spheric_testcase5_dambreak
Evolution of a dam-break is reproduced using 2D version of SPH model. Starting from experimental results we can validate our model. So, different results depending on height of wet bottom are obtained. The experiment was taken from the paper by Janosi et al. 2004. Experimental setup is depicted in the following image, where d0 = 15 cm is the dam-break height and d is the fluid depth in the bottom of the tank (d=0 indicates a dry bed):
While in the experiment two different bottom depths were considered; 18 and 38 mm, herein just the results corresponding to 38mm are shown.
- n = 50000 (In the reservoir)
- Δr = 1.0x10-3m
- h / Δr = 3
- α = 0.0
- δ = 1.0
- cs = 45m/s
- Δt = 1.67x10-5s
- BCs: Boundary integrals, Free-Slip
- No turbulence model
In the following figure the snapshots of the simulation, compared with the experimental ones, are shown:
A relatively good agreement can be appreciated, even though 3D effects, door motion and air entraped have not been considered.