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Decaying versus stationary turbulence in particle-laden isotropic turbulence: Heavy particle statistics modifications
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10.1063/1.4795333
/content/aip/journal/pof2/25/3/10.1063/1.4795333
http://aip.metastore.ingenta.com/content/aip/journal/pof2/25/3/10.1063/1.4795333

Figures

Image of FIG. 1.
FIG. 1.

Time evolution of the Stokes number in decaying turbulence: solid line, one-way turbulence; dashed line, two-way turbulence. Time is normalized by the initial eddy turn-over time of the base flow without particles.

Image of FIG. 2.
FIG. 2.

Statistics of the cosine angle between particle and fluid velocity vectors in decaying turbulence for various initial values of the Stokes number: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 3.
FIG. 3.

Statistics of the cosine angle between particle and fluid velocity vectors in stationary turbulence for various initial values of the Stokes number: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 4.
FIG. 4.

Fluid velocity auto-correlations function seen by particles in decaying turbulence for various initial values of the Stokes number: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 5.
FIG. 5.

Fluid velocity auto-correlations function seen by particles in stationary turbulence: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 6.
FIG. 6.

Velocity auto-correlations function of heavy particles in decaying turbulence: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 7.
FIG. 7.

Velocity auto-correlations function of heavy particles in stationary turbulence: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 8.
FIG. 8.

Dispersion of heavy particles in decaying turbulence normalized by the square of one-way turbulence integral length scale: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 9.
FIG. 9.

Dispersion of heavy particles in stationary turbulence normalized by the square of one-way turbulence integral length scale: (a) St = 0.1; (b) St = 0.2; (c) St = 1.0; and (d) St = 5.0.

Image of FIG. 10.
FIG. 10.

Diffusivity of heavy particles in one-way (solid) and two-way (dashed-dotted) turbulence normalized by one-way fluid particle diffusivity, and diffusivity normalized by two-way fluid particle diffusivity (dashed line): (a) Decaying turbulence. (b) Stationary turbulence.

Tables

Generic image for table
Table I.

Flow parameters of the base flow without laden particles, ϕ = 0.0 at = 0.0. All quantities are normalized by and .

Generic image for table
Table II.

Particle properties, with ϕ = 0.4, α = 5 × 10, and ρ/ρ = 800.

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/content/aip/journal/pof2/25/3/10.1063/1.4795333
2013-03-18
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Decaying versus stationary turbulence in particle-laden isotropic turbulence: Heavy particle statistics modifications
http://aip.metastore.ingenta.com/content/aip/journal/pof2/25/3/10.1063/1.4795333
10.1063/1.4795333
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