宸ョ▼娴佷綋鍔涘缁忓吀璁＄畻棰?/p>
1
銆?/p>
鐩稿瀵嗗害
0.89
鐨勭煶娌癸紝
娓╁害
20
潞
C
鏃剁殑杩愬姩绮樺害涓?/p>
40cSt
锛?/p>
姹傚姩鍔?/p>
绮樺害涓哄灏戯紵
瑙ｏ細
89
.
0
飥?/p>
飥?
姘?
飦?/p>
飦?/p>
d
谓
锛?/p>
40cSt
锛?/p>
0.4St
锛?/p>
0.4
脳
10
-4
m
2
/s
渭
锛?/p>
谓
蟻
锛?/p>
0.4
脳
10
-4
脳
890
锛?/p>
3.56
脳
10
-2
Pa
路
s
2
銆佸浘绀轰竴骞虫澘鍦ㄦ补闈笂浣滄按骞宠繍鍔紝宸茬煡杩愬姩閫熷害
u=1m/s
锛屾澘涓庡浐
瀹氳竟鐣岀殑璺濈
未
=1
锛屾补鐨勫姩鍔涚矘搴?/p>
渭
锛?/p>
1.147Pa
路
s
锛岀敱骞虫澘鎵�甯﹀姩
鐨勬补灞傜殑杩愬姩閫熷害鍛堢洿绾垮垎甯冿紝
姹備綔鐢ㄥ湪骞虫澘鍗曚綅闈㈢Н涓婄殑绮樻�ч樆鍔?/p>
涓哄灏戯紵
瑙ｏ細
2
3
3
/
10
147
.
1
10
1
1
147
.
1
m
N
dy
du
飩?/p>
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
飥?/p>
飦?
飦?/p>
3
銆佸鍥炬墍绀烘椿濉炴补缂革紝鍏剁洿寰?/p>
D
锛?/p>
12cm
锛屾椿濉炵洿寰?/p>
d
锛?/p>
11.96cm
锛屾椿
濉為暱搴?/p>
L
锛?/p>
14cm
锛?/p>
娌圭殑
渭
锛?/p>
0.65P
锛?/p>
褰撴椿濉炵Щ鍔ㄩ�熷害涓?/p>
0.5m/s
鏃讹紝
璇?/p>
姹傛媺鍥炴椿濉炴墍闇�鐨勫姏
F=
锛?/p>
瑙ｏ細
A
锛?/p>
蟺
dl ,
渭
锛?/p>
0.65P
锛?/p>
0.065 Pa
路
s ,
螖
u
锛?/p>
0.5m/s ,
螖
y=(D-d)/2
锛?/p>