TWO-DIMENSIONAL FLOW MEASUREMENTS BEHIND A HOT CYLINDER BY TWO SETS OF He-Ne FIBER LDVs.

M. Maeda, Koichi Hishida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The flow characteristics around a hot cylinder have been investigated in connection with the buoyancy effect on heat transfer coefficient and turbulent wake behind a hot cylinder submerged horizontally in a water channel. For simultaneous measurements of two-component velocities, two fiber probes of He-Ne LDV system were aligned opposite to each other on the optical axis. Scattering light was received in the forward direction by each probe. Single-mode fibers were used for transmitting optics and double Bragg cells were employed to measure backward flows. The results indicated that the buoyancy force due to an increase in heat flux enhances local heat transfer coefficients at the back face of the cylinder, wherein turbulence intensities in a vertical direction increase. It is pointed out that the buoyancy effect mainly contributes to the velocity and its fluctuation, temperature, and turbulent heat flux in the vertical direction.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
EditorsA. Dybbs, F. Ali, G. Morrison
PublisherASME
Pages179-184
Number of pages6
Volume55
Publication statusPublished - 1987

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Flow measurement
Buoyancy
Heat transfer coefficients
Heat flux
Bragg cells
Single mode fibers
Light scattering
Optics
Turbulence
Fibers
Water
Temperature

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Maeda, M., & Hishida, K. (1987). TWO-DIMENSIONAL FLOW MEASUREMENTS BEHIND A HOT CYLINDER BY TWO SETS OF He-Ne FIBER LDVs. In A. Dybbs, F. Ali, & G. Morrison (Eds.), American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED (Vol. 55, pp. 179-184). ASME.

TWO-DIMENSIONAL FLOW MEASUREMENTS BEHIND A HOT CYLINDER BY TWO SETS OF He-Ne FIBER LDVs. / Maeda, M.; Hishida, Koichi.

American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. ed. / A. Dybbs; F. Ali; G. Morrison. Vol. 55 ASME, 1987. p. 179-184.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maeda, M & Hishida, K 1987, TWO-DIMENSIONAL FLOW MEASUREMENTS BEHIND A HOT CYLINDER BY TWO SETS OF He-Ne FIBER LDVs. in A Dybbs, F Ali & G Morrison (eds), American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. vol. 55, ASME, pp. 179-184.
Maeda M, Hishida K. TWO-DIMENSIONAL FLOW MEASUREMENTS BEHIND A HOT CYLINDER BY TWO SETS OF He-Ne FIBER LDVs. In Dybbs A, Ali F, Morrison G, editors, American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. Vol. 55. ASME. 1987. p. 179-184
Maeda, M. ; Hishida, Koichi. / TWO-DIMENSIONAL FLOW MEASUREMENTS BEHIND A HOT CYLINDER BY TWO SETS OF He-Ne FIBER LDVs. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED. editor / A. Dybbs ; F. Ali ; G. Morrison. Vol. 55 ASME, 1987. pp. 179-184
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