Numerical study of asymmetric and axisymmetric thermal jet with entropy generation concept

  • D. Belakhal University of science and technology of Oran- PO Box 1505 - El Mnaouer in the City of Oran- Algeria. Phone: +213699647576
  • Kouider Rahmani Research Laboratory Modeling Simulation and Optimization of Real Complex Systems, group: Mechanical Systems and New Energies at the University of Djelfa, Algeria
  • Amel Elkaroui Elkaroui LGM, National Engineering School of Monastir at the University of Monastir, Tunisia
  • Syrine Ben Haj Ayech LGM, National Engineering School of Monastir at the University of Monastir, Tunisia
  • Nejla Mahjoub Saïd LGM, Preparatory Institute for Engineering Studies at the University of Monastir, Tunisia
  • Bachir Imine Laboratory of Aeronautics and Propulsive Systems, University of science and technology of Oran, PO Box 1505, El Mnaouer in the City of Oran, Algeria
Keywords: Asymmetricgeometry, axisymmetric geometry, thermal jets, variable density, entropy generation

Abstract

In the current investigation, numerical study of a thermal jet of asymmetric (rectangular and elliptical) and axisymmetric (circular) geometry was investigated with variable density to verify the impact of the ratio of density and geometry on the generation of entropy. The central jet was brought to different temperatures (194, 293 and 2110 K) to obtain density ratios (0.66, 1 and 7.2) identical to a mixture jet ((Air-CO2), (Air-Air) and (Air-He)), respectively. Solving the three-dimensional numerical resolution of the Navier Stocks for turbulent flow permanent enclosed on the turbulence model K-εstandard was made. The results acquired are compared with that carried out in previous experimental studies, where it was concluded that, the axisymmetric (circular) geometry increases the entropy generation.

Published
2021-03-08
How to Cite
Belakhal, D., Rahmani, K., Elkaroui, A. E., Ben Haj Ayech, S., Mahjoub Saïd, N., & Imine, B. (2021). Numerical study of asymmetric and axisymmetric thermal jet with entropy generation concept. Journal of Mechanical Engineering and Sciences, 15(1), 7628 - 7636. https://doi.org/10.15282/jmes.15.1.2021.01.0601
Section
Article