Numerical simulation of nonlinear flow and heat transfer in a sudden expansion and contraction channel

  • M. Yang
  • , L. Q. Yang
  • , W. Lu
  • , L. Li
  • , Q. X. Liu
  • , Y. W. Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Numerical simulation of forced flow in sudden-expansion followed by sudden-contraction rectangular channel was presented for the whole flow region. The nonlinear flow and heat transfer characteristics were investigated by various Reynolds number and geometrical dimension and the critical Reynolds numbers under different conditions have been calculated. The results show flow and heat transfer from symmetric state to asymmetric state with the increase of Re. When Re<Rec (critical Reynolds number for flow transformation), the symmetric state is stable. On the other hand, when Re ≥Rec, the flow loses stability and from symmetric to asymmetric via a symmetry-breaking bifurcation. And the heat transfer performance have relevant characteristics as fluid flow.

Original languageEnglish
Title of host publicationMicro/Nano-Thermal Manufacturing and Materials Processing; Boiling, Quenching and Condensation Heat Transfer on Engineered Surfaces; Computational Methods in Micro/Nanoscale Transport; Heat and Mass Transfer in Small Scale; Micro/Miniature Multi-Phase Devices; Biomedical Applications of Micro/Nanoscale Transport; Measurement Techniques and Thermophysical Properties in Micro/Nanoscale; Posters
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791849668
DOIs
StatePublished - 2016
Externally publishedYes
EventASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2016 - Biopolis, Singapore
Duration: 4 Jan 20166 Jan 2016

Publication series

NameASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2016
Volume2

Conference

ConferenceASME 2016 5th International Conference on Micro/Nanoscale Heat and Mass Transfer, MNHMT 2016
Country/TerritorySingapore
CityBiopolis
Period4/01/166/01/16

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