Namoptions overview¶
This list refers to the original code-base DALES. The latest version of the namoptions overview of DALES is documented here.
Namelist DOMAIN¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| imax | 64 | See itot in DALES. |
||
| jtot | 64 | See DALES. | ||
| kmax | 96 | See DALES. | ||
| xsize | -1 | See DALES. | ||
| ysize | -1 | See DALES. | ||
| xlat | 52. | See DALES. | ||
| xlon | 0. | See DALES. | ||
| xday | 1. | See DALES. | ||
| xtime | 0. | See DALES. | ||
| ksp | -1 | See DALES. (Setting to -1 calculates default value) |
Namelist DYNAMICS¶
Possible advection schemes:
1 = 1st order upwind scheme
2 = 2nd order central difference scheme
7 = Kappa (flux limited) scheme. This scheme designed for quantities that should never become negative.
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| lqlnr | .false. | See DALES. Default switched from .true. | ||
| iadv_mom | 2 | 2 | Advection scheme for momentum. Also in DALES. | - |
| iadv_tke | -1 | 2 | Advection scheme for TKE. Only used if loneeqn = True. Also in DALES. |
- |
| iadv_thl | -1 | 2, 7 | Advection scheme for temperature. Also in DALES. | - |
| iadv_qt | -1 | 2 | Advection scheme for moisture. Also in DALES. | - |
| iadv_sv | -1 | 1, 2, 7 | Advection scheme for scalars. Also in DALES. | - |
| ipoiss | 1 | 0, 1 | Poisson solver. 0 = Fast Fourier Transformation, 1 = Cyclic reduction scheme. Default will change to 0 in the future. | - |
Namelist PHYSICS¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| ps | -1 | See DALES. | ||
| lcoriol | .false. | .true., .false. | See DALES. Default switched to .false. | - |
| igrw_damp | 2 | See DALES. | ||
| lmoist | .false. | .true., .false. | See DALES. Default switched to .false. | - |
| ltempeq | .false. | .true., .false. | Switch for solving temperature equation. | - |
| lbuoyancy | .false. | .true., .false. | Switch for buoyancy force in temperature equation. | - |
| lprofforc | .false. | .true., .false. | Switch for nudging flow to a profile (forcing). | - |
| luoutflowr | .false. | .true., .false. | Switch that determines whether u-velocity is corrected to get a fixed outflow rate | |
| lvoutflowr | .false. | .true., .false. | Switch that determines whether u-velocity is corrected to get a fixed outflow rate | |
| luvolflowr | .false. | .true., .false. | Switch that determines whether u-velocity is corrected to get a fixed volume flow rate | |
| lvvolflowr | .false. | .true., .false. | Switch that determines whether u-velocity is corrected to get a fixed volume flow rate | |
| uflowrate | 1. | REAL |
U-velocity flow rate for out- or volume-flow forcing. | m/s |
| vflowrate | 1. | REAL |
V-velocity flow rate out- or volume-flow forcing. | m/s |
| ifixuinf | 0 | 1, 2 | Choice for free stream forcing. (0 = nothing) | |
| lvinf | .false. | .true., .false. | Use Vinf instead of Uinf for the fixed velocity at infinity | |
| tscale | Timescale: domain height*Uinf/utau**2 | |||
| lnudge | .false. | Switch for applying nudging at the top of the domain | ||
| tnudge | 50. | Time scale for nudging | ||
| nnudge | 10 | |||
| dpdx | 0. | Constant pressure gradient forcing in x. |
Namelist RUN¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| iexpnr | 0 | See DALES. | ||
| runtime | 300 | See DALES. | ||
| dtmax | 20 | See DALES. | ||
| lwarmstart | .false. | See DALES. | ||
| lper2inout | .false. | .true., .false. | Switch that determines type of restart: .true. means switching from periodic to in/outflow: inlet profile is read from prof.inp. Potentially deprecated. May be removed in the future. |
|
| startfile | '' | See DALES. | ||
| lstratstart | .false. | .true., .false. | Description missing | |
| trestart | 10000. | See DALES. | ||
| irandom | 0 | See DALES. | ||
| krand | See DALES. Setting no value will return kmax. | |||
| randu | 0. | See DALES. Default changed from 0.5 | ||
| randthl | 0. | See DALES. Default changed from 0.1 | ||
| randqt | 0. | See DALES. Default changed from 1e-5. | ||
| ladaptive | .false. | See DALES. | ||
| courant | -1 | Default sets it to 1.5 or 1.1 (if Kappa or upwind scheme is used). These are different values than in DALES. | ||
| diffnr | 0.25 | Diffusion number? Used to determine adaptive time step. | ||
| author | '' | See DALES. | ||
| lles | .true. | .true., .false. | Switch that determines whether the subgrid model is turned on or constant ekm and ekh are used (DNS) | - |
| libm | .true. | Switch that determines whether the Immersed Boundary Method is turned on. Deprecated. Will be removed in the future. | ||
| lreadmean | .false. | Switch that determines whether mean variables should be read from means#myid#.#expnr# Potentially deprecated. May be removed in the future. | ||
