Turbulence statistics for an unsteady lock-exchange gravity current during the slumping phase.

Dataset of a lock-exchange gravity current propagating over a mild slope for the computation of turbulence statistics. Data available at t =12.5 s after start of the computation (tadim = 29.1). The data are saved in the range -0.58 m . List of files: - data_t291_vtk.tar.gz -> Contains the 200 simulation results at tadim = 29.1 used for the statistics calculation. The data are in dimensional form - fields_turbulence_statistics_ensembleAveraging_t29.1 -> Corresponding ensemble- and spanwise-averaged statistics . Scaling quantities for non-dimensionalisation: - Velocity: ub = 0.349 m/s - Length: H/2 = 0.15 m - Time: t0 = (H/2)/ub = 0.43 s . Initial computational domain size: - Lock length: Lx.lock = 0.58 m - Channel length: Lx,channel = 5 m - Domain height: H = 0.3 m - Domain width: Lz = 0.4 m - Inclination: tan(a) = 2% . Physical conditions: - density light fluid: rho0 = 997.3 kg/m3 - density dense fluid: rho1 = 1080 kg/m3 - kinematic viscosity: nu = 8.7327 10-7 m2/s - density diffusivity: kappa = 8.7327 10-7 m2/s - gravity vector: g = 9.81 m/s2 - Reynolds number: Reb = ub(H/2)/nu = 60 000 - Schmidt number: Sc = nu/kappa = 1 . Grid resolution - Uniform mesh spacing: delta = 0.0054 m - first vertical mesh spacing at bottom wall dy1 = 0.0002 m. Initial conditions:- -0.45 i/ub . Boundary conditions- Bottom: no slip wall- side walls: symmetry- Front, back and top walls: slip walls