Unified mechanistic multiscale mapping of two-phase flow patterns in microchannels

Autor: Rémi Revellin, Iztok Zun, John R. Thome, Avram Bar-Cohen
Přispěvatelé: Laboratory of Heat and Mass Transfer, Ecole Polytechnique Fédérale de Lausanne (EPFL), Thermal Packaging of Electronic and Photonic Systems Laboratory (TherPES), University of Maryland [College Park], University of Maryland System-University of Maryland System, Centre de Thermique de Lyon (CETHIL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratory for Fluid Dynamics and Thermodynamics, University of Ljubljana
Rok vydání: 2013
Předmět:
Condensation
Computer science
020209 energy
General Chemical Engineering
Aerospace Engineering
Thermodynamics
02 engineering and technology
01 natural sciences
Two-phase flow
010305 fluids & plasmas
Physics::Fluid Dynamics
Set (abstract data type)
Development (topology)
0103 physical sciences
0202 electrical engineering
electronic engineering
information engineering
Statistical physics
Flow boiling
Adiabatic process
Representation (mathematics)
Pressure gradient
Fluid Flow and Transfer Processes
Mechanical Engineering
Flow patterns
Nuclear Energy and Engineering
Flow (mathematics)
Flow regimes
Heat transfer
[SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph]
[PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph]
Flow pattern map
Zdroj: Experimental Thermal and Fluid Science
Experimental Thermal and Fluid Science, Elsevier, 2013, 44, pp.1-22. ⟨10.1016/j.expthermflusci.2012.09.012⟩
ISSN: 0894-1777
DOI: 10.1016/j.expthermflusci.2012.09.012
Popis: To better understand the underlying two-phase phenomena and thus better predict transitions between the various two-phase flow patterns, it is necessary to update our way of thinking from one-of-a-kind flow pattern maps of limited applicability to a generalized approach based on first principles, mechanistic analysis and multi-scale characterization and representation of the important features of these complex flows. While in macro-sized channels and pipes this need is typically addressed by the use of empirically-validated flow regime maps, there is - as yet - no consensus on two-phase flow regime maps for microchannels and miniature pipes. This study presents a set of recommendations for the development of a new comprehensive type of flow pattern map that not only covers adiabatic, evaporating and condensing flows in one seamless flow pattern identification tool, but also includes multiscale information about the flow itself, and furthermore contains embedded mechanistic methods for the principal two-phase phenomena for use in developing unified models for pressure gradients, heat transfer, void fraction, CHF, etc., all in one coherent global method. (C) 2012 Elsevier Inc. All rights reserved.
Databáze: OpenAIRE
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