Penetration and Dispersion of Transient Gas Jets and Sprays
Penetration and Dispersion of Transient Gas Jets and Sprays
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DOI：
10.1080/00102209708935747
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发表时间：
1997-12
影响因子：
1.9
通讯作者：
V. Iyer;J. Abraham
中科院分区：
文献类型：
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作者：
V. Iyer;J. Abraham
摘要 给出了用于表示注入恒定体积室的轴对称非汽化和汽化喷雾的瞬态行为的数值计算结果。这些结果与汽化喷雾实验的结果进行了比较，在汽化喷雾实验中，对于相同的质量和动量流量，研究了室密度对喷雾穿透和扩散角的影响。结果表明，此处采用的实际数值分辨率似乎不够充分，因此结果不一致。从喷雾的数值角度来看，更高的分辨率是不切实际的。因此，目前的工作进一步探讨了可以以高分辨率计算的气体射流在穿透和分散角方面是否与喷雾相当。对于每个气体射流计算，相应气体射流计算中的注入质量和动量流量以及室密度保持与喷雾实验中的相同。比较表明，气体...
Abstract Results from numerical computations performed to represent the transient behavior of axisymmetric non-vaporizing and vaporizing sprays injected into a constant volume chamber are presented. These results are compared with those from vaporizing spray experiments where, for the same mass and momentum flow rates, the effect of chamber density on spray penetration and dispersion angle was studied. It is shown that with the practical numerical resolution employed here, which appears to be inadequate, the results do not agree. Higher resolution is impractical from a numerical point of view for sprays. Hence, the present work further explores whether gas jets, which may be computed with a high resolution, are comparable to the sprays in terms of penetration and dispersion angle. For each gas jet computation, the injected mass and momentum flow rates and the chamber density in the corresponding gas jet computations are maintained the same as those in the spray experiments. Comparisons show that the gas j...