Experimental analyses of high Knudsen number flows

Tomohide Niimi, Hideo Mori, Hiroki Yamaguchi, yu Matsuda

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In late years, the necessity of high Knudsen number flows, such as highly rarefied gas flows with large mean free path and gaseous flows around nanodevices with small characteristic length have increased significantly, especially in fields of researches on space technology, surface science, fabrication of thin film for semi-conductor and so on. In this paper, we describe mainly the optical diagnostic techniques for the high Knudsen number flows, such as laser induced fluorescence (LIF), resonantly enhanced multiphoton ionization (REMPI) and pressure sensitive molecular film (PSMF), and our experimental results obtained by the use of the techniques, i.e., applications of LIF to visualization of flow field structures including complicated shock wave system and to a measurement of rotational temperature, establishment of a REMPI system and its application to detection of rotational nonequilibrium in highly rarefied gas flows, and development of the suitable PSMF for low density and micro-scale gas flows.

Original languageEnglish
Pages (from-to)213-227
Number of pages15
JournalInternational Journal of Emerging Multidisciplinary Fluid Sciences
Volume1
Issue number3
DOIs
Publication statusPublished - 2009 Sep 1
Externally publishedYes

Fingerprint

Knudsen flow
gas flow
Flow of gases
rarefied gases
laser induced fluorescence
Ionization
Fluorescence
ionization
Lasers
flow visualization
Shock waves
mean free path
Flow of fluids
shock waves
Flow fields
flow distribution
Visualization
conductors
Fabrication
Thin films

Keywords

  • High Knudsen number flows
  • Laser induced fluorescence
  • Pressure sensitive molecular film
  • Pressure sensitive paint
  • Resonantly enhanced multiphoton ionization

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

Cite this

Experimental analyses of high Knudsen number flows. / Niimi, Tomohide; Mori, Hideo; Yamaguchi, Hiroki; Matsuda, yu.

In: International Journal of Emerging Multidisciplinary Fluid Sciences, Vol. 1, No. 3, 01.09.2009, p. 213-227.

Research output: Contribution to journalArticle

Niimi, Tomohide ; Mori, Hideo ; Yamaguchi, Hiroki ; Matsuda, yu. / Experimental analyses of high Knudsen number flows. In: International Journal of Emerging Multidisciplinary Fluid Sciences. 2009 ; Vol. 1, No. 3. pp. 213-227.
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