Table 3.
Flow parameters for multiple particle simulations with variable volume fraction ϕ, ρp/ρf = 2 (Fr = 1) and turbulent forcing as case Re30 of table 1. Where ⟨ ⟩ indicates an average over the particles.
| N p | ϕ (%) | ⟨vz⟩ | Reλ | u rms | ε | ||
|---|---|---|---|---|---|---|---|
| 0 | 0 | – | – | 33.9 | 0.27 | 7.5 × 10−3 | 0.00 |
| 1 | 0.05 | −1.18 | −0.17 | 31.9 | 0.27 | 8.0 × 10−3 | −0.43 |
| 5 | 0.25 | −1.17 | −0.17 | 29.5 | 0.29 | 1.2 × 10−2 | −0.86 |
| 10 | 0.50 | −1.14 | −0.17 | 28.1 | 0.30 | 1.6 × 10−2 | −1.21 |
| 20 | 1.00 | −1.10 | −0.16 | 24.4 | 0.31 | 2.5 × 10−2 | −1.59 |
| 40 | 2.00 | −1.03 | −0.16 | 22.9 | 0.34 | 4.0 × 10−2 | −1.67 |