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Accurate calculation of diffusion and shear viscosity coefficients for H2H mixtures

โœ Scribed by G.B. Clark; F.R.W. McCourt

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
422 KB
Volume
236
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Close-coupled scattering calculations of binary diffusion and shear viscosity coefficients have been made for H-H 2 mixtures. Cross sections obtained from these scattering calculations give directly the binary diffusion coefficient in its lowest kinetic theory approximation. Additional data are required for the calculation of the shear viscosity. Appropriate cross sections for pure H 2 have been obtained from experiment, while those for H have been calculated. Binary diffusion and viscosity coefficients have been calculated for H-H 2 mixtures for the temperature range 40-2200 K. The value DH2_ n = 2.13 cm 2 s-1 obtained at 295 K is in excellent agreement with experiment.

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