Table 2 Input parameters for pettimudi debris flow simulation.
S. no. | Parameters | Notation | Unit | Value |
|---|---|---|---|---|
1 | Density | ρ | \(\:kg/{m}^{3}\) | 1800 |
2 | kinematic viscosity | \(\:\nu\:\) | \(\:{m}^{2}/s\) | 2 |
3 | Specific Yield stress | \(\:{\:\:\tau\:}_{y}\) | \(\:Pa.{m}^{3}/kg\) | 0.07 |
4 | Key coefficients of the HBP model | m | / | 100 |
n | / | 1.5 | ||
5 | Total number of fluid particles | \(\:{N}_{{p}_{f}}\) | / | 35,893 |
6 | Total number of boundary particles | \(\:{N}_{{p}_{b}}\) | / | 5,91,333 |
7 | Particle distance | \(\:{d}_{p}\) | \(\:m\) | 0.8 |
8 | Simulation duration | t | \(\:s\) | 350 |
9 | Smooth length | \(\:{l}_{s}\) | \(\:m\) | 1.385 |
10 | The ratio between smoothing length and particle distance | k | / | 1.73 |
11 | Sound speed coefficient | β | / | 10 |
12 | Constant of EoS | γ | / | 7 |
13 | The artificial viscosity coefficients | \(\:{\alpha\:}_{\text{I}\text{I}}\), \(\:{\beta\:}_{\text{I}\text{I}}\) | / | 0.1 |
14 | Initial time interval | Δt | \(\:s\) | 0.0001 |
15 | CFL coefficient | CFL | / | 0.2 |
