Windfarm_opt -> no difference if turned ON or OFF

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Windfarm_opt -> no difference if turned ON or OFF

Postby stefmuc » Tue Jun 07, 2016 10:28 am

Hi Guys,

I am fairly new to WRF and have a question regarding the usage of the windfarm_opt.

I am using WRF 3.7.1 and the following namelist (below).

I simulate windspeeds around a real windfarm and also have measurement data from the windfarm hubs to compare it with.
The wind speed on this particular day was between 5-10 m/s during the 24h.
The wind turbines are correctely defined in my opinion and the preprocessors and simulation do not reply any error.

Unfortunately and strangely when applying the windfarm_opt = 1 physics scheme, there is no difference in the resutls and it is that same as when the simulation is run with windfarm_opt = 0 (turned off).

Do you see any mistakes in my namelist that might lead to this? I suspect that one setting might be canceling the effect of the windfarm_opt = 1.

Best Regards and thanks a lot for your help!

Stefan

&time_control
run_days = 0,
run_hours = 24,
run_minutes = 0,
run_seconds = 0,
start_year = 2016, 2016, 2016, 2016, 2016,
start_month = 01, 01, 01, 01, 01,
start_day = 26, 26, 26, 26, 26,
start_hour = 18, 18, 18, 18, 18,
start_minute = 00, 00, 00, 00, 00,
start_second = 00, 00, 00, 00, 00,
end_year = 2016, 2016, 2016, 2016, 2016,
end_month = 01, 01, 01, 01, 01,
end_day = 27, 27, 27, 27, 27,
end_hour = 18, 18, 18, 18, 18,
end_minute = 00, 00, 00, 00, 00,
end_second = 00, 00, 00, 00, 00,
interval_seconds = 21600
input_from_file = .true.,.true.,.true.,.true.,.true.,
history_interval = 180, 60, 60, 60, 10,
frames_per_outfile = 1000, 1000, 1000, 1000, 1000,
restart = .false.,
restart_interval = 21600,
auxhist1_outname = "wrfauxout1_d<domain>.<date>",
auxhist1_interval = 180, 180, 180, 180, 10,
io_form_auxhist1 = 2,
frames_per_auxhist1 = 1000,
auxhist2_outname = "wrfauxout2_d<domain>.<date>",
auxhist2_interval = 180, 180, 180, 180, 10,
io_form_auxhist2 = 2,
frames_per_auxhist2 = 1000,
auxhist5_outname = "wrfauxout5fast_d<domain>.<date>",
auxhist5_interval = 180, 180, 180, 180, 10,
io_form_auxhist5 = 2,
frames_per_auxhist5 = 1000,
auxhist6_outname = "wrfauxout6fast_d<domain>.<date>",
auxhist6_interval = 180, 180, 180, 180, 10,
io_form_auxhist6 = 2,
frames_per_auxhist6 = 1000,
auxhist7_outname = "wrfauxout7fast_d<domain>.<date>",
auxhist7_interval = 180, 180, 180, 180, 10,
io_form_auxhist7 = 2,
frames_per_auxhist7 = 1000,
io_form_history = 2
io_form_restart = 2
io_form_input = 2
io_form_boundary = 2
ignore_iofields_warning = .true.,
debug_level = 1000
rsmas_data_path = 1
/

&domains
time_step = 120,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 5,
e_we = 74, 112, 112, 112, 112,
e_sn = 61, 97, 97, 97, 97,
e_vert = 150, 150, 150, 150, 150,
p_top_requested = 5000,
num_metgrid_levels = 27,
num_metgrid_soil_levels = 4,
dx = 30000.0, 10000, 3333.33, 1111.11, 370.37,
dy = 30000.0, 10000, 3333.33, 1111.11, 370.37,
grid_id = 1, 2, 3, 4, 5,
parent_id = 0, 1, 2, 3, 4,
i_parent_start = 1, 20, 35, 37, 37,
j_parent_start = 1, 15, 34, 32, 32,
parent_grid_ratio = 1, 3, 3, 3, 3,
parent_time_step_ratio = 1, 3, 3, 3, 3,
feedback = 0,
smooth_option = 0
/

&physics
mp_physics = 3, 3, 3, 3, 3,
ra_lw_physics = 1, 1, 1, 1, 1,
ra_sw_physics = 1, 1, 1, 1, 1,
radt = 30, 30, 30, 30, 30,
sf_sfclay_physics = 2, 2, 2, 2, 2,
sf_surface_physics = 2, 2, 2, 2, 2,
bl_pbl_physics = 2, 2, 2, 2, 2,
topo_wind = 2, 2, 2, 2, 2,
bldt = 0, 0, 0, 0, 0,
cu_physics = 1, 0, 0, 0, 0,
cudt = 5, 5, 5, 5, 5,
isfflx = 1,
ifsnow = 1,
icloud = 1,
windfarm_opt = 1,
windfarm_ij = 0,
surface_input_source = 1,
num_soil_layers = 4,
sf_urban_physics = 0, 0, 0, 0, 0,
/

&fdda
/

&dynamics
w_damping = 0,
diff_opt = 1, 1, 1, 1, 1,
km_opt = 4, 4, 4, 4, 4,
diff_6th_opt = 0, 0, 0, 0, 0,
diff_6th_factor = 0.12, 0.12, 0.12, 0.12, 0.12,
base_temp = 290.
damp_opt = 0,
zdamp = 5000., 5000., 5000., 5000., 5000.,
dampcoef = 0.2, 0.2, 0.2, 0.2, 0.2,
khdif = 0, 0, 0, 0, 0,
kvdif = 0, 0, 0, 0, 0,
non_hydrostatic = .true., .true., .true., .true., .true.,
moist_adv_opt = 1, 1, 1, 1, 1,
scalar_adv_opt = 1, 1, 1, 1, 1,
/

&bdy_control
spec_bdy_width = 5,
spec_zone = 1,
relax_zone = 4,
specified = .true., .false.,.false., .false.,.false.,
nested = .false., .true., .true., .true., .true.,
/

&grib2
/

&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/
stefmuc
 
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Joined: Tue Jun 07, 2016 10:10 am

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