不同工况大落差管道不满流现象的模拟研究

Simulation of Slack Line Phenomena in the BigDrop Pipeline under the Different Conditions

关键词: 成品油, 大落差, 不满流, 输油管道, 数值模拟

If product oil pipelines were constructed in the areas of complex topography, parts of pipelines would inevitably encounter some problems via the large gap areas. Due to the existence of pipeline crossing point and the physical difference of the transport oil, it may appear the phenomenon of slack flow in the downhill pipeline. According to all kinds of operating conditions, it may appear via the large gap areas. Based on VOF multiphase flow model numeral simulation was built to research the influence of slack flow features for different angles, different pipe diameters and flow velocity. Through the computer analysis, it elaborated the influence factors of the discontent flow phenomenon for product oil in a large gap location. The results provided theoretical guidance for the design of transport pipeline in mountainous areas.

10.3696/j.issn.1672-6952.2015.01.010