Further namoptions cleanup

[bss116]

This issue is about cleaning up the list of parameters that can be set in the namoptions input file. There are a few points up for discussion (we might also want to break them into separate issues):

&RUN

• lles = .true. Discuss whether to remove non-LES functionality
• randu = 0. Default changed from 0.5 in DALES. Should we change back?
• randthl = 0. Default changed from 0.1 in DALES. Should we change back?
• randqt = 0. Default changed from 1e-5 in DALES. Should we change back?
• courant = -1 Code 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. Can we get rid of it?
• lreadmean = .false. Potentially deprecated. Should we remove it?
• lper2inout = .false. Potentially deprecated. Should we remove it?
• lwalldist = .false. Switch to calculate wall effects for the subgrid models (Smagorinsky or one equation). Potentially deprecated. Should we remove it?
• lstratstart = .false. Description missing.

&BC

• wtsurf = -1. What to do with subroutine bottom?
• wqsurf = -1.
• thls = -1.
• z0 = -1.
• z0h = -1.
• !wsvsurfdum = Should be reviewed when checking scalars implementation
• !wsvtopdum =

&WALLS

• iwallmom = 2 Should we set default to 3? (neutral wall function) Will need to test this first! Edit: We decided to remove option 3 from the user documentation as the code chooses this automatically for neutral simulations

&PHYSICS

• igrw_damp = 2 Gravity wave dumping. We use = 0 (no damping).

&DYNAMICS

• iadv_tke = -1 Only applicable if loneeqn = True. Consider removing this option?
• iadv_qt = -1 Should we extend and test use of option 7 (Kappa scheme)?
• iadv_sv = -1 Consider removing option 1 (upwind scheme)?
• ipoiss = 1 Should be set to ipoiss = 0 when bug in EB is fixed (Issue FFT not working with energy balance #61).

&NAMSUBGRID

• loneeqn = .false. Should we remove this?

&INLET

• linletRA = .false. These parameters are associated with the turbulent inlet generation. They are untested with the current version of the code. Remove or update?
• lfixinlet = .false.
• lfixutauin = .false.

&SCALARS

• lreadscal = .false. Deprecated, should we remove?
• lscasrc = .false. Description missing
• lscasrcl = .false. Description missing

general:

• ensure consistent spacing before and after = when namoptions are changed by da_inp.sh and da_prep.sh.