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THEORETICAL SIMULATION OF TEMPERATURE DISTRIBUTION IN A GUN BARREL BASED ON THE DPL MODEL

机译:基于DPL模型的炮筒温度分布的理论模拟。

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In this paper, an exact closed form solution is introduced for the heat conduction equation in cylindrical coordinates under consecutive inner time dependent surface heat flux by both the Fourier and dual-phase-lag (DPL) models. The solution is used to calculate the temperature distribution in a gun barrel subjected to single and consecutive shoots, and the results are compared with literature. The parametrical study is done using the analytical solution to show the effect of shooting frequency which leads to different heat power from each fire shoot and temperature distribution. The result shows good ability of analytical solution for estimation of temperature distribution in the gun barrel, especially under consecutive shoots in which unexpected incidents such as barrel melting is so probable. The closed form solution can be applied for verification of other numerical works in this area.
机译:在本文中,通过傅里叶模型和双相滞后(DPL)模型,在连续的内部时间相关的表面热通量下,针对圆柱坐标系中的导热方程引入了精确的封闭形式解。该解决方案用于计算枪管在一次和连续射击后的温度分布,并将结果与​​文献进行比较。使用分析解决方案进行参数研究,以显示射击频率的影响,该频率导致每个火苗的热功率和温度分布不同。结果显示出良好的分析解决方案估算枪管内温度分布的能力,尤其是在连续射击中,枪管熔化等意外事件很可能发生。封闭形式的解决方案可以用于验证该领域中的其他数字作品。

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