Turbulent Characteristics of Thermal Stratified Flow with Increasing Interfacial Level in a Cylindrical Vessel

Seiichi Yokobori, Akihiko Ichikawa, Koichi Hishida, Masanobu Maeda

Research output: Contribution to journalArticle


Water tests in a cylindrical vessel have been performed to investigate the turbulent transport phenomena in the mixing shear layer which moves upwardly and affects the structural integrity of the vessel and internal structures during a transient condition of a fast breeder reactor. The turbulent characteristics of the coolant adjacent to a thermally stable stratified interface have been clarified by using the technique combined with 3 beam LDV and thermocouple probe. The correlations among two-component volocities and temperature are obtained simultaneously. From the experimental results, it was found that the maximum temperature gradient can be realized in the almost laminar-like condition in which the turbulent heat fluxes in the upper and lower layers are both damped.

Original languageEnglish
Pages (from-to)2120-2127
Number of pages8
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Issue number516
Publication statusPublished - 1989 Jan 1



  • Buoyancy Effect
  • Cylindrical Vessel
  • Laser Doppler Velocimetry
  • Thermal Stratification
  • Turbulence Characteristics

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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