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通过数值方法模拟了二级轻气炮的发射性能,计算考虑真实气体影响,摩擦和传热损失,用一维非定常流动的特征线理论对储气室、压缩管和发射管中的气流以及活塞和模型的运动规律进行了详细地数值模拟,得到的结果与欧共体联合聚变中心(Joint European Torus)的二级轻气炮的实验数据相比,吻合很好。
The emission performance of a two-stage light gas gun is simulated numerically. The effects of real gas, friction and heat transfer are considered. The characteristics of one-dimensional unsteady flow are used to analyze the gas flow in the gas storage chamber, the compression tube and the launch tube. The detailed numerical simulations of the movement of the piston and the model were carried out and the results were in good agreement with the experimental data of the second-level light-gas gun at the Joint European Torus.