온도변화에 대한 유체의 점도
원본 위치 <http://upload.wikimedia.org/wikipedia/commons/6/6a/Dynamic_Viscosity_of_Water.png>
온도 변화에 대한 물의 점도 변화
- t - (oF) |
- μ - (lb s/ft2) x 10-7 |
- ν - (ft2/s) x 10-4 |
-40 |
3.29 |
1.12 |
-20 |
3.34 |
1.19 |
0 |
3.38 |
1.26 |
10 |
3.44 |
1.31 |
20 |
3.50 |
1.36 |
30 |
3.58 |
1.42 |
40 |
3.60 |
1.46 |
50 |
3.68 |
1.52 |
60 |
3.75 |
1.58 |
70 |
3.82 |
1.64 |
80 |
3.86 |
1.69 |
90 |
3.90 |
1.74 |
100 |
3.94 |
1.79 |
120 |
4.02 |
1.89 |
140 |
4.13 |
2.01 |
160 |
4.22 |
2.12 |
180 |
4.34 |
2.25 |
200 |
4.49 |
2.4 |
300 |
4.97 |
3.06 |
400 |
5.24 |
3.65 |
500 |
5.8 |
4.51 |
750 |
6.81 |
6.68 |
1000 |
7.85 |
9.30 |
1500 |
9.50 |
15.1 |
Absolute and Kinematic Viscosity of Air at Standard Atmospheric Pressure - SI Units:
- t - (K) |
- μ - (kg/m s) x 10-5 |
- ν - (m2/s) x 10-6 |
100 |
0.6924 |
1.923 |
150 |
1.0283 |
4.343 |
200 |
1.3289 |
7.490 |
250 |
1.488 |
9.49 |
300 |
1.983 |
15.68 |
350 |
2.075 |
20.76 |
400 |
2.286 |
25.90 |
450 |
2.484 |
28.86 |
500 |
2.671 |
37.90 |
550 |
2.848 |
44.34 |
600 |
3.018 |
51.34 |
650 |
3.177 |
58.51 |
700 |
3.332 |
66.25 |
752 |
3.481 |
73.91 |
800 |
3.625 |
82.29 |
850 |
3.765 |
90.75 |
900 |
3.899 |
99.30 |
950 |
4.023 |
108.2 |
1000 |
4.152 |
117.8 |
1100 |
4.44 |
138.6 |
1200 |
4.69 |
159.1 |
1300 |
4.93 |
182.1 |
1400 |
5.17 |
205.5 |
1500 |
5.40 |
229.1 |
1600 |
5.63 |
254.5 |
- 1 N s/m2 = 1 Pa s = 10 poise = 1,000 milliPa s
- 1 m2/s = 1 x 104 cm2/s =1 x 104 stokes = 1 x 106 centistokes
- Kinematic viscosity converter
-
Density of air 1) (lb/ft3) |
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Air temperature (oF) |
Gauge Pressure (psi) |
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0 |
5 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
30 |
0.081 |
0.109 |
0.136 |
0.192 |
0.247 |
0.302 |
0.357 |
0.412 |
0.467 |
0.522 |
0.578 |
0.633 |
40 |
0.080 |
0.107 |
0.134 |
0.188 |
0.242 |
0.295 |
0.350 |
0.404 |
0.458 |
0.512 |
0.566 |
0.620 |
50 |
0.078 |
0.105 |
0.131 |
0.185 |
0.238 |
0.291 |
0.344 |
0.397 |
0.451 |
0.504 |
0.557 |
0.610 |
60 |
0.076 |
0.102 |
0.128 |
0.180 |
0.232 |
0.284 |
0.336 |
0.388 |
0.440 |
0.492 |
0.544 |
0.596 |
70 |
0.075 |
0.101 |
0.126 |
0.177 |
0.228 |
0.279 |
0.330 |
0.381 |
0.432 |
0.483 |
0.534 |
0.585 |
80 |
0.074 |
0.099 |
0.124 |
0.174 |
0.224 |
0.274 |
0.324 |
0.374 |
0.424 |
0.474 |
0.524 |
0.574 |
90 |
0.072 |
0.097 |
0.121 |
0.171 |
0.220 |
0.269 |
0.318 |
0.367 |
