Structure of grid turbulence through a heated screen

T. Ueda, O. Hisai, I. N.G. Wardana, M. Mizomoto

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Measurements of mean values and turbulent intensities of velocity and temperature fluctuations of grid turbulence have been made in a developing region just after an electrically heated screen. The air velocity is set as 1 m/s. The electric current to the screen is adjusted to be the downstream temperature (T "SUB a" ) 32 degrees C, 100 degrees C or 150 degrees C. Hot-wire anemometry with compensation for temperature variation is used to measure velocity with temperature variation. In a developing region, both velocity and temperature distributions become non-uniform at a point just downstream of the heated screen. The distributions recover gradually to the uniform condition in a downstream region. Turbulent energy dissipates with the distance from the heated screen. The dissipation rate is decreased with increasing air temperature. (A)

本文言語English
ページ(範囲)266-272
ページ数7
ジャーナルJSME INT. J. (SERIES II)
35
2
DOI
出版ステータスPublished - 1992

ASJC Scopus subject areas

  • 工学(全般)

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