Effects of Wire-Wrapping Patterns and Low Temperature on Combustion of Propellant Embedded with Metal Wire
Abstract
:1. Introduction
2. Experimental Methodology
3. Results and Discussions
3.1. Thermal Reactivity
3.2. Ignition Delay and Burning Rate
3.3. Condensed Combustion Products
3.4. Effect of Low Temperature
3.5. Numerical Model and Model Calculation
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Sample | Quantity | Wire Diameter (mm) | Twisted around the Distance (mm) | Surface Area of Silvered Wire per Unit Length of Propellant (mm2·mm−1) | Surface-Volume Ratio (mm2·mm−3) |
---|---|---|---|---|---|
No silver wire(G1) | 0 | - | - | - | - |
A piece of silver(G2) | 1 | 0.25 | - | 0.78 | 16 |
twisted sparsely(G3) | 2 | 0.25 | 100 | 1.56 | 16 |
twisted tightly(G4) | 2 | 0.25 | 50 | 1.56 | 16 |
Sample | TG | DTG | |||
---|---|---|---|---|---|
Ti | Te | MC | Tp | Lmax | |
G1 | 132.53 | 306.18 | −102.79 | 302.61 304.35 305.53 | 2.624 −65.21 6.58 |
G2 | 132.53 | 312.72 | −89.66 | 309.11 311.75 | −18.63 4.08 |
G3 | 132.93 | 316.32 | −75.26 | 314.65 315.26 | −11.53 1.66 |
G4 | 133.15 | 317.43 | −75.82 | 314.97 316.07 | −11.52 1.66 |
Sample | Exotherm Peak | |||
---|---|---|---|---|
Tp | Ti | Te | Q | |
G1 | 234.69 274.88 305.29 1127.01 | 197.97 241.38 288.93 1069.2 | 241.38 288.93 320.47 1150.13 | 9.17 60.66 54.83 5.95 |
G2 | 228.92 274.31 323.58 660.32 1131.62 | 193.93 243.28 313.06 650.43 1072.54 | 243.28 289.58 338.73 667.61 1180.14 | 10.73 79.23 156.21 −3.12 23.18 |
G3 | 226.37 277.13 317.78 1107.14 | 197.98 241.21 292.77 1073.21 | 241.21 292.77 337.36 1188.12 | 7.38 69.11 222.80 16.16 |
G4 | 225.62 279.13 314.72 1109.28 | 198.43 239.31 291.76 1071.43 | 242.26 295.77 335.36 1186.22 | 8.18 64.51 224.88 18.42 |
Sample | Stable Burning Length (mm) | Burning Time (ms) | Burning Rate (mm·s−1) |
---|---|---|---|
G1-1Mpa (20 °C) | 19.8 | 1.01404 (±0.021) | 30.52585 (±1.37) |
G1-6Mpa (20 °C) | 19.9 | 0.425347 (±0.021) | 46.78532 (±2.1) |
G1-1Mpa (−40 °C) | 20.1 | 1.487254 (±0.02) | 28.51484 (±1.17) |
G1-6Mpa (−40 °C) | 20.1 | 0.47197 (±0.019) | 42.58747 (±1.73) |
G2-1Mpa (20 °C) | 19.6 | 0.360963 (±0.019) | 54.29926 (±2.85) |
G2-6Mpa (20 °C) | 20 | 0.199135 (±0.021) | 100.4343 (±3.16) |
G2-1Mpa (−40 °C) | 20 | 0.437582 (±0.02) | 45.70569 (±1.99) |
G2-6Mpa (−40 °C) | 19.5 | 0.205006 (±0.021) | 95.11936 (±3.45) |
G3-1Mpa (20 °C) | 19.7 | 0.459847 (±0.019) | 42.84031 (±1.78) |
G3-6Mpa (20 °C) | 19.8 | 0.234779 (±0.021) | 84.33481 (±2.62) |
G3-1Mpa (−40 °C) | 19.8 | 0.486627 (±0.022) | 40.68823 (±1.60) |
G3-6Mpa (−40 °C) | 20.1 | 0.221692 (±0.021) | 90.66646 (±2.50) |
G4-1Mpa (20 °C) | 20.1 | 0.232092 (±0.02) | 86.60375 (±2.87) |
G4-6Mpa (20 °C) | 20.2 | 0.175069 (±0.019) | 115.383 (±3.82) |
G4-1Mpa (−40 °C) | 19.5 | 0.256719 (±0.02) | 75.95843 (±1.48) |
G4-6Mpa (−40 °C) | 19.9 | 0.192009 (±0.019) | 103.6408 (±3.77) |
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Wu, Q.; Zhao, J.; Ren, Q. Effects of Wire-Wrapping Patterns and Low Temperature on Combustion of Propellant Embedded with Metal Wire. Aerospace 2024, 11, 639. https://doi.org/10.3390/aerospace11080639
Wu Q, Zhao J, Ren Q. Effects of Wire-Wrapping Patterns and Low Temperature on Combustion of Propellant Embedded with Metal Wire. Aerospace. 2024; 11(8):639. https://doi.org/10.3390/aerospace11080639
Chicago/Turabian StyleWu, Qiu, Jiangong Zhao, and Quanbin Ren. 2024. "Effects of Wire-Wrapping Patterns and Low Temperature on Combustion of Propellant Embedded with Metal Wire" Aerospace 11, no. 8: 639. https://doi.org/10.3390/aerospace11080639