0.416 |
0.465 |
0.515 |
0.564 |
100 |
0.071 |
0.095 |
0.119 |
0.168 |
0.216 |
0.264 |
0.312 |
0.361 |
0.409 |
0.457 |
0.505 |
0.554 |
120 |
0.069 |
0.092 |
0.115 |
0.162 |
0.208 |
0.255 |
0.302 |
0.348 |
0.395 |
0.441 |
0.488 |
0.535 |
140 |
0.066 |
0.089 |
0.111 |
0.156 |
0.201 |
0.246 |
0.291 |
0.337 |
0.382 |
0.427 |
0.472 |
0.517 |
150 |
0.065 |
0.087 |
0.109 |
0.154 |
0.198 |
0.242 |
0.287 |
0.331 |
0.375 |
0.420 |
0.464 |
0.508 |
200 |
0.060 |
0.081 |
0.101 |
0.142 |
0.183 |
0.244 |
0.265 |
0.306 |
0.347 |
0.388 |
0.429 |
0.470 |
250 |
0.056 |
0.075 |
0.094 |
0.132 |
0.170 |
0.208 |
0.246 |
0.284 |
0.322 |
0.361 |
0.399 |
0.437 |
300 |
0.052 |
0.070 |
0.088 |
0.123 |
0.159 |
0.195 |
0.230 |
0.266 |
0.301 |
0.337 |
0.372 |
0.408 |
400 |
0.046 |
0.062 |
0.078 |
0.109 |
0.141 |
0.172 |
0.203 |
0.235 |
0.266 |
0.298 |
0.329 |
0.360 |
500 |
0.041 |
0.056 |
0.070 |
0.098 |
0.126 |
0.154 |
0.182 |
0.210 |
0.238 |
0.267 |
0.295 |
0.323 |
600 |
0.038 |
0.050 |
0.063 |
0.089 |
0.114 |
0.140 |
0.165 |
0.190 |
0.216 |
0.241 |
0.267 |
0.292 |
Density of air 1) (lb/ft3) |
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Air temperature (oF) |
Gauge Pressure (psi) |
|
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|
120 |
140 |
150 |
200 |
250 |
300 |
400 |
500 |
700 |
800 |
900 |
1000 |
30 |
0.743 |
0.853 |
0.909 |
1.185 |
1.460 |
1.736 |
2.29 |
1.84 |
3.94 |
4.49 |
5.05 |
5.60 |
40 |
0.728 |
0.836 |
0.890 |
1.161 |
1.431 |
1.702 |
2.24 |
2.78 |
3.86 |
4.40 |
4.95 |
5.49 |
50 |
0.717 |
0.823 |
0.876 |
1.142 |
1.408 |
1.674 |
2.21 |
2.74 |
3.80 |
4.33 |
4.87 |
5.40 |
60 |
0.700 |
0.804 |
0.856 |
1.116 |
1.376 |
1.636 |
2.16 |
2.68 |
3.72 |
4.24 |
4.76 |
5.28 |
70 |
0.687 |
0.789 |
0.840 |
1.095 |
1.350 |
1.605 |
2.12 |
2.63 |
3.65 |
4.16 |
4.67 |
5.18 |
80 |
0.674 |
0.774 |
0.824 |
1.075 |
1.325 |
1.575 |
2.08 |
2.58 |
3.58 |
4.08 |
4.58 |
5.08 |
90 |
0.662 |
0.760 |
0.809 |
1.055 |
1.301 |
1.547 |
2.04 |
2.53 |
3.51 |
4.00 |
4.50 |
4.99 |
100 |
0.650 |
0.747 |
0.795 |
1.036 |
1.278 |
1.519 |
2.00 |
2.48 |
3.45 |
3.93 |
4.42 |
4.90 |
120 |
0.628 |
0.721 |
0.768 |
1.001 |
1.234 |
1.467 |
1.933 |
2.40 |
3.33 |
3.80 |
4.26 |
4.73 |
140 |
0.607 |
0.697 |
0.742 |
0.967 |
1.193 |
1.418 |
1.868 |
2.32 |
3.22 |
3.67 |
4.12 |
4.57 |
150 |
0.597 |
0.686 |
0.730 |
0.951 |
1.173 |
1.395 |
1.838 |
2.28 |
3.17 |
3.61 |
4.05 |
4.50 |
200 |
0.552 |
0.634 |
0.675 |
0.879 |
1.084 |
1.289 |
