Application of computational fluid dynamics (CFD ) to the study of venturi-type geometries for hydrodynamic cavitation production
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Published:
Jun 11, 2020
Keywords:
Cavitation, Computational Fluid Dynamics, Water Purification
Main Article Content
Abstract
Cavitation is a hydrodynamic effect, represented in the release of high amounts of energy, the product of the abrupt depressurization of a fluid mass and causing highly interesting and beneficial phenomena in various fields of engineering, due to the multiple physical and chemical properties it presents. Taking into account the above, this research studied the effects that the different geometric (diameters, angles and lengths) and physical (pressure, speed and number of cavitation) parameters could have on the attainment of cavitation. This was done by simulating twelve different geometries (performed in AutoCAD) in the commercial software ANSYS Fluent 19.0. Finally, high cavitational activity was obtained when a type III geometry (length of 1 mm and divergent angle of 7.5o) is used under an initial pressure of 10 atmospheres.
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Torres, S., Figueredo, D., & Ramírez, C. (2020). Application of computational fluid dynamics (CFD ) to the study of venturi-type geometries for hydrodynamic cavitation production. Ingenio Magno, 10(2), 101-110. Retrieved from http://revistas.ustatunja.edu.co/index.php/ingeniomagno/article/view/1903
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Artículos Vol. 10-2
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Ferziger, J., & Peric, M. (2002). Computational Methods for Fluid Dynamics. New York: Springer-Verlag. https://doi.org/10.1007/978-3-642-97651- 3_1
Jain, T., Carpenter, J., & Saharan, V. K. (2014). CFD Analysis and Optimization of Circular and Slit Venturi for Cavitational Activity. Journal of Material Science and Mechanical Engineering, 1(1), 28–33
Brennen, C. (1995). Cavitation and bubble dynamics. New York: Oxford University Press. https://doi.org/10.1017/CBO9781107338760
Brennen, C. (2005). Fundamentals of multiphase flow. New York: Cambridge University Press. https://doi.org/10.1017/CBO9780511807169
Charrière, B., Decaix, J., & Goncalvès, E. (2015). A comparative study of cavitation models in a Venturi flow. European Journal of Mechanics, B/Fluids, 49(PA), 287–297. https://doi.org/10.1016/j.euromechflu.2014.10.003
Kuldeep, & Saharan, V. K. (2016). Computational study of different venturi and orifice type hydrodynamic cavitating devices. Journal of Hydrodynamics, 28(2), 293–305. https://doi.org/10.1016/S1001-6058(16)60631-5
Bashir, T. A., Soni, A. G., Mahulkar, A. V., & Pandit, A. B. (2011). The CFD driven optimisation of a modified venturi for cavitational activity. Canadian Journal of Chemical Engineering, 89(6), 1366–1375. https://doi.org/10.1002/cjce.20500
Yi, C., Lu, Q., Wang, Y., Wang, Y., & Yang, B. (2018). Degradation of organic wastewater by hydrodynamic cavitation combined with acoustic cavitation. Ultrasonics Sonochemistry, 43, 156–165. https://doi.org/10.1016/J.ULTSONCH.2018.01.013
Gągol, M., Przyjazny, A., & Boczkaj, G. (2018). Wastewater treatment by means of advanced oxidation processes based on cavitation – A review. Chemical Engineering Journal, 338, 599–627. https://doi.org/10.1016/J.CEJ.2018.01.049
Carpenter, J., Badve, M., Rajoriya, S., George, S., Saharan, V. K., & Pandit, A. B. (2016). Hydrodynamic cavitation: An emerging technology for the intensification of various chemical and physical processes in a chemical process industry. Reviews in Chemical Engineering, 33(5), 433–468. https://doi.org/10.1515/revce-2016-0032
Tukimin, A., Zuber, M., & Ahmad, K. A. (2016). CFD analysis of flow through Venturi tube and its discharge coefficient. IOP Conference Series: Materials Science and Engineering, 152(1). https://doi.org/10.1088/1757-899X/152/1/012062
Simpson, A., & Ranade, V. V. (2018). Modelling of hydrodynamic cavitation with orifice: Influence of different orifice designs. Chemical Engineering Research and Design, 136, 698–711. https://doi.org/10.1016/j.cherd.2018.06.014
He, N., & Zhao, Z. (2010). Theoretical and numerical study of hydraulic characteristics of orifice energy dissipator. Water Science and Engineering, 3(2), 190–199. https://doi.org/10.3882/j.issn.1674-2370.2010.02.007
Ai, W., & Ding, T. (2010). Orifice plate cavitation mechanism and its influencing factors. Water Science and Engineering, 3(3), 321–330. https://doi.org/10.3882/j.issn.1674-2370.2010.03.008
Nurick, W. H. (1976). Orifice Cavitation and Its Effect on Spray Mixing. Journal of Fluids Engineering, 98(4), 681. https://doi.org/10.1115/1.3448452
Saharan, V. K., Rizwani, M. A., Malani, A. A., & Pandit, A. B. (2013). Effect of geometry of hydrodynamically cavitating device on degradation of orange-G. Ultrasonics Sonochemistry, 20(1), 345–353. https://doi.org/10.1016/j.ultsonch.2012.0 8.011
Ferziger, J., & Peric, M. (2002). Computational Methods for Fluid Dynamics. New York: Springer-Verlag. https://doi.org/10.1007/978-3-642-97651- 3_1
Jain, T., Carpenter, J., & Saharan, V. K. (2014). CFD Analysis and Optimization of Circular and Slit Venturi for Cavitational Activity. Journal of Material Science and Mechanical Engineering, 1(1), 28–33