The features of a high-resolution patternation system used for measuring the spatial distribution of mass flux delivered by gas turbine engine fuel injectors having large-volume flows are described. The patternation system is based on the use of extractive probing by means of a multipoint sampling rake. Testing is conducted under ambient pressure conditions. Results of tests conducted to verify the capabilities of the system are presented. Applications of the system to establish the impact of injector aerodynamic and hydraulic design features on spray uniformity are discussed.
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McVey et al. (1987) studied this question.
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