基于孔隙率和局部时间步长的城市洪水模拟
李薇,邹吉玉,胡鹏
Urban flood simulation based on porosity and local time step
Wei LI,Ji-yu ZOU,Peng HU
表 1
不同方案的计算值与实测值的误差比较
Tab.1
Comparison of errors between calculated and measured values by different solutions
方案
${ { {\delta} }_{ {\rm{h} }g} }$
/m
${ { {\delta} }_{ {\rm{hs} } } }$
/m
${ { {\delta} }_{\rm{V} } }$
/（m·s
–1
）
测点1
测点18
测点44
测点55
t
=4 s
t
=5 s
t
=6 s
t
=10 s
t
=4 s
t
=5 s
t
=6 s
t
=10 s
C_C
0.042
0.015
0.022
0.032
0.030
0.023
0.022
0.013
0.466
0.253
0.196
0.135
P_CG
0.032
0.019
0.037
0.027
0.034
0.036
0.038
0.024
0.325
0.292
0.317
0.194
P_CN
0.030
0.017
0.028
0.026
0.033
0.041
0.040
0.023
0.297
0.384
0.288
0.263
P_MN
0.038
0.013
0.028
0.023
0.023
0.017
0.021
0.014
0.309
0.212
0.144
0.121
P_RN
0.034
0.013
0.031
0.024
0.023
0.017
0.020
0.014
0.330
0.205
0.174
0.159