@inproceedings{ba7e1e809d404bf3b91e76028a10e3a2,
title = "Investigation of flow resistance in microchannels with a sudden contraction or expansion using DSMC",
abstract = "Nitrogen gas flow in two-dimensional microchannels with a sudden contraction or expansion is simulated by direct simulation Monte Carlo (DSMC) method in both slip and transition regimes. The resistance coefficient is calculated and compared with that for conventional-scale channels. It is found that the resistance coefficient for microchannels differs from that for conventional-scale channels in two aspects. One is the resistance coefficient for microchannels is much smaller and the divergence between microchannels and conventionalscale channels increases with the increase of Knudsen number. For the cases considered in this paper, the coefficients for microchannels are about 5\% to 61\% of those for conventionalscale channels. On the other hand, the resistance coefficient for microchannels is more sensitive to the expansion ratio of channels, especially when the expansion ratio is less than 3.",
keywords = "DSMC, Microchannel, Resistance coefficient, Sudden contraction, Sudden expansion",
author = "Xiaohong Yan and Qiuwang Wang and Xiaona Suo and Yining Wu",
year = "2008",
doi = "10.1115/MNHT2008-52172",
language = "英语",
isbn = "0791842924",
series = "2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008",
pages = "715--721",
booktitle = "2008 Proceedings of the ASME Micro/Nanoscale Heat Transfer International Conference, MNHT 2008",
note = "1st ASME Micro/Nanoscale Heat Transfer International Conference, MNHT08 ; Conference date: 06-01-2008 Through 09-01-2008",
}