Numerical Simulation of Gas Holdup Distribution in a Standard Rushton Stirred Tank Using Discrete Particle Method

作者: HAN Luchang , LIU Yuejin , None

DOI: 10.1016/S1004-9541(08)60007-5

关键词: Computer simulationDrag coefficientAdded massAccelerationPhysicsMechanicsBubbleMomentumClassical mechanicsTurbulenceEquations of motion

摘要: The discrete particle method was used to simulate the distribution of gas holdup in a gas-liquid standard Rushton stirred tank. phase treated as large number bubbles and their trajectories were tracked with results motion equations. two-way approach performed couple interphase momentum exchange. turbulent dispersion size modeled using stochastic tracking model, added mass force involved account for effect bubble acceleration on surrounding fluid. predicted showed that this could give reasonable prediction comparable reported experimental data when turbulence took into modification drag coefficient.

参考文章(16)
Marko Laakkonen, Ville Alopaeus, Juhani Aittamaa, Validation of bubble breakage, coalescence and mass transfer models for gas–liquid dispersion in agitated vessel Chemical Engineering Science. ,vol. 61, pp. 218- 228 ,(2006) , 10.1016/J.CES.2004.11.066
Vivek V. Buwa, Dhanannjay S. Deo, Vivek V. Ranade, Eulerian-Lagrangian simulations of unsteady gas-liquid flows in bubble columns International Journal of Multiphase Flow. ,vol. 32, pp. 864- 885 ,(2006) , 10.1016/J.IJMULTIPHASEFLOW.2006.02.017
Marko Laakkonen, Pasi Moilanen, Ville Alopaeus, Juhani Aittamaa, Modelling local bubble size distributions in agitated vessels Chemical Engineering Science. ,vol. 62, pp. 721- 740 ,(2007) , 10.1016/J.CES.2006.10.006
S.S. Alves, S.P. Orvalho, J.M.T. Vasconcelos, Effect of bubble contamination on rise velocity and mass transfer Chemical Engineering Science. ,vol. 60, pp. 1- 9 ,(2005) , 10.1016/J.CES.2004.07.053
F. Kerdouss, A. Bannari, P. Proulx, CFD MODELING OF GAS DISPERSION AND BUBBLE SIZE IN A DOUBLE TURBINE STIRRED TANK Chemical Engineering Science. ,vol. 61, pp. 3313- 3322 ,(2006) , 10.1016/J.CES.2005.11.061
F. Magelli, D. Fajner, M. Nocentini, G. Pasquali, Solid distribution in vessels stirred with multiple impellers Chemical Engineering Science. ,vol. 45, pp. 615- 625 ,(1990) , 10.1016/0009-2509(90)87005-D
Xiaobo Gong, Shu Takagi, Huaxiong Huang, Yoichiro Matsumoto, A numerical study of mass transfer of ozone dissolution in bubble plumes with an Euler-Lagrange method Chemical Engineering Science. ,vol. 62, pp. 1081- 1093 ,(2007) , 10.1016/J.CES.2006.11.015
G.L. Lane, M.P. Schwarz, G.M. Evans, Numerical modelling of gas–liquid flow in stirred tanks Chemical Engineering Science. ,vol. 60, pp. 2203- 2214 ,(2005) , 10.1016/J.CES.2004.11.046
A.R. Khopkar, G.R. Kasat, A.B. Pandit, V.V. Ranade, CFD simulation of mixing in tall gas-liquid stirred vessel: Role of local flow patterns Chemical Engineering Science. ,vol. 61, pp. 2921- 2929 ,(2006) , 10.1016/J.CES.2005.09.023
A. Brucato, F. Grisafi, G. Montante, Particle drag coefficients in turbulent fluids Chemical Engineering Science. ,vol. 53, pp. 3295- 3314 ,(1998) , 10.1016/S0009-2509(98)00114-6