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In “The Effect of Nozzle Design on the Stability and Performance of Turbulent Water Jets” (Fire… 1 answer below »


In “The Effect of Nozzle Design on the Stability and Performance of Turbulent Water Jets” (Fire Safety Journal, Vol. 4, August 1981), C. Theobald describes an experiment in
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which a shape measurement was determined for several different nozzle types at different levels of jet efflux velocity. Interest in this experiment focuses primarily on nozzle type, and velocity is a nuisance factor. The data are as follows.

(a) Does nozzle type affect shape measurement? Compare the nozzles with box plots and the analysis of variance.

(b) Use the graphical method from Section 5-8.1 to determine specific differences between the nozzles. Does a graph of the average (or standard deviation) of the shape measurements versus nozzle type assist with the conclusions?

(c) Analyze the residuals from this experiment.

 

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