Experimental investigation of turbulent wall jets

Summary

Presents the results of testing three-dimensional wall jets discharged from round nozzle-type outlets (diameters 43 mm, 76 mm and 152 mm) under isothermal conditions.  Reports on literature review, experimental setup and test results. Concludes that in the case of large nozzles (76 mm and 152 mm), the maximum velocity decay coefficient K-values of a wall jet can always be estimated by multiplying the square root of two with those of a free jet with the same exit area.  However, for a small nozzle (43 mm), K-values become lower.

Primary Author(s): Yue Z

Source: ASHRAE Trans., 2002, vol.108, part 1, paper number 4512, p203-209, 9 figs., 1 tab., refs.

             BSRIA Abstract Doc 000103933 Abs 20022363

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