Infrared and Laser Engineering, Volume. 51, Issue 9, 20210965(2022)
Numerical study of fluid flow, heat transfer and infrared signature of 2D exhaust system model with full shielded guide vane combined with rear body
Figures & Tables(21)
Fig. 1. The model of baseline axisymmetric exhaust system combined with aircraft rear body
Fig. 2. The model of 2 D exhaust system combined with aircraft rear body
Fig. 4. The model of 2D exhaust system with FSGV and combined with aircraft rear body
Fig. 8. Schematic diagram of 2D exhaust system combined with rear body model detection surface
Fig. 9. Static pressure distribution on the rear body external surface
Fig. 10. Temperature field distribution on the middle section of three combined models
Fig. 11. Temperature along the wall of the C-D nozzle section of three combined models
Fig. 12. Mass fraction of CO2 on the middle section of three combined models
Fig. 13. Comparison of radiation intensity of three combined model
Fig. 14. Radiation intensity of main component of the baseline axisymmetric exhaust system combined with rear body model
Fig. 15. Radiation intensity of main component on horizontal detection surface of the 2D exhaust system combined with rear body model
Fig. 16. Radiation intensity of main component on horizonta detection surface of the 2D exhaust system with FSGV combined with rear body model
Fig. 18. Comparison of radiation intensity of 2D exhaust system with FSGV and combined with rear body model when the vane is cooling
Table 1. Boundary conditions
View tableView in ArticleTable 1. Boundary conditions
$ {P_t}/{P_0} $ $ {T_t} $ ${Y_{\rm C{ O_2} } }$ ${Y_{ \rm {H_2}O} }$ ${Y_{\rm CO} }$ Core inlet 4.64 850 0.066 0.025 0.0001 Bypass inlet 4.60 350 − − −
Table 2. Flow and thrust characteristic
View tableView in ArticleTable 2. Flow and thrust characteristic
Baseline axisymmetric exhaust system 2D exhaust system 2D exhaust system with FSGV Cd 0.991 0.978 0.962 Cf 0.976 0.973 0.96
Table 3. Resistance of rear body external surface
View tableView in ArticleTable 3. Resistance of rear body external surface
Pressure resistance/N Viscous resistance/N Total resistance/N Baseline axisymmetric exhaust system 773.008 289.171 1062.172 2D exhaust system 810.568 298.350 1108.918 2D exhaust system with FSGV 819.465 289.172 1108.638
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Wen Cheng, Honghu Ji, Xiaojuan Shi, Hao Wang. Numerical study of fluid flow, heat transfer and infrared signature of 2D exhaust system model with full shielded guide vane combined with rear body[J]. Infrared and Laser Engineering, 2022, 51(9): 20210965
Paper Information
Category: Infrared technology and application
Received: Dec. 16, 2021
Accepted: --
Published Online: Jan. 6, 2023
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