Particleresolved simulations of fourway coupled, polydispersed, particleladen flows Academic Article uri icon

abstract

  • AbstractWe present a collocatedgrid framework for direct numerical simulations of polydisperse particles submerged in a viscous fluid. The fluidparticle forces are coupled with the immersed boundary method (IBM) while the particleparticle forces are modeled with a combination of contact and lubrication models, adapted for collocated grids. Our method is modified from the staggeredgrid IBM of previous authors to a collocatedgrid IBM by adapting the fluid and particle solvers. The method scales well on highperformance parallel computing platforms. It has been validated against various cases and is able to reproduce experimental results. Tuning parameters have been thoroughly calibrated to ensure the accuracy of the method. Finally, we demonstrate the capability of the method to simulate both monodispersed and bidispersed fluidized beds and reproduce the power law relationship between the inflow velocity and the porosity.

published proceedings

  • International Journal for Numerical Methods in Fluids

author list (cited authors)

  • Yao, Y., Biegert, E., Vowinckel, B., Kllner, T., Meiburg, E., Balachandar, S., Criddle, C. S., & Fringer, O. B.

complete list of authors

  • Yao, Yinuo||Biegert, Edward||Vowinckel, Bernhard||Köllner, Thomas||Meiburg, Eckart||Balachandar, Sivaramakrishnan||Criddle, Craig S||Fringer, Oliver B

publisher