在气液无滑移假设下建立了天然气超音速凝结数理模型,研究了天然气中水蒸气的超音速凝结过程,并分析了Laval喷管扩张段半扩张角对凝结的影响.结果表明凝结模型是合理的,液滴成核只发生在喷管喉部后非常狭窄的区域,此后水滴的生长变得非常缓慢,直至喷管出口不再发生显著的增加;喷管半扩张角的大小对液滴的成核、生长有显著影响,成核位置随半扩张角的增加略向上游移动;喷管扩张段0.16°半扩张角在总压损失、出口马赫数、出口液滴尺寸等方面具有最佳的综合效果.
参考文献
[1] | L M Brouwer;H D Epsom.Twister Supersonic Gas Conditioning or Unmanned Platforms and Subsea Gas Processing[M].Offshore Europe,Aberdeen UK,2003:2-5. |
[2] | Emmons H W.Fundamentals of Gas Dynamics[M].Princeton,New Jersey:Princeton University Press,1958 |
[3] | Kiril A. Streletzky;Yury Zvinevich;Barbara E.Wyslouzil;Reinhard Strey .Controlling nucleation and growth of nanodroplets in supersonic nozzles[J].The Journal of Chemical Physics,2002(10):4058-4070. |
[4] | Moore M J;Waiters P T;Crane R I et al.Predicting the Fog-Drop Size in Wet-Steam Turbines[J].IME Conference Publication,1973,3:101-109. |
[5] | Lamanna G.On Nucleation and Droplet Growth in Condensing Nozzle Flows[M].Eindhoven:Technische Universiteit Endhoven,Proefschrift,2000 |
[6] | Luijten C C M.Nucleation and Droplet Growth at High Pressure[M].Eindhoven:Technische Universiteit Endhoven,Proefschrift,1998 |
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