CHARACTERISTICS OF TURBULENCE IN A CYLINDRICAL VESSEL WITH LARGE SCALE RECIRCULATING REGIONS (MEASUREMENTS OF FLOW FIELDS WITH TEMPERATURE DISTRIBUTION).

Akihiko Ichikawa, Koichi Hishida, Masanobu Maeda, Seiichi Yokobori

Research output: Contribution to journalArticle

Abstract

The characteristics of turbulence in the fields of velocity and temperature of the upper plenum of LMFBR have been investigated to estimate the behavior of thermal diffusion near the upper core structure (UCS). An inlet nozzle of a 1/20 scale experimental vessel provided a co-axial water jet with temperature distribution. The two component velocity measurements were carried out by 3 beam laser Doppler velocimetry, where the temperature was simultaneously measured to obtain correlations among fluctuations of velocity and temperature. The results indicated that the higher temperature jet flow did not mix with colder surroundings up to the bottom of the UCS. Remarkable thermal striping could be observed at the edge of UCS bottom.

Original languageEnglish
Pages (from-to)898-903
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume52
Issue number474
Publication statusPublished - 1986 Feb
Externally publishedYes

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vessels
Flow fields
flow distribution
Temperature distribution
Turbulence
temperature distribution
turbulence
liquid metal fast breeder reactors
inlet nozzles
Velocity measurement
hydraulic jets
jet flow
thermal diffusion
velocity measurement
Temperature
Thermal diffusion
temperature
laser beams
Laser beams
Nozzles

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

CHARACTERISTICS OF TURBULENCE IN A CYLINDRICAL VESSEL WITH LARGE SCALE RECIRCULATING REGIONS (MEASUREMENTS OF FLOW FIELDS WITH TEMPERATURE DISTRIBUTION). / Ichikawa, Akihiko; Hishida, Koichi; Maeda, Masanobu; Yokobori, Seiichi.

In: Nippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 52, No. 474, 02.1986, p. 898-903.

Research output: Contribution to journalArticle

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