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1979

Air jets

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Axisymmetric Air Jet Impinging On A Convex Hemispherical Plate, David C. Chan May 1979

Axisymmetric Air Jet Impinging On A Convex Hemispherical Plate, David C. Chan

Theses

Experimental investigation was conducted on an axisymmetric, submerged air jet impinging normally on a smooth convex hemisphere. Three nozzle diameters of 0.5" (12.7mm), 0.375" (9.525mm) and 0.25" (6.35mm) were used and tests were run at Reynolds number range of 14,700 to 84,000.

The results obtained in the free jet and deflection zones were found to confirm the works of previous investigators. As for the fully developed wall jet region, the following points are noted:

  1. The maximum wall-velocity decay was found to possess a slightly higher rate than that of either the flat plate or the concave hemisphere.

  2. The mean velocity …

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