Thermomagnetic Force in Polyatomic Gases
نویسندگان
چکیده
*Work supported by the National Science Foundation. ~Alfred P. Sloan Fellows. J. Lebowitz and P. Resibois, Phys. Rev. 139, A1101 (1965), and references cited therein. H. Mori, Progr. Theoret. Phys. (Kyoto) 33, 423 (1965). 3P. Mazur and I. Oppenheim, J. Phys. Soc. Japan Suppl. 26, 35 (1969) ~ R. J. Rubin, Phys. Rev. 131, 964 (1963). Professor Zwanzig has studied (unpublished notes) Rubin's model in great detail using a projection operator entirely different from the two discussed here. 5P. Mazur and E. Montroll, J. Math. Phys. 1, 70 (1960); G. W. Ford, M. Kac, and P. Mazur, ibid. 6, 504 (1965). P. Ullersma, Physica 32, 27 (1966); 32, 56 (1966); 32, 74 (1966). P. Mazur and E. Braun, Physica 30, 1973 (1964).
منابع مشابه
Thermomagnetic Force for Small Spheroidal Particles '1'
The thermomagnetic force for small spheroidal particles is given in the Waldmann limit. In this limit the force is proportional to the surface area of the particle, and depends on the gas pressure p and on the magnetic field strength H only via H/p. For the gases HD, CH 4 , CO and N2 the ratio of the thermomagnetic and thermal forces is calculated from Senftleben-Beenakker effect data. It is po...
متن کاملForces on Small Particles in Nonhomogeneous Polyatomic Gases
Waldmann's work on forces on small particles suspended in a nonhomogeneous monatomic gas is extended to a polyatomic gas of rotating molecules. Under the assumption that the coefficient of diffuse reflection is equal to 1, the force the gas exerts on a particle is calculated from an expansion of the distribution function. In general, this force consists of three contributions which are determin...
متن کاملKinetic model and moment method for polyatomic gases
A model kinetic equation for accurate description of rarefied polyatomic gases is introduced. The collisions of polyatomic gas particles are modeled by a two term collision operator, one modeling only exchange of translational energy and the other modeling exchange of both translational and internal energies. The proposed kinetic model, which is an extension of the Rykov and Shakov models, pred...
متن کاملOn the ellipsoidal statistical model for polyatomic gases
Abstract The aim of this article is to construct a BGK-type model for polyatomic gases which gives in the hydrodynamic limit the proper transport coefficient. Its construction relies upon a systematic procedure: minimizing Boltzmann entropy under suitable moments constraints ([20, 9]). The obtained model corresponds to the ellipsoidal statistical model introduced in [2]. We also study the retur...
متن کاملCauchy Problem for the Ellipsoidal Bgk Model for Polyatomic Particles
The derivation of the celebrated Boltzmann equations relies heavily on the assumption that the gas consists of monatomic particles, which is not the case for most of the realistic gases. Efforts to derive Boltzmann type kinetic models soon confront with the difficulty that it is virtually impossible to write the pre and post collision velocities in an explicit form, since polyatomic molecules c...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011