DNS Study Of Interactions Between Clouds Of
Particle And Isotropic Homogeneous Turbulent
Flow
Author(s)
T. Tsuji, H. Kanda, T. Yokomine & A. Shimizu
Abstract
Turbulence modulations of isotropic homogeneous turbulence by solid
particles were investigated microscopically by means of direct numerical
simulation (DNS) that take volume of particle into account. Our primary
object is to investigate how turbulence structure is modified by particles,
this may play an essential role in turbulence modulation, from microscopic
view. Particle diameters were set considerably larger than Kolmogorov
micro scale. To verify the fundamental processes that occur locally,
particle locations and velocities were defined arbitrary. The modified flow
micro-structure by the existence and motion of particles showed distinctions
between two cases of particle Reynolds number. I
Keywords
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