Fig. 1

Model of large aspect ratio curved mixing duct

Fig. 2

Lobe nozzle structure

Fig. 3

Sawtooth nozzle structure

Table 1

Naming for models

Fig. 4

Schematic of computational domain

Fig. 5

Schematic of exhaust plume infrared and noise detection position distribution of mixing duct

Fig. 6

Velocity distribution on center symmetry surface of mixing duct

Fig. 7

Streamlines and temperature distribution on center symmetry surface of mixing duct

Fig. 8

Section of streamwise vortex along flow direction in mixing duct

Fig. 9

Section of orthogonal vortex along flow direction in mixing duct

Fig. 10

Pumping coefficient and pressure loss coefficient of mixing duct

Table 2

Average exhaust temperature and thermal mixing efficiency at nozzle of mixing duct

Fig. 11

Temperature distribution on section of exhaust downstream

Table 3

Average and maximum exhaust velocity at nozzle of mixing duct

Fig. 12

Velocity distribution on section of exhaust downstream

Fig. 13

Streamwise vortex distribution on section of exhaust downstream

Fig. 14

Orthogonal vortex distribution on section of exhaust downstream

Fig. 15

Infrared radiation intensity distribution in 3~5 μm band of exhaust plume on horizontal circumference

Fig. 16

Infrared radiation intensity distribution in 3~5 μm band of exhaust plume on longitudinal circumference

Fig. 17

Infrared radiation intensity distribution in 3~5 μm band of exhaust plume on transverse circumference

Fig. 18

Jet noise distribution on horizontal circumference

Fig. 19

Jet noise distribution on longitudinal circumference

Fig. 20

Jet noise distribution on transverse circumference