
International Heat Transfer Conference 12, Vol.39, 2002, issue
Michael Z. Podowski, Henryk Anglart
NUMERICAL SIMULATIONS OF CONDENSING R134a FLOWS IN HORIZONTAL PIPES
4th Thermal and Fluids Engineering Conference, Vol.5, 2019, issue
Josua Petrus Meyer, Abdel Khoodaruth, M.K. Elahee, Jaco Dirker, Muhammad Zaid Dauhoo, Christos N. Markides, D. Juggurnath
DETERMINATION OF HEAT TRANSFER TO LIQUID FILMS FALLING ON A VERTICAL SURFACE UNDER DIFFERENT CONDITIONS
ICHMT DIGITAL LIBRARY ONLINE, Vol.4, 2001, issue
Jonas Gylys, Stasys Sinkunas
HEAT AND MASS TRANSFER IN EVAPORATING A TURBULENT LIQUID FILM FALLING ALONG A VERTICAL TUBE
ICHMT DIGITAL LIBRARY ONLINE, Vol.13, 2008, issue
M'barek Feddaoui, Rachid Mir, Touria Mediouni, Saliha Senhaji