1.698 |
2.11 |
2.93 |
3.34 |
3.75 |
4.16 |
250 |
0.513 |
0.589 |
0.627 |
0.817 |
1.088 |
1.198 |
1.579 |
1.959 |
2.72 |
3.10 |
3.48 |
3.86 |
300 |
0.479 |
0.550 |
0.586 |
0.764 |
0.941 |
1.119 |
1.475 |
1.830 |
2.54 |
2.90 |
3.25 |
3.61 |
400 |
0.423 |
0.486 |
0.518 |
0.675 |
0.832 |
0.989 |
1.303 |
1.618 |
2.25 |
2.56 |
2.87 |
3.19 |
500 |
0.379 |
0.436 |
0.464 |
0.604 |
0.745 |
0.886 |
1.167 |
1.449 |
2.01 |
2.29 |
2.58 |
2.86 |
600 |
0.343 |
0.394 |
0.420 |
0.547 |
0.675 |
0.802 |
1.057 |
1.312 |
1.822 |
2.08 |
2.33 |
2.59 |
1) Density is based on atmospheric pressure 14.696 psia and molecular weight of air 28.97
- density - 1 lb/ft3 = 16.018 kg/m3
- pressure - 1 psi (lb/in2) = 6,894.8 Pa (N/m2)
- temperature - T(oC) = 5/9[T(oF) - 32]
-
Density of air can also be expressed as
ρ = 1.325 pin Hg / TR (1)
where
ρ = density (lb/ft3)
pin Hg = pressure (inches Hg)
TR = absolute temperature (Rankine)
원본 위치 <http://www.engineeringtoolbox.com/air-temperature-pressure-density-d_771.html>
원본 위치 <http://www.engineeringtoolbox.com/air-absolute-kinematic-viscosity-d_601.html>
Common properties for air are indicated the table below
- t - (oC) |
- ρ - (kg/m3) |
Specific heat capacity - cp - (kJ/kg K) |
Thermal conductivity - l - (W/m K) |
- ν - (m2/s) x 10-6 |
Expansion coefficient - b - (1/K) x 10-3 |
Prandtl's number - Pr - |
-150 |
2.793 |
1.026 |
0.0116 |
3.08 |
8.21 |
0.76 |
-100 |
1.980 |
1.009 |
0.0160 |
5.95 |
5.82 |
0.74 |
-50 |
1.534 |
1.005 |
0.0204 |
9.55 |
4.51 |
0.725 |
0 |
1.293 |
1.005 |
0.0243 |
13.30 |
3.67 |
0.715 |
20 |
1.205 |
1.005 |
0.0257 |
15.11 |
3.43 |
0.713 |
40 |
1.127 |
1.005 |
0.0271 |
16.97 |
3.20 |
0.711 |
60 |
1.067 |
1.009 |
0.0285 |
18.90 |
3.00 |
0.709 |
80 |
1.000 |
1.009 |
0.0299 |
20.94 |
2.83 |
0.708 |
100 |
0.946 |
1.009 |
0.0314 |
23.06 |
2.68 |
0.703 |
120 |
0.898 |
1.013 |
0.0328 |
25.23 |
2.55 |
0.70 |
140 |
0.854 |
1.013 |
0.0343 |
27.55 |
2.43 |
0.695 |
160 |
0.815 |
1.017 |
0.0358 |
29.85 |
2.32 |
0.69 |
180 |
0.779 |
1.022 |
0.0372 |
32.29 |
2.21 |
0.69 |
200 |
0.746 |
1.026 |
0.0386 |
34.63 |
2.11 |
0.685 |
250 |
0.675 |
1.034 |
0.0421 |
41.17 |
1.91 |
0.68 |
300 |
0.616 |
1.047 |
0.0454 |
47.85 |
1.75 |
0.68 |
350 |
0.566 |
1.055 |
0.0485 |
55.05 |
1.61 |
0.68 |
400 |
0.524 |
1.068 |
0.0515 |
62.53 |
1.49 |
0.68 |
원본 위치 <http://www.engineeringtoolbox.com/air-properties-d_156.html>
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