| lwalldist | .false. | Switch that determines whether the wall distances should be computed for the subgrid models. Potentially deprecated. May be removed in the future. |
Namelist OUTPUT¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| lfielddump | .false. | .true., .false. | Switch for instantaneous field output. | - |
| tfielddump | 10000. | Output time for fields. | s | |
| fieldvars | '' | Any of the given labels, several are seperated by a comma: u0,v0,w0,th,ql,qt,p0,s1,s2,s3,s4,s5 | Variable names of fields. | - |
| tsample | 5. | Sample time for statistics. | s | |
| tstatsdump | 10000. | Output time for statistics. | s | |
| ltdump | .false. | .true., .false. | Switch to output time-averaged statistics. | - |
| lydump | .false. | .true., .false. | Switch to output y-averaged statistics. | - |
| lytdump | .false. | .true., .false. | Switch to output y- and time- averaged statistics. | - |
| lxydump | .false. | .true., .false. | Switch to output x- and y- averaged statistics. | - |
| lxytdump | .false. | .true., .false. | Switch to output x-, y- and time-averaged statistics. | - |
| lslicedump | .false. | .true., .false. | Switch to output slices in the xy-plane. | - |
| ltkedump | .false. | .true., .false. | Not supported in the current version. | - |
Namelist NAMSUBGRID¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| lvreman | .false. | .true., .false. | Switch for Vreman (2004) sub-grid scheme. | - |
| c_vreman | 0.07 | Model constant for Vreman scheme. | ||
| lbuoycorr | .false. | .true., .false. | Switch for buoyancy correlation in the Vreman scheme. | - |
| loneeqn | .false. | .true., .false. | Switch for one-equation sub-grid scheme. | - |
| ldelta | .false. | See DALES. | ||
| lmason | .false. | See DALES. | ||
| cf | 2.5 | See DALES. | ||
| cn | 0.76 | See DALES. | ||
| Rigc | 0.25 | See DALES. | ||
| Prandtl | 0.333 | See DALES. | ||
| lsmagorinsky | .false . | See DALES. | ||
| cs | -1 | See DALES. | ||
| nmason | 2 | See DALES. |
Namelist NAMCHECKSIM¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| tcheck | 0 | See DALES. |
Namelist BC¶
Switches for boundary conditions: momentum (m), temperature (T), humidity (q) and scalars (s).
Lateral BCs (BCx, BCy): 1 = periodic, > 1 special in/outflow conditions
BCs at the top (BCtop): 1 = freeslip, 2 = noslip, 3 = determined by inflow conditions
BCs at the bottom (BCbot; only effective if not covered with road facets): 1 = flux, 2 = wall function
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| BCxm | 1 | Domain boundary condition for momentum in x. | ||
| BCxT | 1 | Domain boundary condition for temperature in x. | ||
| BCxq | 1 | Domain boundary condition for humidity in x. | ||
| BCxs | 1 | Domain boundary condition for scalars in x. | ||
| BCym | 1 | Domain boundary condition for momentum in y. | ||
| BCyT | 1 | Domain boundary condition for temperature in y. | ||
| BCyq | 1 | Domain boundary condition for humidity in y. | ||
| BCys | 1 | Domain boundary condition for scalars in y. | ||
| BCtopm | 1 | Boundary condition for momentum at domain top. | ||
| BCtopT | 1 | Boundary condition for temperature at domain top. | ||
| BCtopq | 1 | Boundary condition for humidity at domain top. | ||
| BCtops | 1 | Boundary condition for scalars at domain top. | ||
| BCbotm | 2 | Boundary condition for momentum at domain bottom. | ||
| BCbotT | 1 | Boundary condition for temperature at domain bottom. | ||
| BCbotq | 1 | Boundary condition for humidity at domain bottom. | ||
| BCbots | 1 | Boundary condition for scalars at domain bottom. | ||
| bctfxm | 0. | Bounary Condition Temperature Flux X-minus-wall. | ||
| bctfxp | 0. | Bounary Condition Temperature Flux X-plus-wall. | ||
| bctfym | 0. | Bounary Condition Temperature Flux Y-minus-wall. | ||
| bctfyp | 0. | Bounary Condition Temperature Flux y-plus-wall. | ||
| bctfz | 0. | Bounary Condition Temperature Flux z top-wall. | ||
| thl_top | -1. | Temperature at the top boundary. | ||
| qt_top | -1. | Humidity at the top boundary. | ||
| wttop | 0. | Temperature flux at the top boundary. | ||
| qts | -1. | Used in modthermodynamics to get a BC for the moisture profile. | ||
| wsvsurfdum | Scalar boundary conditions bottom. | |||
| wsvtopdum | Scalar boundary conditions top. | |||
| wtsurf | -1. | See DALES. Currently need to be set to reasonable values for subroutine bottom. | ||
| wqsurf | -1. | See DALES. Currently need to be set to reasonable values for subroutine bottom. | ||
| thls | -1. | See DALES. Currently need to be set to reasonable values for subroutine bottom. | ||
| z0 | -1. | See DALES. Currently need to be set to reasonable values for subroutine bottom. | ||
| z0h | -1. | Facet roughness length for heat. Currently need to be set to reasonable values for subroutine bottom. |
