Numerical problems in WRF 3.7.1

Introduction to the forum

Numerical problems in WRF 3.7.1

Postby Beki93 » Sun Jan 22, 2017 8:20 pm

Hello,
I'm starting WRF user and I have some problems with my simulation with high resolution, I have tried with different time_step and with adaptive time step but still I have some problems in third domain (probably CFL issue).
Example of plot:
https://drive.google.com/file/d/0B9pPwK ... sp=sharing

Thank you for any help in advance

My namelist.input:
&time_control
run_days = 02,
run_hours = 0,
run_minutes = 0,
run_seconds = 0,
start_year = 2016, 2016, 2016,
start_month = 06, 06, 06,
start_day = 20, 20, 20,
start_hour = 06, 06, 06,
start_minute = 00, 00, 00,
start_second = 00, 00, 00,
end_year = 2016, 2016, 2016,
end_month = 06, 06, 06,
end_day = 22, 22, 22,
end_hour = 06, 06, 06,
end_minute = 00, 00, 00,
end_second = 00, 00, 00,
interval_seconds = 21600
input_from_file = .true.,.true.,.true.,
history_interval = 60, 60, 15,
frames_per_outfile = 1000, 1000, 1000,
restart = .false.,
restart_interval = 360,
io_form_history = 2
io_form_restart = 2
io_form_input = 2
io_form_boundary = 2
debug_level = 0
/


/
&domains
use_adaptive_time_step = .true.,
step_to_output_time = .true.,
target_cfl = 1.2, 1.2, 1.2,
target_hcfl = .84, .84, .84,
max_step_increase_pct = 5, 51, 51,
starting_time_step = 25, 5, 1,
max_time_step = -1, -1, -1,
min_time_step = -1, -1, -1,
adaptation_domain = 3,
time_step = 30,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 3,
e_we = 201, 201, 201,
e_sn = 261, 321, 321,
e_vert = 30, 30, 30,
p_top_requested = 5000,
num_metgrid_levels = 32,
num_metgrid_soil_levels = 4,
dx = 12500, 2500, 500,
dy = 12500, 2500, 500,
grid_id = 1, 2, 3,
parent_id = 0, 1, 2,
i_parent_start = 1, 121, 73,
j_parent_start = 1, 99, 38,
parent_grid_ratio = 1, 5, 5,
parent_time_step_ratio = 1, 5, 5,
feedback = 1,
smooth_option = 1,
/
&physics
mp_physics = 4, 4, 4,
ra_lw_physics = 4, 4, 4,
ra_sw_physics = 4, 4, 4,
radt = 12, 12, 12,
sf_sfclay_physics = 1, 1, 1,
sf_surface_physics = 2, 2, 2,
bl_pbl_physics = 1, 1, 1,
topo_wind = 0, 0, 1,
slope_rad = 0, 0, 1,
topo_shading = 0, 0, 1,
shadlen = 25000,
ysu_topdown_pblmix = 1,
bldt = 0, 0, 0,
cu_physics = 1, 1, 0,
cudt = 0, 0, 0,
isfflx = 1,
ifsnow = 1,
icloud = 1,
surface_input_source = 1,
num_soil_layers = 4,
sf_urban_physics = 0, 0, 0,
/
&fdda
/
&dynamics
w_damping = 1,
diff_opt = 1, 1, 1,
km_opt = 4, 4, 4,
diff_6th_opt = 0, 0, 0,
diff_6th_factor = 0.12, 0.12, 0.12,
base_temp = 290.
damp_opt = 1,
zdamp = 5000., 5000., 5000.,
dampcoef = 0.1, 0.1, 0.1,
epssm = 0.5, 0.5, 0.5,
khdif = 0, 0, 0,
kvdif = 0, 0, 0,
non_hydrostatic = .true., .true., .true.,
moist_adv_opt = 1, 1, 1,
scalar_adv_opt = 1, 1, 1,
/
&bdy_control
spec_bdy_width = 5,
spec_zone = 1,
relax_zone = 4,
specified = .true., .false.,.false.,
nested = .false., .true., .true.,
/
&grib2
/
&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/
Beki93
 
Posts: 1
Joined: Sun Jan 22, 2017 8:00 pm

Return to Welcome to the WRF User's Forum

Who is online

Users browsing this forum: No registered users and 3 guests