Page 62 - Mechanical Engineers' Handbook (Volume 4)

3 Fluid Statics 51

Figure 8 U.S. standard atmosphere.

Table 2 Defining Properties of the U.S. Standard Atmosphere
Lapse
Altitude Temperature Type of Rate g Pressure, p Density,
3
2
(m) ( C) Atmosphere ( C/km) (m/s ) n (Pa) (kg/m )
0 15.0 1.013 10 5 1.225
Polytropic 6.5 9.790 1.235
11,000 56.5 2.263 10 4 3.639 10 1
Isothermal 0.0 9.759
20,000 56.5 5.475 10 3 8.804 10 2
Polytropic 1.0 9.727 0.972
32,000 44.5 8.680 10 2 1.323 10 2
Polytropic 2.8 9.685 0.924
47,000 2.5 1.109 10 2 1.427 10 3
Isothermal 0.0 9.654
52,000 2.5 5.900 10 1 7.594 10 4
Polytropic 2.0 9.633 1.063
61,000 20.5 1.821 10 1 2.511 10 4
Polytropic 4.0 9.592 1.136
79,000 92.5 1.038 2.001 10 5
Isothermal 0.0 9.549
88,743 92.5 1.644 10 1 3.170 10 6