Computation of the Prandtl numbers for gases at low density. (a) By using the Eucken formula and
Question:
Computation of the Prandtl numbers for gases at low density.
(a) By using the Eucken formula and experimental heat capacity data, estimate the Prandtl number at 1atm and 300K for each of the gases listed in the table.
(b) For the same gases, compute the Prandtl number directly by substituting the following values of the physical properties into the defining formula Pr = Cpµ/k, and compare the values with the results obtained in (a). All properties are given at low pressure and 300K.
Transcribed Image Text:
t, x 10 μχ 10 J/kg · K Gas Pa·s W/m·K Не 5.193 1.995 0.1546 0.5204 2.278 0.01784 Ar H2 14.28 0.8944 0.1789 1.854 0.02614 Air 1.001 CO, но 1.506 0.01661 0.8484 1.864 1.041 0.02250
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