Influence of Non-Uniform Bluntness on Aerodynamic Performance and Aerothermal Characteristics of Waverider
Abstract
:1. Introduction
2. Model Introduction
3. Numerical Method Validation and Grid Convergence Tests
4. Aerothermal Characteristics and Aerodynamic Performance of Blunt Waverider
4.1. Flow-Field Comparison
4.2. Effects of Angle of Attack
4.3. Effects of Flight Altitudes
4.4. Effects of Mach Numbers
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Type | Value | Blunt Diameter/Height |
---|---|---|
Angle of attack (degrees) | 0 (base), 5, 10, 15, 20 | 4, 10, 20 |
Flight altitude (km) | 15, 20, 25 (base), 30, 35 | |
Mach number | 2, 4, 6 (base), 8, 10 |
Number | Near-Wall Size/mm | Qmax/(W/m2) | Grid Numbers |
---|---|---|---|
1 | D/2 × 10−2 | 3.57 × 106 | 1.88 × 106 |
2 | D/2 × 10−3 | 3.97 × 106 | 1.88 × 106 |
3 | D/2 × 10−4 | 4.04 × 106 | 1.88 × 106 |
4 | D × 10−5 | 4.15 × 106 | 1.88 × 106 |
5 | D × 10−5 | 4.12 × 106 | 3.35 × 106 |
Diameter/Height | Blunt Profile | Mach Numbers | ||||
---|---|---|---|---|---|---|
2 | 4 | 6 | 8 | 10 | ||
4 mm | Circular | 0.83 × 10+5 | 1.08 × 10+6 | 4.17 × 10+6 | 1.03 × 10+7 | 2.06 × 10+7 |
Non-uniform | 0.70 × 10+5 | 0.89 × 10+6 | 3.49 × 10+6 | 0.87 × 10+7 | 1.74 × 10+7 | |
Reduced by | +16% | +18% | +17% | +16% | +16% | |
10 mm | Circular | 0.52 × 10+5 | 0.71 × 10+6 | 2.71 × 10+6 | 0.69 × 10+7 | 1.36 × 10+7 |
Non-uniform | 0.43 × 10+5 | 0.59 × 10+6 | 2.29 × 10+6 | 0.57 × 10+7 | 1.13 × 10+7 | |
Reduced by | +17% | +17% | +16% | +17% | +17% | |
20 mm | Circular | 0.37 × 10+5 | 0.52 × 10+6 | 2.02 × 10+6 | 0.50 × 10+7 | 1.01 × 10+7 |
Non-uniform | 0.31 × 10+5 | 0.43 × 10+6 | 1.72 × 10+6 | 0.42 × 10+7 | 0.84 × 10+7 | |
Reduced by | +16% | +16% | +15% | +16% | +17% |
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Qu, Z.; Wang, W.; Xiao, H.; Xiao, Y.; Li, G.; Cui, K. Influence of Non-Uniform Bluntness on Aerodynamic Performance and Aerothermal Characteristics of Waverider. Aerospace 2023, 10, 205. https://doi.org/10.3390/aerospace10030205
Qu Z, Wang W, Xiao H, Xiao Y, Li G, Cui K. Influence of Non-Uniform Bluntness on Aerodynamic Performance and Aerothermal Characteristics of Waverider. Aerospace. 2023; 10(3):205. https://doi.org/10.3390/aerospace10030205
Chicago/Turabian StyleQu, Zhipeng, Wanyu Wang, Houdi Xiao, Yao Xiao, Guangli Li, and Kai Cui. 2023. "Influence of Non-Uniform Bluntness on Aerodynamic Performance and Aerothermal Characteristics of Waverider" Aerospace 10, no. 3: 205. https://doi.org/10.3390/aerospace10030205