A linear stability analysis of a vapor film in terms of the triggering of vapor explosions

Masahiro Furuya, Kunihito Matsumura, Izumi Kinoshita

Research output: Contribution to journalArticle

Abstract

A Detailed analytical model to explain the vapor film collapse was developed to evaluate the occurrence conditions of self triggering vapor explosions. The following conclusions were drawn based on linear stability analysis using the thermo-dynamic property of water, by linearizing and perturbing basic equations (Rayleigh-Lamb-Plesset's bubble momentum equation, the mass conservation equation, the state equation for ideal gas, and the Clausius-Clapeyron equation). The vapor film stabilizes with the reduction of the hot-liquid diameter, decreasing the condensation heat transfer coefficient, and increasing the thermal radiation coefficient. The cold-liquid viscosity and surface tension have a stabilizing effect, though this effect is negligibly small where the hot liquid diameter is over 1 mm. The analysis predicts the vapor explosion occurrence limits obtained experimentally by other researchers to within approximately 10 K.

Original languageEnglish
Pages (from-to)3176-3182
Number of pages7
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume68
Issue number675
DOIs
Publication statusPublished - 2002 Jan 1
Externally publishedYes

Fingerprint

Linear stability analysis
Explosions
explosions
Vapors
vapors
liquids
occurrences
Rayleigh equations
Viscosity of liquids
conservation equations
Heat radiation
thermal radiation
Liquids
ideal gas
heat transfer coefficients
Heat transfer coefficients
Surface tension
Analytical models
Condensation
Conservation

Keywords

  • Bubble Groth Theory
  • Film Boiling
  • Linear Stability Analysis
  • Triggering
  • Vapor Explosions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

A linear stability analysis of a vapor film in terms of the triggering of vapor explosions. / Furuya, Masahiro; Matsumura, Kunihito; Kinoshita, Izumi.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 68, No. 675, 01.01.2002, p. 3176-3182.

Research output: Contribution to journalArticle

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