****************************** ------------------------------------------ * PALM 3.9 Rev: 1170M * atmosphere - 3D - run without 1D - prerun ****************************** ------------------------------------------ Date: 30-05-13 Run: acc_small Time: 10:44:18 Run-No.: 00 Run on host: unknown Accelerator boards: 1 ------------------------------------------------------------------------------ Numerical Schemes: ----------------- --> Solve perturbation pressure via FFT using system-specific routines perturbation pressure is calculated at every Runge-Kutta step --> Momentum advection via Wicker-Skamarock-Scheme 5th order --> Scalar advection via Wicker-Skamarock-Scheme 5th order --> Loop optimization method: acc --> Time differencing scheme: runge-kutta-3 ------------------------------------------------------------------------------ Run time and time step information: ---------------------------------- Timestep: variable maximum value: 20.000 s CFL-factor: 0.90 Start time: 0.000 s End time: 600.000 s Computational grid and domain size: ---------------------------------- Grid length: dx = 50.000 m dy = 50.000 m dz = 50.000 m Domain size: x = 2000.000 m y = 2000.000 m z(u) = 2862.511 m dz constant up to 1200.000 m (k= 25), then stretched by factor: 1.080 maximum dz not to be exceeded is dz_max = ********** m Number of gridpoints (x,y,z): (0: 39, 0: 39, 0: 41) Subdomain size (x,y,z): ( 40, 40, 42) Topography informations: ----------------------- Topography: flat Boundary conditions: ------------------- p uv pt B. bound.: p(0) = p(1) | uv(0) = -uv(1) | pt(0) = pt(1) T. bound.: p(nzt+1) = 0 | uv(nzt+1) = ug(nzt+1), vg(nzt+1) | pt(nzt+1) = pt(nzt) + dpt/dz_ e B. bound.: e(0) = e(1) T. bound.: e(nzt+1) = e(nzt) = e(nzt-1) Bottom surface fluxes are used in diffusion terms at k=1 Predefined constant heatflux: 0.100000 K m/s Prandtl-Layer between bottom surface and first computational u,v-level: zp = 25.00 m z0 = 0.1000 m z0h = 0.10000 m kappa = 0.40 Rif value range: -5.00 <= rif <= 1.00 Lateral boundaries: left/right: cyclic north/south: cyclic List output: ----------- 1D-Profiles: Output every ******** s Data output: ----------- Time series: Output format: netCDF 64bit offset Output every 0.00 s ------------------------------------------------------------------------------ Physical quantities: ------------------- Angular velocity : omega = 0.729E-04 rad/s Geograph. latitude : phi = 55.0 degr Coriolis parameter : f = 0.000119 1/s f* = 0.000084 1/s Gravity : g = 9.8 m/s**2 Reference temperature in buoyancy terms: 300.0000 K Characteristic levels of the geo. wind component ug: Height: 0.0 0.0 m ug: 0.00 0.00 m/s Gradient: ------ 0.00 1/100s Gridpoint: 0 0 Characteristic levels of the geo. wind component vg: Height: 0.0 0.0 m vg: 0.00 0.00 m/s Gradient: ------ 0.00 1/100s Gridpoint: 0 0 Characteristic levels of the initial temperature profile: Height: 0.0 0.0 800.0 m Temperature: 300.00 300.00 300.00 K Gradient: ------ 0.00 1.00 K/100m Gridpoint: 0 0 16 Cloud physics quantities / methods: ---------------------------------- LES / Turbulence quantities: --------------------------- Mixing length is limited to 1.80 * z Actions during the simulation: ----------------------------- Disturbance impulse (u,v) every : ****** s Disturbance amplitude : 0.25 m/s Lower disturbance level : 125.00 m (GP 3) Upper disturbance level : 625.00 m (GP 13) Disturbances cease as soon as the disturbance energy exceeds 0.010 m**2/s**2 Random number generator used : numerical-recipes *** no user-defined variables found ------------------------------------------------------------------------------ Run-control output: ------------------ RUN ITER. HH:MM:SS.SS DT(E) UMAX VMAX WMAX U* W* THETA* Z_I ENERG. 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