Aplicação da dinâmica dos fluidos computacionais (CFD ) ao estudo das geometrias venturi-tipo para produção decavitação hidrodinâmica
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Publicado:
Jun 11, 2020
Palavras-chave:
Cavitation, Computational Fluid Dynamics, Water Purification
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Resumo
A cavitação é um efeito hidrodinâmico, representado na liberação de altas quantidades de energia, produto da abrupta despressurização de uma massa fluida e causando fenômenos extremamente interessantes e benéficos em diversos campos da engenharia, devido às múltiplas propriedades físicas e químicas que apresenta. Levando-se em conta o acima, esta pesquisa estudou os efeitos que os diferentes parâmetros geométricos (diâmetros, ângulos e comprimentos) e físicos (pressão, velocidade e número de cavitação) poderiam ter sobre a realização da cavitação. Isso foi feito simulando doze geometrias diferentes (realizadas no AutoCAD) no software comercial ANSYS Fluent 19.0. Finalmente, a alta atividade cavitacional foi obtida quando uma geometria tipo III (comprimento de 1 mm e ângulo divergente de 7,5o) é usada sob uma pressão inicial de 10 atmosferas.
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Torres, S., Figueredo, D., & Ramírez, C. (2020). Aplicação da dinâmica dos fluidos computacionais (CFD ) ao estudo das geometrias venturi-tipo para produção decavitação hidrodinâmica. Ingenio Magno, 10(2), 101-110. Recuperado de http://revistas.ustatunja.edu.co/index.php/ingeniomagno/article/view/1903
Seção
Artículos Vol. 10-2
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Por medio del presente documento, certifico(amos) que el artículo que se presenta para posible publicación en la revista institucional INGENIO MAGNO del Centro de Investigaciones de Ingeniería Alberto Magno CIIAM de la Universidad Santo Tomás, seccional Tunja, es de mi (nuestra) entera autoría, siendo su contenido producto de mi (nuestra) directa contribución intelectual y aporte al conocimiento.
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Referências
Instituto de hidrología, meteorología y estudios ambientales. (2015). Estudio nacional del agua 2014. Bogotá: IDEAM.
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
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