MATEC Web of Conferences
Volume 18, 2014101 EUROTHERM Seminar – Transport Phenomena in Multiphase Systems
|Number of page(s)||7|
|Section||Boiling, evaporation, condensation|
|Published online||05 December 2014|
Numerical simulation and modeling of liquid film evaporation inside axisymmetric reentrant cavities
Institute for Technical Thermodynamics, Technische Universität Darmstadt, 64287 Darmstadt, Germany
a Corresponding author: firstname.lastname@example.org
Evaporation of thin liquid films inside reentrant cavities occurs in several boiling processes where enhanced surfaces are utilized. In this work, evaporation from a single reentrant cavity with an additional thin channel is studied. The channel allows the backflow of liquid from the pool into the cavity during bubble growth. Direct numerical simulations were performed, showing a strong relation between flow to the film inside the cavity and bubble growth at the pore. Additionally, a model was created with a novel modeling approach which is based on solving the Young-Laplace equation. From the model characteristic nondimensional parameters can be obtained and the influence of geometry variations on hydrodynamics can be studied.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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