대학기계학회 2004년도 춘계학술대회 논문집
Vacuum pump
Compressor
Reservoir (p
os)
Reservoir Reservoir
Reservoir (p
op)
Valve Valve
Valve Valve
To air Nozzle transducer
transducer
transducer mirror Lighter source
p
atransducer
camera CCD Computer hole Pin
D= 81.31
9
16 10 5 10 57.2
Primary Prima ry jet
To vacuum tank
Pressure tap
5.8319 .15
119
81.31 10
10 10
5 10 10 10
57.2
14
Primary
Flow
Primary jetTo vacuum tank
Pressure tap
De=
14.25
x
Pressure Outlet Pressure
Inlet
45 D e
40 D e 대학기계학회 2004년도 춘계학술대회 논문집
0.0 1.0 2.0 3.0 4.0 x/D e
0.0 0.2 0.4 0.6 0.8 1.0 1.2
p
w/p
aNPRs
0.2 (Exp.) 0.4 (Exp.) 0.6 (Exp.) 0.8 (Exp.) 1.0 (Exp.) 0.2 (Com.) 0.4 (Com.) 0.6 (Com.) 0.8 (Com.) 1.0 (Com.)
0.0 1.0 2.0 3.0 4.0
x/D e 0.0
0.2 0.4 0.6 0.8 1.0 1.2
p
w/p
aNPRs 0.2 (Exp.) 0.4 (Exp.) 0.6 (Exp.) 0.8 (Exp.) 1.0 (Exp.) 0.2 (Com.) 0.4 (Com.) 0.6 (Com.) 0.8 (Com.) 1.0 (Com.)
0.0 1.0 2.0 3.0 4.0
x/D e 0.0
0.2 0.4 0.6 0.8 1.0 1.2
p
w/p
aNPRs 0.2 (Exp.) 0.4 (Exp.) 0.6 (Exp.) 0.8 (Exp.) 1.0 (Exp.) NPR
s0.2 (Com.) 0.4 (Com.) 0.6 (Com.) 0.8 (Com.) 1.0 (Com.)
0.0 2.0 4.0 6.0 8.0
x/De 0.0
0.5 1.0 1.5
p w
/p a
NPRs 0.2 (Exp.) 0.4 (Exp.) 0.6 (Exp.) 0.8 (Exp.) 1.0 (Exp.) NPRs
0.4 (Com.) 0.6 (Com.) 0.8 (Com.) 1.0 (Com.)
0.0 2.0 4.0 6.0 8.0
x/De 0.0
0.5 1.0 1.5
p w
/p a
NPRs 0.2 (Exp.) 0.4 (Exp.) 0.6 (Exp.) 0.8 (Exp.) 1.0 (Exp.) NPRs
0.2 (Com.) 0.4 (Com.) 0.6 (Com.) 0.8 (Com.) 1.0 (Com.)
0.0 2.0 4.0 6.0 8.0
x/De 0.0
0.5 1.0 1.5
p w
/p a
NPRs 0.2 (Exp.) 0.4 (Exp.) 0.6 (Exp.) 0.8 (Exp.) 1.0 (Exp.) NPRs
0.2 (Com.)
0.4 (Com.)
0.6 (Com.)
0.8 (Com.)
1.0 (Com.)
1.58
1.56e-04
3.53e+05 Pa
8.79e+04 Pa
446 m/s
4.30e-02 m/s
1.61e-04
1.72 3.53e+05 Pa
7.15e+04 Pa
471 m/s
1.69e-02 m/s
1.91
7.92e-05
3.53e+05 Pa
5.31e+04 Pa
502 m/s
1.03e-02 m/s
2.16
4.27e-05
3.53e+05 Pa
3.61e+04 Pa
537 m/s
5.44e-03 m/s
2.58
5.27e-06
3.53e+05 Pa
1.69e+04 Pa
583 m/s
5.90e-04 m/s
0.2 0.3 0.4 0.5 0.6
NPRs 0.0
4.0 8.0 12.0 16.0
α(de g. )
NPRp
3.0 (Exp.) 3.6 (Exp.) 4.0 (Exp.) 5.0 (Exp.)NPRp
3.0 (Com.) 3.6 (Com.) 4.0 (Com.)0.2 0.3 0.4 0.5 0.6
NPRs 0.0
4.0 8.0 12.0 16.0
α(de g. )
NPRp
3.0 (Exp.) 3.6 (Exp.) 4.0 (Exp.) 5.0 (Exp.)NPRp
3.0 (Com.) 3.6 (Com.) 4.0 (Com.)0.2 0.3 0.4 0.5 0.6
NPRs 0.0
1.0 2.0 3.0 4.0
L a /D e
NPRp
3.0 (Exp.) 3.6 (Exp.) 4.0 (Exp.) 5.0 (Exp.)NPRp
3.0 (Com.) 3.6 (Com.) 4.0 (Com.)0.2 0.3 0.4 0.5 0.6
NPRs 0.0
1.0 2.0 3.0 4.0
L a /D e
NPRp
3.0 (Exp.) 3.6 (Exp.) 4.0 (Exp.) 5.0 (Exp.)NPRp
3.0 (Com.) 3.6 (Com.) 4.0 (Com.)0.2 0.4 0.6 0.8 1.0
NPRs 0.6
0.8 1.0 1.2 1.4
p w
/p a
0.2 0.4 0.6 0.8 1.0
NPRs 0.6
0.8 1.0 1.2 1.4
p w
/p a
0.2 0.4 0.6 0.8 1.0
NPRs 0.6
0.8 1.0 1.2
p w
/p a
0.2 0.4 0.6 0.8 1.0
NPRs 0.6
0.8 1.0 1.2
p w
/p a
대학기계학회 2004년도 춘계학술대회 논문집
