Abstract
AbstractEulerian-Lagrangian method is becoming more and more popular for the simulation of dispersed multiphase flow as the computational ability grows. An important issue in this method is the handle of collisions. Until now, both hard-sphere and soft-sphere models have been used extensively in the simulation of gas-solid systems while in gas-liquid systems only the hard-sphere model is used. This study presents an investigation of the performance of the soft-sphere model in gas-liquid systems. The open source software OpenFOAM is utilized to complete our simulations. We simulated the 2D Becker case to give a preliminary study of the suitability of the soft-sphere model in gas-liquid systems. We tested the normal stiffness coefficient from 50 N/m to 0.01 N/m and found that the coefficient 1 N/m predicted sufficiently accurate flow field. In the simulation of 3D Deen case, we tried more stiffness coefficients and found that the soft-sphere model successfully predicted the fluid velocity, and the result at a normal stiffness coefficient of 1 N/m is the optimum. It can be expected that the soft-sphere model is also suitable in gas-liquid systems.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Chemical Reactor Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
