Experimental Investigation on Turbulence Modulation in the Boundary Layer of a Horizontal Particle-laden Channel Flow with Relative Low Mass Loading Ratios

2010 ◽  
Author(s):  
J. Li ◽  
H. F. Wang ◽  
Z. H. Liu ◽  
Y. M. Liu ◽  
H. F. Han ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Experimental Investigation ◽  
Channel Flow ◽  
Mass Loading ◽  
Turbulence Modulation ◽  
Low Mass ◽  
Horizontal Particle

Experimental investigation on turbulence modification in a horizontal channel flow at relatively low mass loading

2006 ◽  
Vol 22 (2) ◽  
pp. 99-108 ◽  
Author(s):  
Yi Wu ◽  
Hangfeng Wang ◽  
Zhaohui Liu ◽  
Jing Li ◽  
Liqi Zhang ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Channel Flow ◽  
Horizontal Channel ◽  
Mass Loading ◽  
Turbulence Modification ◽  
Low Mass

Turbulence Modulations in the Boundary Layer of a Horizontal Particle-Laden Channel Flow

2010 ◽  
Vol 27 (6) ◽  
pp. 064701 ◽  
Author(s):  
Li Jing ◽  
Liu Zhao-Hui ◽  
Wang Han-Feng ◽  
Chen Sheng ◽  
Liu Ya-Ming ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Channel Flow ◽  
Horizontal Particle

Modulation of turbulence by dispersed solid particles in a spatially developing flat-plate boundary layer

2016 ◽  
Vol 802 ◽  
pp. 359-394 ◽  
Author(s):  
Dong Li ◽  
Kun Luo ◽  
Jianren Fan
Keyword(s):  
Boundary Layer ◽  
Flat Plate ◽  
Fluid Velocity ◽  
Plate Boundary ◽  
Stokes Number ◽  
Point Particle ◽  
Solid Particles ◽  
Inertial Particles ◽  
Mass Loading ◽  
Turbulence Modulation

Direct numerical simulations of particle-laden spatially developing turbulent boundary layers over a flat plate have been performed to investigate the effect of inertial particles on turbulence modulation, using the Eulerian–Lagrangian point-particle approach with two-way coupling. The particles are smaller than the Kolmogorov length scale of the dilute flow, and inter-particle collisions are not considered. The simulation results show that the addition of small solid particles increases the mean streamwise fluid velocity, which in turn leads to a reduction in the boundary layer integral parameters and an increase in the skin-friction drag. These effects become more pronounced as the particle Stokes number and mass loading increase. The streamwise turbulence intensity is slightly enhanced in the close vicinity of the wall but damped in the outer layer. In contrast, the Reynolds stress and the turbulence intensities in the wall-normal and spanwise directions are substantially attenuated across the entire boundary layer, and the levels of attenuation increase monotonically with both particle Stokes number and mass loading. The exchange of kinetic energy between particles and fluid indicates that particle–fluid interactions cause extra energy dissipation, which plays a crucial role in turbulence modulation.

Modeling of controlled shock-wave/boundary-layer interactions in transonic channel flow

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 2293-2301
Author(s):  
R. Benay ◽  
P. Berthouze ◽  
R. Bur
Keyword(s):  
Boundary Layer ◽  
Shock Wave ◽  
Channel Flow ◽  
Wave Boundary Layer ◽  
Wave Boundary
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