Heat Transfer Characteristics by Impingement Jets Issuing from Dual Elongated Slot Nozzles.

Oyakawa, Kenyu; Matsuda, Shôichi; Yaga, Minoru; Atsushi, Tamashiro

doi:10.1299/kikaib.65.3084

Cited by 1 publication

(1 citation statement)

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“…5(a) resembles that of dual rectangular jets having major axes in a vertical direction, because the vertical two jets of both sides united individually before the jets impinged to the target plate. The axes switching occurred due to the difference of curvatures between vertical and horizontal axes, and the spent flow spread toward horizontal direction after jets impinged the plate [3]. The neighborhood jets were not still known to combine with each other whether in vertical or horizontal directions.…”

Section: Flow Visualizationmentioning

confidence: 99%

Study on flow and heat transfer of multiple impingement jets

Oyakawa

Hanashiro

Matsuda

et al. 2005

Heat Trans. Asian Res.

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Multiple jets are often used to obtain high heat transfer in a wide area. Heat and flow behavior of multiple jets show more complicated characteristics due to the existence of the interactions between adjoining jets, and between jets and spent flows. To clarify the influence of the flow behavior on heat transfer fields, the time and spatial heat transfer coefficients over the impingement plate were measured using an infrared radiometer when four jets impinged to the impingement plate for various jets arrangements and separating distances from jet exit to the impingement plate. The flow fields were also visualized by means of a water table. The heat transfer characteristics are made clear from the results of the instantaneous heat transfer contour or temperature fluctuation values.

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Section: Flow Visualizationmentioning

confidence: 99%