Prediction for the Pressure Drop of Gas-Liquid Cylindrical Cyclone in Sub-Sea Production System
With the rapid development of subsea oil and gas exploitation, the demand for the related underwater process equipment is increasing fast. In order to reduce the energy consuming, people tend to separate the gas and oil phase directly on the seabed. Accordingly, an advanced separator is needed. In this paper, the pressure drop of a new type of separator named Gas Liquid Cylindrical Cyclone (GLCC) which is used in the subsea system is investigated by both experiments and numerical simulation. In the experiments, the single phase flow and gas-liquid two phase flow in GLCC were tested. For the simulation, the performance of GLCC under both laboratory and industrial conditions was calculated. The Eulerian model was implemented to describe the mixture flow field in the GLCC under experimental conditions and industrial oil-natural gas conditions. Furthermore, a relationship among Euler number (Eu), Reynolds number (Re), and Froude number (Fr) is generated according to similarity analysis and simulation data, which can present the GLCC separation performance of pressure drop. These results can give reference to the design and application of GLCC in deep sea.
 J. Volckens and T. M. Peters, "Counting and particle transmission efficiency of the aerodynamic particle sizer," Journal of Aerosol Science, vol. 36, pp. 1400-1408, 2005.
 D. F. Bergman, M. R. Tek, and D. L. V. Katz, Retrograde condensation in natural gas pipelines: American Gas Association, 1975.
 R. Hreiz, R. Lainé, J. Wu, C. Lemaitre, C. Gentric, and D. Fünfschilling, "On the effect of the nozzle design on the performances of gas–liquid cylindrical cyclone separators," International Journal of Multiphase Flow, vol. 58, pp. 15-26, 2014.
 G. E. Kouba, O. Shoham, and S. Shirazi, "Design and performance of gas-liquid cylindrical cyclone separators," in Proceedings of the BHR Group 7th International Meeting on Multiphase Flow., Cannes, France, 1995, pp. 307-327.
 D. Farchi, "A study of Mixers and Separators for Two-phase flow in MHD Energy Conversion Systems," MS Thesis (in Hebrew), Ben-Gurion University, Israel, 1990.
 S. Movafaghian, J. Jaua-Marturet, R. S. Mohan, O. Shoham, and G. Kouba, "The effects of geometry, fluid properties and pressure on the hydrodynamics of gas–liquid cylindrical cyclone separators," International Journal of Multiphase Flow, vol. 26, pp. 999-1018, 2000.
 F. M. Erdal and S. A. Shirazi, "Effect of the inlet geometry on the flow in a cylindrical cyclone separator," Journal of Energy Resources Technology, vol. 128, pp. 62-69, 2006.
 F. M. Erdal, S. A. Shirazi, O. Shoham, and G. E. Kouba, "CFD simulation of single-phase and two-phase flow in gas-liquid cylindrical cyclone separators," SPE Journal, vol. 2, pp. 436-446, 1997.
 R. Hreiz, C. Gentric, and N. Midoux, "Numerical investigation of swirling flow in cylindrical cyclones," Chemical engineering research and design, vol. 89, pp. 2521-2539, 2011.
 A. J. Meléndez-Ramírez, M. A. Reyes-Gutiérrez, L. R. Rojas-Solórzano, J. C. Marín-Moreno, and J. Colmenares, "Experimental Study of a Gas-Liquid Cylindrical Cyclone Separator Performance," in ASME 2004 International Mechanical Engineering Congress and Exposition, 2004, pp. 755-761.
 F. Kaya and I. Karagoz, "Performance analysis of numerical schemes in highly swirling turbulent flows in cyclones," Current science, pp. 1273-1278, 2008.