Compute relative temperature ratio
th = rrtheta(t0, mach, g)
th = rrtheta(t0, mach, g) computes m temperature
relative ratios, th, from m static
temperatures, t0, m Mach numbers, mach,
and m specific heat ratios, g. t0 must
be in kelvin.
Determine the relative temperature ratio for three temperatures:
th = rrtheta([273.15 310.9278 373.15], 0.5, 1.4)
th =
0.9953 1.1330 1.3597Determine the relative temperature ratio for three temperatures and three different heat ratios:
th = rrtheta([273.15 310.9278 373.15], 0.5, [1.4 1.35 1.4])
th =
0.9953 1.1263 1.3597Determine the relative temperature ratio for three temperatures at three different conditions:
th = rrtheta([273.15 310.9278 373.15], [0.5 1 2], [1.4 1.35 1.4])
th =
0.9953 1.2679 2.3310For cases in which total temperature ratio is desired (Mach number is nonzero), the total temperature is calculated assuming perfect gas (with constant molecular weight, constant pressure specific heat, and constant specific heat ratio) and dry air.
Aeronautical Vestpocket Handbook, United Technologies Pratt & Whitney, August, 1986