Namelist ENERGYBALANCE¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| lEB | .false. | .true., .false. | Switch for using the facet energy balance. | - |
| lwriteEBfiles | .false. | .true., .false. | Switch for writing facet temperatures and energy budget to file. | - |
| lconstW | .false. | .true., .false. | Switch whether soil moisture is assumed as constant in time (.true.) or the evaporated water is from the soil (.false.). | - |
| dtEB | 10. | REAL |
Time interval between calculations of facet energy balance. | s |
| bldT | 0. | REAL |
Internal temperature of the buildings, currently also ground temperature at a depth equal to floor facet thickness. | K |
| wsoil | 0. | REAL |
Water content of soil. | kg/m3 |
| wgrmax | 450. | REAL |
Maximum water content. | kg/m3 |
| wwilt | 171. | REAL |
Water content at wilting point. | kg/m3 |
| wfc | 313. | REAL |
Water content at field capacity. | kg/m3 |
| skyLW | 0. | REAL |
Long-wave radiation from the sky. | |
| GRLAI | 2. | REAL |
Leaf area index of a green roof. | |
| rsmin | 110. | REAL |
Minimum resistance of soil/plant. | |
| nwalllayers | 3 | INTEGER |
Number of layers making up each facet. |
Namelist WALLS¶
1 = fixed flux
2 = flux determined by wall function involving temperature
3 = flux determined by neutral wall function (set automatically if ltempeq = .false.)
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| nblocks | 0 | INTEGER |
Number of blocks specified in blocks.inp. |
- |
| nfcts | -1 | INTEGER |
Number of facets specified in facets.inp. |
- |
| iwallmom | 2 | 2, 3 (1 currently not implemented) | Building wall momentum flux. | - |
| iwalltemp | 1 | 1, 2 | Building wall temperature flux. | - |
| iwallmoist | 1 | 1, 2 | Building wall moisture flux. | - |
| iwallscal | 1 | 1, 2 | Building wall scalar flux | - |
Namelist SCALARS¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| nsv | 0 | See DALES. | ||
| lreadscal | .false. | .true., .false. | Switch for reading scalar pollutant field (warm start). Deprecated, will be removed in the future. | - |
| lscasrcr | .false. | .true., .false. | Switch for 2-D network of point sources at lowest level as defined in scals.inp.xxx. | - |
| lscasrcl | .false. | .true., .false. | Switch for passive scalar line source when using canyon geometry. | - |
| lscasrc | .false. | .true., .false. | Switch for passive scalar point source defined by xS,yS,zS,SS,sigS. | - |
| xS | 0 | REAL |
Position of scalar source in x. | m |
| yS | 0 | REAL |
Position of scalar source in y. | m |
| zS | 0 | REAL |
Position of scalar source in z. | m |
| SS | 0. | REAL |
Strength of scalar source. | g/ms |
| sigS | 0. | REAL |
Standard deviation of scalar source. | m |
Namelist DRIVER¶
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| idriver | 0 | 0, 1, 2 | Options for running precursor driver simulations where *driver* files will be written (= 1) and reading a completed driver simulation as the inlet to a simulation (= 2). Default (= 0) will do neither. |
- |
| tdriverstart | 0. | REAL |
Time at which *driver* files start being written. In use for idriver = 1. |
s |
| dtdriver | 0. | REAL |
Timestep at which *driver* file planes are written. In use for idriver = 1. |
s |
| iplane | - | INTEGER |
Index of the position on the x-axis of the plane that will be written to *driver* files. In use for idriver = 1. |
|
| driverstore | 0. | INTEGER |
Number of timesteps (idriver = 1) to be written to *driver* files or (idriver = 2) contained in *driver* files to be read. |
- |
| driverjobnr | - | - | Job number of the *driver* files to be read. These files should be copied into the experiments folder of the driven simulation. In use for idriver = 2. |
- |
| lsdriver | .false. | .true., .false. | Switch for reading scalar driver files. In use for idriver = 2. |
- |
Namelist CHEMISTRY¶
This section will be updated with the next version.
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| lchem | .false. | .true., .false. | Switch for basic chemistry. | - |
| k1 | 0. | Rate constant (O3 + NO -> NO2 + 02 ). Chemistry model parameter. | ||
| JNO2 | 0. | NO2 photolysis rate. Chemistry model parameter. |
Namelist INLET¶
This section will be updated with the next version.
| Name | Default | Possible values | Description | Unit |
|---|---|---|---|---|
| Uinf | 0. | |||
| Vinf | 0. | |||
| inletav | 0. | |||
| lstoreplane | .false. | |||
| linletRA | .false. | |||
| lfixinlet | .false. | |||
| lfixutauin | .false. | |||
| lreadminl | .false. | |||
| di | 0.09 | |||
| dti | ||||
| lwallfunc | .true. | Switch that determines whether wall functions are used to compute the wall-shear stress. Deprecated, only in use in modinlet. Will be removed in the future. |