Fig.1

Comparison of flow channels between plain-orifice nozzle and self-excited sweeping nozzle［35］

Fig.2

Physical appearance of three nozzles

Fig.3

High-speed crossflow test system［35］

Fig.4

Overall spray appearances of three nozzles （Δp=1.5 MPa）

Fig.5

Response curves of spray angles of two nozzles varying with pressure drops

Fig.6

Transient liquid spray appearances at exit of three nozzles （Δp=1.5 MPa）

Fig.7

Comparison of droplet sizes downstream exit of self-excited sweeping nozzle and swirl nozzle

Fig.8

Schematic diagram of laser imaging sheet in test section

Table 1

Experimental specimen parameters and experimental conditions

Fig.9

Transient liquid spray distribution in central cross-section with plain-orifice nozzle （Δp=3.0 MPa）

Fig.10

Transient spray distribution in central cross-section with swirl nozzle （Δp= 3.0 MPa）

Fig.11

Transient spray distribution with self-excited sweeping nozzle in various cross-sections （Δp=3.0 MPa）

Fig.12

Dimensionless average spray concentration distribution in various cross-sections with plain-orifice nozzle （Δp = 3.0 MPa）

Fig.13

Comparison of spray boundary in central cross-section with plain-orifice nozzle under various pressure drops

Fig.14

Dimensionless average liquid spray concentration distribution in various cross-sections with swirl nozzle （Δp=3.0 MPa）

Fig.15

Comparison of oil spray boundary in central cross-section with swirl nozzle under various pressure drops

Fig.16

Dimensionless average spray concentration distribution in various cross-sections with self-excited sweeping nozzle （Δp=3.0 MPa）

Fig.17

Comparison of oil spray boundaries in various cross-sections with self-excited sweeping nozzle （Δp=3.0 MPa）

Fig.18

Comparison of oil spray boundaries with self-excited sweeping nozzle under various pressure drops （y=9 mm cross-section）

Fig.19

Comparison of penetration depths in characteristic cross-sections with three nozzles （Δp=3.0 MPa）

Fig.20

Cross-sectional dimensions of liquid spray distribution［35］

Table 2

Cross-sectional dimensions of liquid spray distribution range for three types of nozzles

Fig. 21

Comparison of distribution area of various spray concentrations with three nozzles （cross-section y=0 mm， Δp=3.0 MPa）

Fig.22

Comparison of rated areas of high relative liquid spray concentrations with three nozzles （Δp=3.0 MPa）

Fig.23

Comparison of RSD of distribution areas of liquid spray concentrations with three nozzles in various cross-sections （Δp=3.0 MPa）