Table 1 Summary of model setup parameters used in the numerical experiment (teletype fonts for OpenFOAM specific parameters)

From: On the optimum of the energy transfer efficiency in the generation of waves by subaerial landslides

Solver/ method

multiphaseInterfoam/RANS-VOF

 

No. phases

3-phases

alpha.sed/alpha.water/alpha.air

densities

ρwρsρa

1000, 1000, 1 (kg m−3)

kinematic viscosities

νwνsνa

10−6, 10−6, 1.48 × 10−5(m2 s−1)

water depth (h0)

0.2 m

-

mesh resolution

2.5/5 mm

-

Domain length/height

20 m  × up to 1.05 m

slope angle = 45 degrees

BC for U field

noslip/pressureInletOutletVelocity

walls, slope, bottom/top

BC for p_rgh field

fixedFluxPressure=0/totalPressure=0

walls, slope, bottom/top

BC for alpha.* field

zeroGradient/inletOutlet=0

walls, slope, bottom/top

Turbulence model

k-ω SST Buoyancy modified

initial values: k=1e-4, omega= 1, nut= 0

Duration/Δt/ CFL

12 s/ 0.01 s/ 0.1

output frequency: 0.05 s

gradient scheme

linear

grad(U), grad(gamma)

divergence scheme

linearUpwind

for div(rhoPhi,U)

Laplacian scheme

linear corrected

-