Simulation of free turbulent particle-laden jet using Reynolds-stress gas turbulence model
Abstract
Free two-phase flows occur in many practical applications, such as sprays or particle drying and combustion. This paper deals with mathematical modelling of a free turbulent two-phase jet. A steady, axisymmetric, dilute, monodisperse, particle-laden, turbulent jet injected into a still environment, has been considered. The model treats the gas-phase from an Eulerian standpoint and the motion of particles from a Lagrangian one. Closure of the system of time averaged transport equations has been accomplished by using a Reynolds-stress turbulence model. The particles-fluid interaction has been considered by the PSI-Cell concept. Both the effect of interphase slip and the effect of particle dispersion have been taken into account. Results of the model have been compared with experimental data for axial and radial profiles of gas-phase mean and turbulent quantities and solid-phase mean velocity. Accuracy of model predictions of particle-laden free jet time averaged characteristics as well a...s turbulence correlation coefficients have been improved. The modelling of observed turbulence anisotropy levels and correlation coefficients need to be carried out with special care. The model has provided insight into the turbulence structure and aerodynamic characteristics of the particle-laden free jet. A brief sensitivity study has been performed as well, indicating that the specification of inlet boundary conditions exerts pronounced effects on predictions. In this paper, the study refers to the effect of the turbulence kinetic energy dissipation rate, while the other inlet boundary conditions have been applied with respect to the referent measurements. (c) 2006 Elsevier Inc. All rights reserved.
Keywords:
free particle-laden jet / turbulence / Eulerian-Lagrangian approach / Reynolds-stress modelSource:
Applied Mathematical Modelling, 2007, 31, 6, 1001-1014
DOI: 10.1016/j.apm.2006.03.019
ISSN: 0307-904X; 1872-8480
WoS: 000244918800004
Scopus: 2-s2.0-33846141790
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Institution/Community
VinčaTY - JOUR AU - Sijercic, Miroslav AU - Belošević, Srđan AU - Stevanović, Žarko M. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3165 AB - Free two-phase flows occur in many practical applications, such as sprays or particle drying and combustion. This paper deals with mathematical modelling of a free turbulent two-phase jet. A steady, axisymmetric, dilute, monodisperse, particle-laden, turbulent jet injected into a still environment, has been considered. The model treats the gas-phase from an Eulerian standpoint and the motion of particles from a Lagrangian one. Closure of the system of time averaged transport equations has been accomplished by using a Reynolds-stress turbulence model. The particles-fluid interaction has been considered by the PSI-Cell concept. Both the effect of interphase slip and the effect of particle dispersion have been taken into account. Results of the model have been compared with experimental data for axial and radial profiles of gas-phase mean and turbulent quantities and solid-phase mean velocity. Accuracy of model predictions of particle-laden free jet time averaged characteristics as well as turbulence correlation coefficients have been improved. The modelling of observed turbulence anisotropy levels and correlation coefficients need to be carried out with special care. The model has provided insight into the turbulence structure and aerodynamic characteristics of the particle-laden free jet. A brief sensitivity study has been performed as well, indicating that the specification of inlet boundary conditions exerts pronounced effects on predictions. In this paper, the study refers to the effect of the turbulence kinetic energy dissipation rate, while the other inlet boundary conditions have been applied with respect to the referent measurements. (c) 2006 Elsevier Inc. All rights reserved. T2 - Applied Mathematical Modelling T1 - Simulation of free turbulent particle-laden jet using Reynolds-stress gas turbulence model VL - 31 IS - 6 SP - 1001 EP - 1014 DO - 10.1016/j.apm.2006.03.019 ER -
@article{ author = "Sijercic, Miroslav and Belošević, Srđan and Stevanović, Žarko M.", year = "2007", abstract = "Free two-phase flows occur in many practical applications, such as sprays or particle drying and combustion. This paper deals with mathematical modelling of a free turbulent two-phase jet. A steady, axisymmetric, dilute, monodisperse, particle-laden, turbulent jet injected into a still environment, has been considered. The model treats the gas-phase from an Eulerian standpoint and the motion of particles from a Lagrangian one. Closure of the system of time averaged transport equations has been accomplished by using a Reynolds-stress turbulence model. The particles-fluid interaction has been considered by the PSI-Cell concept. Both the effect of interphase slip and the effect of particle dispersion have been taken into account. Results of the model have been compared with experimental data for axial and radial profiles of gas-phase mean and turbulent quantities and solid-phase mean velocity. Accuracy of model predictions of particle-laden free jet time averaged characteristics as well as turbulence correlation coefficients have been improved. The modelling of observed turbulence anisotropy levels and correlation coefficients need to be carried out with special care. The model has provided insight into the turbulence structure and aerodynamic characteristics of the particle-laden free jet. A brief sensitivity study has been performed as well, indicating that the specification of inlet boundary conditions exerts pronounced effects on predictions. In this paper, the study refers to the effect of the turbulence kinetic energy dissipation rate, while the other inlet boundary conditions have been applied with respect to the referent measurements. (c) 2006 Elsevier Inc. All rights reserved.", journal = "Applied Mathematical Modelling", title = "Simulation of free turbulent particle-laden jet using Reynolds-stress gas turbulence model", volume = "31", number = "6", pages = "1001-1014", doi = "10.1016/j.apm.2006.03.019" }
Sijercic, M., Belošević, S.,& Stevanović, Ž. M.. (2007). Simulation of free turbulent particle-laden jet using Reynolds-stress gas turbulence model. in Applied Mathematical Modelling, 31(6), 1001-1014. https://doi.org/10.1016/j.apm.2006.03.019
Sijercic M, Belošević S, Stevanović ŽM. Simulation of free turbulent particle-laden jet using Reynolds-stress gas turbulence model. in Applied Mathematical Modelling. 2007;31(6):1001-1014. doi:10.1016/j.apm.2006.03.019 .
Sijercic, Miroslav, Belošević, Srđan, Stevanović, Žarko M., "Simulation of free turbulent particle-laden jet using Reynolds-stress gas turbulence model" in Applied Mathematical Modelling, 31, no. 6 (2007):1001-1014, https://doi.org/10.1016/j.apm.2006.03.019 . .