کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
234752 465438 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Strongly swirling flows in a cylindrical separator
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Strongly swirling flows in a cylindrical separator
چکیده انگلیسی

This paper describes a numerical study of two-phase, strongly swirling flow in a cylindrical separator with double vortex generators to predict the separation efficiency of a mixture consisting of oil as the primary phase and sand, with a specific diameter, as the secondary phase. The mixture-granular multiphase and RNG k–ε turbulence models are implemented in this study. The analytical predictions are compared against experimental data; i.e., the mean tangential velocity and the mean radial pressure profiles. The overall agreement between the experimental data and the predictions obtained with the RNG k–ε model are reasonably good. The numerical procedure has the ability to capture a narrow localized residence zone for the solid particles at a periphery location near the mid-separator where the two vortices merge and the suspension process occurs. Moreover, the analysis has proven to be useful in predicting the internal flow structure of the primary phase, thereby, the separation of the particulate phase. The separated particles are forced to remain near the periphery of the cylindrical separator and being concentrated at the mid-separator as a result of the strong centrifugal force.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Minerals Engineering - Volume 21, Issue 5, April 2008, Pages 366–372
نویسندگان
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