A STUDY OF THE ATOMIZATION PROCESS USING NUMERICAL SIMULATION

Autores

  • Artur Elias de Morais Bertoldi
  • Erlan Rodrigo de Souza Cassiano UnB
  • José Gustavo Coelho UnB
  • Francisco Aurilo Azevedo Pinho UnB
  • Carlos Alberto Gurgel Veras UnB

DOI:

https://doi.org/10.26512/ripe.v2i5.21241

Palavras-chave:

Numerical simulation, CFD analysis, Oxidizer injection profile, Spray semi-angle

Resumo

The liquid droplets atomization process plays an important role in several industrial processes and in many aspects of the combustion engines performance, gas turbines, diesel engines and rocket motors. The use of Computational Fluid Dynamics (CFD) to study the atomization process is relatively new and this work studies the atomization spray field using pressure swirl atomizers and the computation simulations was done by the using of the commercial software CFX 15. The parameter analyzed was the semi-angle of the spray. Particles were placed at the entrance and different settings for the primary and secondary breakup were studied. Two models for the primary breakup (BLOB and LISA models) were tested and two other for the secondary breakup (Reitz and Diwakar model and TAB model). The numerical results were compared with experimental data and showed acceptable compatibility.

Downloads

Não há dados estatísticos.

Referências

Ansys CFX-Solver Theory Guide, 2012.

Bertoldi, A.E.M, Avaliação Experimental da Queima de Parafina e Óxido Nitroso em Motores Híbridos, Dissertação de mestrado, Universidade de Brasília, 115p. 2007, in portugue.

Bhatt Y., Arora D., Shaw R. and Golubev V., Numerical Simulations and Perforance Comparison of Air-Blast and Pressure Jet Atomizers, AIAA 2001-277, 49th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Explosition, 4-7 January 2001, Orlando, Florida.

Brinckman, Hosangadi, Ahuda, Dash and Felman, A CFD Methodology for Liquid Jet Breakup and Vaporization Predictions in Compressible Flows, AIAA Paper N° 2008-1023.

Culick, F.E.C., Yang, V., Overview if Combustion Instabilities in Liquid-Propellant Rocket Engines, In: Liquid Rocket Engine Combustion Instability, Zarchan, P., editor-in-chief, Progress in Astronautics and Aeronautics, American Institute of Aeronautics and Astronautics, Vol. 169, 1995.

Fung, M.C., Inthavong K., Yang W., and Tu J., External Characteristic of Spray Atomization From a Nasal Spray Device, Seventh International Conference on CFD in the Minerals and Process Industries, CSIRO, Melbourne, Australia, 9-11, December, 2009.

Fung, M.C., Inthavong K., Yang W., and Tu J., Experimental and numerical modeling of nasal spray atomisation, Ninth International Conference on CFD in the Minerals and Process Industries, CSIRO, Melbourne, Australia, 10-12, December, 2012.

Lacava, P. T., Bastos-Netto, D., Pimenta, A. P., Design Procedure and Experimental Evaluation of Pressure Swirl Atomizers, 24° International Congress of the Aeronautical Sciences, ICAS 2004.

Solanki, S. A., Patel, D. R., and Parikh K. B., Numerical Models of Diesel Spray Characteristics as Secoundary Break up Stare, International Journal of Advanced Engineering Research and Studies, IJAERS, Vol. II, Issue III, April-June, 2013/01-04.

Wu. P.K., Hsiang, L.P., Faeth. G.M., Aerodynamic Effects on Primary and Secondary Spray Breakup, In: Liquid Rocket Engine Combustion Instability, Zarchan, P., editor-in-chief, Progress in Astronautics and Aeronautics, American Institute of Aeronautics and Astronautics, Vol. 169, 1995.

Downloads

Publicado

2017-08-22

Como Citar

Bertoldi, A. E. de M., Cassiano, E. R. de S., Coelho, J. G., Pinho, F. A. A., & Veras, C. A. G. (2017). A STUDY OF THE ATOMIZATION PROCESS USING NUMERICAL SIMULATION. Revista Interdisciplinar De Pesquisa Em Engenharia, 2(5), 67–74. https://doi.org/10.26512/ripe.v2i5.21241

Edição

v. 2 n. 5 (2016): ADVANCES IN MODELLING AND SIMULATION OF WIND SYSTEMS AND ANALYSING AND DESIGN OF OFFSHORE SYSTEMS

Seção

Artigos

Licença

Autores que publicam nesta revista concordam com os seguintes termos:

Autores mantém os direitos autorais e concedem à revista o direito de primeira publicação, sendo o trabalho simultaneamente licenciado sob a Creative Commons Attribution License o que permite o compartilhamento do trabalho com reconhecimento da autoria do trabalho e publicação inicial nesta revista.

Autores têm autorização para assumir contratos adicionais separadamente, para distribuição não-exclusiva da versão do trabalho publicada nesta revista (ex: publicar em repositório institucional ou como capítulo de livro), com reconhecimento de autoria e publicação inicial nesta revista.

Autores têm permissão e são estimulados a publicar e distribuir seu trabalho online (ex: em repositórios institucionais ou na sua página pessoal) a qualquer ponto antes ou durante o processo editorial, já que isso pode gerar alterações produtivas, bem como aumentar o impacto e a citação do trabalho publicado.