کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7060434 | 1458512 | 2014 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flow structure and phase distribution in stratified and slug flows measured by X-ray tomography
ترجمه فارسی عنوان
ساختار جریان و توزیع فاز در جریان های طبقه بندی شده و شبیه سازی شده توسط توموگرافی اشعه ایکس اندازه گیری شده است
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کلمات کلیدی
ساختار جریان، توزیع فاز، توموگرافی اشعه ایکس، جذب گاز، جریان سه فاز،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Flow structures and phase distributions in two- and three-phase stratified and slug flows were studied with a fast-response X-ray tomography system. A large number of experiments were carried out in a 25Â m long near-horizontal pipeline with an internal diameter of 100Â mm. A dense gas, SF6, was used to simulate the gas phase in high-pressure gas-condensate pipelines. Detailed measurements of the flow were made with the X-ray system at various superficial velocities, two different pressures (4 and 7.2 bara, giving gas densities of 24 and 42Â kg/m3, respectively), and three different inclination angles: 0, +1 and +5 degrees. Both qualitative observations and quantitative measurements were obtained which illustrate the different types of interface structure and fluid flow behaviour. The detailed measurements have also been used to obtain a more reliable correlation for predicting the fraction of gas bubbles entrained in the liquid layer in turbulent stratified gas-liquid flows. The measurements in three-phase slug flows reveal interesting phenomena regarding the interactions of the oil-water and gas-oil interfaces. Depending on the flow conditions, the oil-water interface can sometimes decouple from the gas-liquid interface, leading to oil-dominated slugs flowing on top of a water layer of nearly constant thickness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Multiphase Flow - Volume 67, Supplement, December 2014, Pages 162-179
Journal: International Journal of Multiphase Flow - Volume 67, Supplement, December 2014, Pages 162-179
نویسندگان
Bin Hu, Morten Langsholt, Lan Liu, Peter Andersson, Chris Lawrence,