LIST OF FIGURES 
Figure 1 — Location of Origin and Volume Element in a Turbulent Region. . 
Figure 2 — Directional Pattern of Intensity and All Components of Mean- 
Square Sound Pressure in Plane of the Two Axes 
of a Lateral Quadrupole ........... SUIS Sanur ReNeren eee 
Figure 3 — Directional Patterns of Three Components of Mean-Square 
Sound Pressure in All Planes Containing the Axis of 
aaWongitudinaly Quadrupole!) cjvs leniency sii) oe tile) vealienicn 
Figure 4 — The Induction Near- and Far-Field Components of the Intensity 
Field in All Planes Containing the Axis of a 
Longitudinal Quadrupole .. . aise 
Figure 5 — Typical Air Jet Noise Spectrum and Approximate Changes 
that Occur if Data Are Taken at an Average Distance 
ofslubioot fromthe Jeti sin acc altel) een aus See eT Oia aie 
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