/ &dynamics w_damping = 0, 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 = 0, z_damp = 5000., 5000., 5000., dampcoef = 0.2, 0.2, 0.2, damp_opt = 0, 0, 0, damp_opt = ...
这是因为计算时间步长导致的,网格分辨率较高,或时间分辨率较高时,可能会导致计算不收敛从而导致报错,可以通过缩短时间步长(时间步长一般为2~6倍的D1x),还可以在&dynamics中添加epssm =0.2,或w_damping = 1,二者都是防止垂向积分过强。
此选项用于略微前移垂直压力梯度(或声波)的中心,以抑制三维发散。 4.设置 w_damping = 1 也可以尝试设置 w_damping = 1。该参数是垂直速度阻尼。阻尼为0时,w增加过快,导致不稳定,溢出了计算机计算上限。 二、磁盘空间不足 有时可能是磁盘空间不足的结果。检查一下电脑还有多少空间可用于要写入的文件。如果域...
GRID_SFDDA=0::SGFDDA_INTERVAL_M=0::SGFDDA_END_H=0::HYPSOMETRIC_OPT=2::USE_THETA_M=0::SF_URBAN_PHYSICS=0::SHCU_PHYSICS=0::MFSHCONV=0::FEEDBACK=1::SMOOTH_OPTION=0::SWRAD_SCAT=1.0f::W_DAMPING=0::DT=180.0f::RADT=30.0f::BLDT=0.0f::CUDT=5.0f::AER_OPT=0::SWINT_OPT=0:...
w_damping=1,diff_opt=2,km_opt=4,diff_6th_opt=2,diff_6th_factor=0.12,damp_opt=0,base_temp=290.zdamp=5000.,5000.,dampcoef=0.2,0.2,khdif=0,0,kvdif=0,0,non_hydrostatic=.true.,.true.,time_step_sound=6,6,h_mom_adv_order=5,5,v_mom_adv_order=5,5,h_sca_adv_order=5,5,v...
w_damping = 0, diff_opt = 1, 1, 1, 1, km_opt = 4, 4, 4, 4, diff_6th_opt = 0, 0, 0, 0, diff_6th_factor = 0.12, 0.12, 0.12, 0.12, base_temp = 290. damp_opt = 3, zdamp = 5000., 5000., 5000., 5000., dampcoef = 0.2, 0.2, 0.2 ,0.2, khdif = 0, 0, 0...
(4)设置 w_damping = 1,增加垂直速度阻尼,以减缓垂直速度。 以上就是WRF官方论坛给出的CFL错误判断方法和解决措施,你以为这就够了吗?我本来也这样以为,遇到CFL报错,减小时间步长就好,如果还报错,那就是你时间步长不够小,知道遇见了它... 那天我想跑一个嵌套,WRF-UCM的嵌套,网格的设计是27km,9km,3km,1km...
A few physics options sets (plus model top and the number of vertical levels) are provided here for reference. They may provide a good starting point for testing the model in your application. Also note that other factors will affect the outcome; for example, the domain setup, the distributi...
cudt = 5, 5, 5, icloud = 1, num_land_cat = 21, sf_urban_physics = 0, 0, 0, / &fdda / &dynamics hybrid_opt = 2, w_damping = 0, 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. ...
w_damping=0, 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=0, z_damp=5000.,5000.,5000., dampcoef=0.2,0.2,0.2, damp_opt=0,0,0, damp_opt=0,0,0,