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Subject: Core annular flow O&G Речь идет об уменьшении силы трения для транспортировки тяжелой нефти.Friction Reduction Methods: core annular flow, friction reduction agents. |
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http://www.math.vt.edu/people/jie/CoreAnnul/core.html http://www.ichmt.org/abstracts/MFTP-2000/abstracts/17.pdf The annular pattern formed by two immiscible liquids of very different viscosities flowing together in a pipe, where the thicker fluid is placed at the center and the other one occupies the annulus (also called 'core annular flow') has found important applications in the transportation of viscous oils in horizontal pipes, through the addition of small quantities of a thinner fluid (usually water). Наружный кольцевой канал/поток? |
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