Thesis
Numerical study of a mixing flow of gas and liquid in hydrocyclone
Master of Science (M.S.), Drexel University
Jun 2017
DOI:
https://doi.org/10.17918/etd-7445
Abstract
Hyrocyclones are commonly used for the separation of minerals from the mixture of liquid and suspended solids such as in the mixture of water and sand. In the present study, the hydrocyclone consisted of two different inlets such as liquid inlet and gas inlet and one outlet for the mixture of liquid and gas, and its geometry includes two different scales of reactor dimensions. Introducing gas while the hydrocyclone was in operation brought a new understanding of the hydrocyclone study. The optimization of the hydrocyclone operation for different gas flow rates and different water pressures was conducted in order to learn the effect of such different parameters on the vortex generation inside the hydrocyclone. These different parameters were used as the boundary conditions for the present numerical simulation and have impacted on the magnitudes of pressure, fraction, velocity streamlines, tangential velocity and axial velocity field distributions. All the simulations given in the present study were calculated with Fluent of the ANSYS 17.2 package program. k-[epsilon] model was applied for all the calculations with the volume of fluid (VOF) algorithm with no-slip conditions. The numerical study resulted in the results in six different cases with the combination of two sets of boundary conditions of 3 cfm, 9 cfm, 12 cfm, 15 cfm with 1psi gas inlet flow rates; and 100 gpm and 20 gpm with 15 psi, 20 psi and 25 psi water inlet pressures. Changing the gas flow rates with a constant water pressure had a significant impact on the vortex generation inside the hydrocyclone. However, changing the water inlet pressures with a constant gas flow rate did not have any effect on the development of the swirl flow inside the hydrocyclone.
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Details
- Title
- Numerical study of a mixing flow of gas and liquid in hydrocyclone
- Creators
- Abdurrahman Yilmaz - DU
- Contributors
- Young I. Cho (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Number of pages
- x, 52 pages
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- College of Engineering (1970-2026); Mechanical Engineering (and Mechanics) (1970-2026); Drexel University
- Other Identifier
- 7445; 991014632197104721