U.S. Standard Atmosphere, 1976United States. National Oceanic and Atmospheric Administration, United States Committee on Extension to the Standard Atmosphere National Oceanic and Amospheric [sic] Administration, 1976 - 227 Seiten |
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Seite 18 - W . where y is the ratio of the specific heat of air at constant pressure to that at constant volume.
Seite 14 - The constant q., and hence the second term of equation 37, is zero for all species except atomic oxygen, and is also zero for atomic oxygen above 97 km; the extra term for atomic oxygen is needed below 97 km to generate a maximum in the density-height profile at the selected height of 97 km. This maximum results from the increased loss of atomic oxygen by recombination at lower altitudes. The flux terms for O and O2 are based on, and lead (qualitatively) to the same results as those derived from...
Seite 4 - T' be what they become when the compression is concluded. Then if k denote the ratio of the specific heat of air at constant pressure to the specific heat of air...
Seite 19 - The coefficient of viscosity is defined as a coefficient of internal friction developed where gas regions move adjacent to each other at different velocities. The following expression, basically from kinetic theory, but with 90 60 70 1 О о 260 270 280 290 300 310 320 330 340 Sound speed, m sec
Seite 49 - NOTE: A one- or two-digit number (preceded by a plus or minus sign) following the initial entry of each block indicates the power of ten by which that entry and each succeeding entry of that block should be multiplied. A change of power occurring within a block is indicated by a similar notation. TABLE 3Z_ GEOPOTENTIAL ALTITUDE, ENGLISH UNITS 150 AItitude Accet due to gravity Specific weight Pressure scale height Number density n, ftParticle speed \7, ft sec...
Seite 17 - For a valid average to occur, there must be a sufficient number of particles involved to represent mean conditions. Pressure and temperature gradients within the volume must also be negligible. The analytical expression for V is closely related to that for the speed of sound, and is proportional to the ratio T/M. Thus, in terms of equations...
Seite 12 - For Z equal to 86 km and above the value of pressure is computed as a function of geometric altitude, Z, and involves the altitude profile of kinetic temperature, T, rather than that of...