| Analysis of Heat Transfer in Actively Cooled Compound Gun Barrel |
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| 作者姓名： | 吴斌 夏伟 |
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| 作者单位： | [1]DepartmentofMilitaryEngineering,ArtilleryAcademy,HefeiAnhui230031,China [2]CollegeofMechanicalEngineering,SouthChinaUniversityofTechnology,GuangzhouGuangdong510640,China |
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| 摘 要： | when a gun fires, a large amount of heat is brought in the barrel. Erosion/wear and security problems(self ignition of the propellant) associated with this high thermal energy have to be solved owing to the use of higher combustion gas temperature for improved cannon performance and firing at the sustained high rates, Barrel cooling technologies are the effective measures for addressing this issue, In view of the importance of having knowledge of the heat flux, an approach to calculate heat flux based on measurements was presented and validated. The calculated heat flux is used as the inner boundary condition for modeling heat transfer in a 155 mm mid-wall cooled compound gun barrel, Theoretical analysis and simulated results show that natural air cooling is dramatically slower than the forced liquid mid-wall cooling, accordingly wear life of actively cooled barrel is increased and barrel overheating is prevented,
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| 关 键 词： | 热转换 主动冷却 磨损性质 炮管腐蚀 |
Analysis of Heat Transfer in Actively Cooled Compound Gun Barrel |
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| WU Bin,XIA Wei.Analysis of Heat Transfer in Actively Cooled Compound Gun Barrel[J].Journal of China Ordnance,2005,1(1):29-36. |
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| Authors: | WU Bin XIA Wei |
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| Abstract: | when a gun fires, a large amount of heat is brought in the barrel. Erosion/wear and security problems(self ignition of the propellant) associated with this high thermal energy have to be solved owing to the use of higher combustion gas temperature for improved cannon performance and firing at the sustained high rates. Barrel cooling technologies are the effective measures for addressing this issue. In view of the importance of having knowledge of the heat flux, an approach to calculate heat flux based on measurements was presented and validated. The calculated heat flux is used as the inner boundary condition for modeling heat transfer in a 155 mm mid-wall cooled compound gun barrel. Theoretical analysis and simulated results show that natural air cooling is dramatically slower than the forced liquid mid-wall cooling, accordingly wear life of actively cooled barrel is increased and barrel overheating is prevented. |
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| Keywords: | gun barrel active cooling heat transfer Gun Barrel Compound Heat Transfer life increased overheating Theoretical analysis simulated results show natural air cooling liquid used inner boundary condition modeling heat transfer compound |
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