涓�鍏冩皵浣撳姩鍔涘鍩虹
1.
鑻ヨ姹?/p>
2
2
v
p
飦?/p>
飦?/p>
灏忎簬
0.05
鏃讹紝瀵?/p>
20
鈩冪┖姘旈檺瀹氶�熷害鏄灏戯紵
瑙ｏ細鏍规嵁
2
2
0
v
P
飦?/p>
飦?/p>
=
4
2
M
鐭?/p>
4
2
M
< 0.05
飪?/p>
M<0.45
锛?/p>
s
m
kRT
C
/
343
293
287
4
.
1
飥?/p>
飩?/p>
飩?/p>
飥?/p>
飥?/p>
s
m
MC
v
/
153
343
45
.
0
飥?/p>
飩?/p>
飥?/p>
飥?/p>
鍗冲
20
鈩?/p>
绌烘皵闄愬畾閫熷害涓?/p>
v
<153m/s
锛屽彲鎸変笉鍘嬬缉澶勭悊銆?/p>
2.
鏈変竴鏀剁缉鍨嬪柗鍢达紝宸茬煡
p
1
=140
kPa
锛?/p>
abs
锛?/p>
锛?/p>
p
2
=100
kPa
锛?/p>
abs
锛?/p>
锛?/p>
v
1
=80
m/s
锛?/p>
T
1
=293
K
锛屾眰
2-2
鏂潰涓婄殑閫熷害
v
2
銆?/p>
瑙ｏ細鍥犻�熷害杈冮珮锛屾皵娴佹潵涓嶅強涓庡鐣岃繘琛岀儹閲忎氦鎹紝涓斿綋蹇界暐鑳介噺鎹熷け鏃讹紝鍙寜绛夌喌娴佸姩
澶勭悊锛屽簲鐢ㄧ粨鏋滐細
2
v
=
2
1
2
1
)
(
2010
v
T
T
飥?/p>
飥?/p>
锛屽叾涓?/p>
T
1
=293K
1
飦?/p>
=
1
1
RT
p
=1.66kg/m
3
.
k
P
P
1
1
2
1
2
)
(
飦?/p>
飦?/p>
飥?/p>
=1.31kg/m
3
.
T
2
=
R
P
2
2
飦?/p>
=266 K
瑙ｅ緱锛?/p>
2
v
=242m/s
3.
鏌愪竴缁濈儹姘旀祦鐨勯┈璧暟
M
=0.8
锛屽苟宸茬煡鍏舵粸姝㈠帇鍔?/p>
p
0
=5脳98100
N/m
2
锛屾俯搴?/p>
t
0
=20鈩冿紝璇曟眰
婊炴闊抽�?/p>
c
0
锛屽綋鍦伴煶閫?/p>
c
锛屾皵娴侀�熷害
v
鍜屾皵娴佺粷瀵瑰帇寮?/p>
p
鍚勪负澶氬皯锛?/p>
瑙ｏ細
T
0
=273+20=293K
锛?/p>
C
0
=
0
KRT
=343m/s
鏍规嵁
2
0
2
1
1
M
K
T
T
飥?/p>
飥?/p>
飥?/p>
鐭?/p>
T=260 K
锛?/p>
s
m
kRT
C
/
323
飥?/p>
飥?/p>
锛?/p>
s
m
MC
v
/
4
.
258
飥?/p>
飥?/p>
1
0
0
飥?/p>
飪?/p>
飪?
飪?/p>
飪?/p>
飪?/p>
飪?/p>
飥?/p>
k
k
T
T
p
p
瑙ｅ緱锛?/p>
2
/
98100
28
.
3
m
N
p
飩?/p>
飥?/p>
4.
鏈変竴鍙伴鏈鸿繘鍙ｇ殑绌烘皵閫熷害涓?/p>
v
1
锛屾俯搴︿负
T
1
锛屽嚭鍙ｇ┖姘斿帇鍔涗负
p
2
锛屾俯搴︿负
T
2
锛屽嚭鍙ｆ柇闈?/p>
闈㈢Н涓?/p>
A
2
锛岃嫢杈撳叆椋庢満鐨勮酱鍔熺巼涓?/p>
N
锛岃瘯姹傞鏈鸿川閲忔祦閲?/p>
G
锛堢┖姘斿畾鍘嬫瘮鐑负
c
p
锛?/p>
銆?/p>
瑙ｏ細鐢卞伐绋嬬儹鍔涘鐭ヨ瘑锛?/p>