Two-phase Taylor-flow reduced order thermal modeling

Márton Németh, A. Poppe

Research output: Article

1 Citation (Scopus)

Abstract

The paper presents a novel reduced order model which enables the heat transfer analysis of microchannels consisting of continuously moving microdroplets with constant heat flux on the wall. Due to the low Reynolds number which is typical in microfluidic applications, the hydrodynamics can be described as Taylor-flow. Two-phase Taylor-flow is the basis of many microfluidic applications such as bio-chemical microreactors where segmented zones are required to accurately characterize enzyme reactions. This new model represents a microtube with horizontally alternating and moving phases. The results obtained by the reduced order model match the results of a validated detailed Ansys-Fluent model with 5 % accuracy at the channel wall. The reduced order model accounts for microcirculation and back flow. The proposed reduced order model of the two-phase Taylor-flow is foreseen to be included in system level description of chemical microrectors.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalMicrosystem Technologies
DOIs
Publication statusAccepted/In press - dec. 31 2015

Fingerprint

Microfluidics
Microcirculation
low Reynolds number
microchannels
Microchannels
Hot Temperature
Heat flux
enzymes
heat flux
Reynolds number
Hydrodynamics
Enzymes
heat transfer
hydrodynamics
Heat transfer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Hardware and Architecture
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Two-phase Taylor-flow reduced order thermal modeling. / Németh, Márton; Poppe, A.

In: Microsystem Technologies, 31.12.2015, p. 1-14.

Research output: Article

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