Inhibition of the aero-optical effects of supersonic mixing layers based on the RVGAs’ control

Zihao Xia; Haolin Ding; Shihe Yi

doi:10.3788/COL202321.030102

Chinese Optics Letters, Volume. 21, Issue 3, 030102(2023)

Inhibition of the aero-optical effects of supersonic mixing layers based on the RVGAs’ control

Zihao Xia^1、**, Haolin Ding^1,2、*, and Shihe Yi¹

Author Affiliations

¹College of Aerospace Science and Technology, National University of Defense Technology, Changsha 410073, China

²College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

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Figures & Tables(7)

Fig. 1. Supersonic mixing layer wind tunnel and the RVGA device.

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Fig. 2. Schematic diagram of the NPLS system.

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Fig. 3. NPLS images of supersonic mixing layers.

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Fig. 4. Mean and standard deviation values of ${OPD}_{rms}$ along the streamwise direction.

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Fig. 5. Distribution of density fluctuation and its correlation length along the streamwise direction.

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Table 1. Wind Tunnel Operating Conditions^a
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Table 1. Wind Tunnel Operating Conditions^a
$RSP = 1$ $RSP = 0.72$ $RSP = 1.21$
F1 F2 F1 F2 F1 F2
Ma 2.6 3.6 2.6 3.6 2.6 3.6
$ρ (kg \cdot m^{- 3})$ 0.035 0.058 0.025 0.058 0.042 0.058
P₀(kPa) 16.4 101.0 11.8 101.0 19.9 101.0
T₀(K) 303
Mc 0.24

Table 2. Geometric Parameters of the RVGA^a
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Table 2. Geometric Parameters of the RVGA^a
$h (mm)$ $L (mm)$ $θ (\deg)$ $β (\deg)$ $D (mm)$ $b (mm)$ $d (mm)$
RVGA1 0.5 3.20 36.69
RVGA2 0.8 4.97 23.07 9.33 1.60 0.80 0.10
RVGA3 1.2 7.37 15.50

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Zihao Xia, Haolin Ding, Shihe Yi, "Inhibition of the aero-optical effects of supersonic mixing layers based on the RVGAs’ control," Chin. Opt. Lett. 21, 030102 (2023)

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