Three-Dimensional Heat Transfer of a Confined Circular Impinging Jet With Buoyancy Effects

Koichi Ichimiya; Yoshio Yamada

doi:10.1115/1.1527901

Journal of Heat Transfer | Volume 125 | Issue 2 | TECHNICAL PAPERS

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TECHNICAL PAPERS: Jets, Wakes, and Impingement Cooling

Three-Dimensional Heat Transfer of a Confined Circular Impinging Jet With Buoyancy Effects

Koichi Ichimiya and Yoshio Yamada

[+] Author and Article Information

Koichi Ichimiya

Department of Mechanical Systems Engineering, Yamanashi University, Takeda-4, Kofu, Yamanashi 400-8511, Japan

Yoshio Yamada

Sanshin Industry Co. Ltd., Shinbashimachi-1400, Hamamatsu, Shizuoka 432-8528, Japan

J. Heat Transfer 125(2), 250-256 (Mar 21, 2003) (7 pages) doi:10.1115/1.1527901 History: Received December 10, 2001; Revised April 15, 2002; Online March 21, 2003

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Co-ordinate system

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Experimental apparatus

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Velocity vectors and temperature distribution near the heated wall (h=10 mm): (a) Re=400; and (b) Re=1000.

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Heat flux visualization by thermosensitive liquid crystal (h=10 mm): (a) Re=400; and (b) Re=1000.

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Flow visualization across the θ−z section (h=10 mm,Re=400)

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Velocity vectors and temperature distribution across the r−z section (θ=45 deg): (a) Re=400; (b) Re=1000; (c) Re=1500; and (d) Re=2000.

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Velocity vectors and temperature distribution across the θ−z section (r=160 mm): (a) Re=400; (b) Re=1000; (c) Re=1500; and (d) Re=2000.

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Peripherally averaged Nusselt number along the radial direction (h=10 mm)

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Velocity vectors and temperature distribution near the heated wall (h=20 mm,Re=1000)

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Heat flux visualization by thermosensitive liquid crystal (h=20 mm,Re=1000)

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Velocity vectors and temperature distribution across the r−z section (θ=45 deg): (a) h=5 mm; (b) h=10 mm; (c) h=15 mm; and (d) h=20 mm.

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Velocity vectors and temperature distribution across the θ−z section (r=150 mm): (a) h=5 mm; (b) h=10 mm; (c) h=15 mm; and (d) h=20 mm.

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Peripherally averaged Nusselt number along the radial direction (Re=1000)

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Averaged Nusselt number

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Ichimiya K, Yamada Y. Three-Dimensional Heat Transfer of a Confined Circular Impinging Jet With Buoyancy Effects. ASME. J. Heat Transfer. 2003;125(2):250-256. doi:10.1115/1.1527901.

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Three-Dimensional Heat Transfer of a Confined Circular Impinging Jet With Buoyancy Effects

References

Figures

Co-ordinate system

Experimental apparatus

Velocity vectors and temperature distribution near the heated wall (h=10 mm): (a) Re=400; and (b) Re=1000.

Heat flux visualization by thermosensitive liquid crystal (h=10 mm): (a) Re=400; and (b) Re=1000.

Flow visualization across the θ−z section (h=10 mm,Re=400)

Velocity vectors and temperature distribution across the r−z section (θ=45 deg): (a) Re=400; (b) Re=1000; (c) Re=1500; and (d) Re=2000.

Velocity vectors and temperature distribution across the θ−z section (r=160 mm): (a) Re=400; (b) Re=1000; (c) Re=1500; and (d) Re=2000.

Peripherally averaged Nusselt number along the radial direction (h=10 mm)

Velocity vectors and temperature distribution near the heated wall (h=20 mm,Re=1000)

Heat flux visualization by thermosensitive liquid crystal (h=20 mm,Re=1000)

Velocity vectors and temperature distribution across the r−z section (θ=45 deg): (a) h=5 mm; (b) h=10 mm; (c) h=15 mm; and (d) h=20 mm.

Velocity vectors and temperature distribution across the θ−z section (r=150 mm): (a) h=5 mm; (b) h=10 mm; (c) h=15 mm; and (d) h=20 mm.

Peripherally averaged Nusselt number along the radial direction (Re=1000)

Averaged Nusselt number

Tables

Errata

Discussions

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