本文建立了外力作用下流体流动和凝结过程的分子动力学模型.在蒸汽压力为3.7177 MPa时,模拟得到了不同外力条件下水蒸气凝结过程的流型,分别为环状流、射状流、塞状流、泡状流、带有小汽泡的液体流,模拟结果与相关文献中实验流型吻合较好.模拟发现水蒸气在0.3833 MPa压力下凝结时,出现一种新的波动流流型.最后对凝结过程中流型间转换机理进行了讨论.
参考文献
| [1] | H.Y. Wu;P. Cheng .Condensation flow patterns in silicon microchannels[J].International Journal of Heat and Mass Transfer,2005(11):2186-2197. |
| [2] | Xiaojun Quart;Ping Cheng;Huiying Wu .Transition from annular flow to plug/slug flow in condensation of steam in microchannels[J].International Journal of Heat and Mass Transfer,2008(3/4):707-716. |
| [3] | S. Krishnaswamy;H.S. Wang;J.W. Rose .Condensation from gas-vapour mixtures in small non-circular tubes[J].International Journal of Heat and Mass Transfer,2006(9/10):1731-1737. |
| [4] | Wei Zhang;Jinliang Xu;John R. Thome .Periodic bubble emission and appearance of an ordered bubble sequence (train) during condensation in a single microchannel[J].International Journal of Heat and Mass Transfer,2008(13/14):3420-3433. |
| [5] | Yue J;Luo LG;Gonthier Y;Chen GW;Yuan Q .An experimental investigation of gas-liquid two-phase flow in single microchannel contactors[J].Chemical Engineering Science,2008(16):4189-4202. |
| [6] | 刘朝,万黎明,刘娟芳,曾丹苓.高温高压湿空气的维里方程[J].工程热物理学报,2006(06):920-922. |
| [7] | Gyoko Nagayama;Takaharu Tsuruta;Ping Cheng .Molecular dynamics simulation on bubble formation in a nanochannel[J].International Journal of Heat and Mass Transfer,2006(23/24):4437-4443. |
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