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Effect of Laval Nozzle in the GAMMA 10 SMBI Experiments

机译:薰衣草喷嘴在γ10MBI实验中的影响

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Gas fueling by supersonic molecular beam injection (SMBI) has been performed at the central-cell in GAMMA 10. The results of SMBI experiment with plenum pressure from 0.3 MPa to 2.0 MPa were obtained using a laval nozzle. The distribution of the emission intensity during SMBI was investigated by the 2-dimensional image captured by the fast camera as an index of the neutral transport. The experimental results indicates that the effect of the laval nozzle reduces the dispersion of injected hydrogen molecules in the peripheral region. In this paper, we also studied the line density at the central-cell (NLcc) and Hα emission intensity during SMBI. Comparison between SMBI and conventional gas puffing is also discussed from the view point of the fueling efficiency.
机译:通过超音速分子束注射(SMBI)的气体燃料在γ10中进行了中央电池进行了。使用薰衣草喷嘴获得了来自0.3MPa至2.0MPa的增压器的SMBI实验的结果。通过快速相机捕获的二维图像作为中性传输的指标,研究了SMBI期间的发射强度的分布。实验结果表明,薰衣草喷嘴的效果降低了外周区域中注射氢分子的分散。在本文中,我们还在SMBI期间研究了中央电池(NLCC)和Hα发射强度的线密度。还从加油效率的观点讨论了SMBI和常规气体膨化之间的比较。

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