fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

Artigo - Open Access.

Idioma principal

REDUCING COMPUTATIONAL TIME IN TURBULENT JET MODELLING FOR GAS DISPERSION SIMULATION

FERREIRA JR, E. S.; FERREIRA, T.; VIANNA, S. S. V.;

Artigo:

The CFD model combines transport phenomena and numerical mathematics to solve physical problems. Although numerical modelling of flow scenarios is the cutting edge of flow modelling, there seems to be room for improvement. This paper proposes an approach for enhancing computation of turbulent jet as far as processing time is concerned. The methodology is based on an equivalent diameter and velocity profile calculated downstream the jet orifice. The novel model DESQr (Diameter of Equivalent Simulation for Quick Run) shows good agreement with experimental data and a significant computational time reduction is observed. Findings are also compared with commercial (ANSYS CFX) CFD tool.

Artigo:

Palavras-chave:

DOI: 10.5151/chemeng-cobeq2014-1710-17942-151550

Referências bibliográficas
  • [1] BENINTENDI, R.; Turbulent jet modeling for hazardous area classification, J. of Loss Prev. in the Proc. Ind., v. 23, p. 373-378, 2010.
  • [2] BIRCH, A. D.; HUGHES, D. J.; and SWAFFIELD, F. Velocity Decay of High Pressure Jets. Combust. Sci. and Technol., v. 52, p. 161-171, 1987.
  • [3] CHUECH, S. G.; LAI, M. C.; FAETH, G.M.F. Structure of Turbulent Sonic Underexpanded Free Jets, Aiaa J., v. 27, No. 5, May 1989, pp. 549-559.
  • [4] FERREIRA Jr, E. S.; VIANNA, S. S. V. A Novel Free and Advanced Large Eddy Simulation Computational Fluid Dynamics Tool for Gas Dispersion, Int. J. of Model. and Simul. for the Pet. Ind., Submitted, 201
  • [5] MATULKA, A.; LÓPEZ, P.; REDONDO, J. M.; TARQUIS A. On the entrainment coefficient in a forced plume: quantitative effects of source parameters, J. Eur. Geoscience Union., v. 21, p. 269–278, 2014.
  • [6] MCGRATTAN, K.; HOSTIKKA S., FLOYD J., BAUM H., REHM R., MCDERMOTT, W. M. R. Fire dynamics simulator (version 5) Technical Reference Guide, April 2010.
  • [7] MCGRATTAN, K.; MCDERMOTT, R.; HOSTIKKA, S.; FLOYD, J. Fire dynamics simulator (version 5) User guide, NIST Special Publication 1019-5, April 2010.
  • [8] SCHEFER R. W.; HOUF H.G.; WILLIAMS T.C.; BOURNE B.; COLTON J. Characterization of high-pressure, under-expanded hydrogen-jet flames. Int. J. of Hydrogen Energy, v. 32(13), p. 2081-2093, 2007.
  • [9] TATE, P. M. The rise and dilution of buoyant jets and their behaviour in an internal wave field, Ph.D. thesis, University of New South Wales, Sydney, Australia, 2002.
  • [10] Área temática: Fenômenos de Transporte e Sistemas Particulados 6
Como citar:

FERREIRA JR, E. S.; FERREIRA, T.; VIANNA, S. S. V.; "REDUCING COMPUTATIONAL TIME IN TURBULENT JET MODELLING FOR GAS DISPERSION SIMULATION", p. 6202-6208 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1710-17942-151550

últimos 30 dias | último ano | desde a publicação


downloads


visualizações


indexações