TY - JOUR
T1 - Direct numerical simulation of interacting inertial particles in homogeneous isotropic turbulence
AU - Onishi, R.
AU - Vassilicos, J. C.
AU - Takahashi, K.
N1 - Publisher Copyright:
© 2012 Begell House, Inc.
PY - 2012
Y1 - 2012
N2 - This study has developed an efficient parallel simulation code for interacting inertial particles in homogeneous isotropic turbulence. Flow is computed with a fourth-order finite-difference method and particles are tracked with the Lagrangian method. The code adopts an MPI library for a d istributed-memory parallelization and is designed to minimize the MPI communication, which leads to a high parallel performance. The code has been run to obtain collision statistics of a monodisperse system with St =0.4 particles, where St is the Stokes number representing the particle relaxation time relative to the Kolmogorov time. The attained Taylor-microscale based Reynolds number R? ranges from 50 to over 500. This wide range of R? has potential to reveal a Reynolds dependency of collision statistics.
AB - This study has developed an efficient parallel simulation code for interacting inertial particles in homogeneous isotropic turbulence. Flow is computed with a fourth-order finite-difference method and particles are tracked with the Lagrangian method. The code adopts an MPI library for a d istributed-memory parallelization and is designed to minimize the MPI communication, which leads to a high parallel performance. The code has been run to obtain collision statistics of a monodisperse system with St =0.4 particles, where St is the Stokes number representing the particle relaxation time relative to the Kolmogorov time. The attained Taylor-microscale based Reynolds number R? ranges from 50 to over 500. This wide range of R? has potential to reveal a Reynolds dependency of collision statistics.
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U2 - 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1510
DO - 10.1615/ICHMT.2012.ProcSevIntSympTurbHeatTransfPal.1510
M3 - Conference article
AN - SCOPUS:85073489518
SN - 2377-2816
VL - 2012-September
SP - 1472
EP - 1475
JO - Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer
JF - Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer
T2 - 7th International Symposium On Turbulence, Heat and Mass Transfer, THMT 2012
Y2 - 24 September 2012 through 27 September 2012
ER -