Simulation of vapor bubble growth in nucleate pool boiling

Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2020

Guardado en:
Detalles Bibliográficos
Autor principal: Diaz, Christopher
Otros Autores: Stroh, Alexander
Formato: Tesis de maestría
Lenguaje:Inglés
Publicado: 2023
Materias:
EVAPORACIÓN
EBULLICIÓN
BURBUJAS
Acceso en línea:https://ri.itba.edu.ar/handle/20.500.14769/4211
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-20.500.14769-4211
record_format dspace
spelling I32-R138-20.500.14769-42112026-01-15T15:10:34Z Simulation of vapor bubble growth in nucleate pool boiling Diaz, Christopher Stroh, Alexander EVAPORACIÓN EBULLICIÓN BURBUJAS Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2020 Two-phase flows with phase change are a useful phenomenon for small-scale cooling devices, where high quantities of excess heat need to be removed on a limited frame of space. Bubble formation through evaporation however is a highly dynamic process that still has not been fully investigated and is difficult to control. In order to advance further research in this area, a Volume-of-Fluid based solver is investigated for bubble growth in this thesis. The solver is based on the OpenFOAM solver interFoam and is extended with functionalities to depict evaporation processes. In this thesis, the focus is put on the solver’s ability to correctly simulate evaporation. Especially the phase-change development near the threephase contact line where the two-phase interface and the solid heated surface meet, is of interest. In this area the evaporation reaches high levels of magnitude and therefore needs special consideration. The chosen approach in this solver is a data regression to link these parately calculated values of the three-phase region with the rest of the domain. In this work bubble growth without solid structure, quasi-steady contact line evaporation and saturated pool boiling on a solid surface are simulated and compared against analytical, highly resolved and experimental results. The solver’s models are able to correctly depict the processes within a reasonable margin of error. The bubble growth in a superheated fluid gives an acceptable deviation of radius with respect to Scriven’s analytical solution. Quasi-steady evaporation also confirms the solver’s capability to correctly predict threephase contact line behavior compared to Stephan and Busse’s high-resolution simulation campaign. For saturated boiling the solver is highly dependent on grid resolution and the condensation coefficient f. However, a similar behavior with good agreement to the experiment conducted by Yaboki can be reproduced with an adequate set of parameters. 2023-07-21T12:30:37Z 2023-07-21T12:30:37Z 2020 Tesis de maestría https://ri.itba.edu.ar/handle/20.500.14769/4211 en application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic EVAPORACIÓN
EBULLICIÓN
BURBUJAS
spellingShingle EVAPORACIÓN
EBULLICIÓN
BURBUJAS
Diaz, Christopher
Simulation of vapor bubble growth in nucleate pool boiling
topic_facet EVAPORACIÓN
EBULLICIÓN
BURBUJAS
description Tesis Energía y Ambiente (maestría) - Instituto Tecnológico de Buenos Aires - Karlsruher Institut für Technologie, Karlsruhe, 2020
author2 Stroh, Alexander
author_facet Stroh, Alexander
Diaz, Christopher
format Tesis de maestría
author Diaz, Christopher
author_sort Diaz, Christopher
title Simulation of vapor bubble growth in nucleate pool boiling
title_short Simulation of vapor bubble growth in nucleate pool boiling
title_full Simulation of vapor bubble growth in nucleate pool boiling
title_fullStr Simulation of vapor bubble growth in nucleate pool boiling
title_full_unstemmed Simulation of vapor bubble growth in nucleate pool boiling
title_sort simulation of vapor bubble growth in nucleate pool boiling
publishDate 2023
url https://ri.itba.edu.ar/handle/20.500.14769/4211
work_keys_str_mv AT diazchristopher simulationofvaporbubblegrowthinnucleatepoolboiling
_version_ 1865139472309420032

Ejemplares similares