Experimental study on single-phase gas flow in microtubes

T. T. Zhang, L. Jia, C. W. Li, L. X. Yang, Y. Jaluria

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

An experimental system for single-phase gas flow in microtubes has been developed. The effects of viscous heating and compressibility on the flow and temperature field were studied for a wide range of governing parameters. Also, an analyticalnumerical model of the flow was developed. Numerical results for the flow and heat transfer in the slip flow region were found to agree quite well with the experimental data, lending support to the model. The study provides greater physical insight into and understanding the effects of viscous dissipation and compressibility in microtube flow and the associated heat transfer. In addition, the combined experimental and numerical simulation approaches of the process can be used for control and optimization of systems based on microtube heat transfer.

Original languageEnglish (US)
Article number111703
JournalJournal of Heat Transfer
Volume133
Issue number11
DOIs
StatePublished - 2011

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Science(all)

Keywords

  • compressibility
  • microtube
  • temperature field
  • viscous heating

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