Abstract
Half-space problems in the kinetic theory of gases are of great importance in the study of the asymptotic behavior of solutions of boundary value problems for the Boltzmann equation for small Knudsen numbers. They provide the boundary conditions for the fluid-dynamic-type equations and Knudsen-layer corrections to the solution of the fluid-dynamic-type equations in a neighborhood of the boundary. These problems are well studied for single species, including some important contributions by Carlo Cercignani, and it is well-known that the number of additional conditions needed to be imposed depends on different regimes for the Mach number (corresponding to subsonic/supersonic evaporation/condensation). However, the case of mixtures is not as well studied in the literature. We will address some extensions of the results for half-space problems for single species to the case of multicomponent mixtures.
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Acknowledgements
The author is indebted to Prof. F. Golse for valuable discussions and kind hospitality during visits to Paris and acknowledges the support by French Institute in Sweden (through the FRÖ program in 2016) and SveFUM (in 2017 and 2019) for his visits.
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Bernhoff, N. (2023). Half-Space Problems for the Boltzmann Equation of Multicomponent Mixtures. In: Barbante, P., Belgiorno, F.D., Lorenzani, S., Valdettaro, L. (eds) From Kinetic Theory to Turbulence Modeling. INdAM 2021. Springer INdAM Series, vol 51. Springer, Singapore. https://doi.org/10.1007/978-981-19-6462-6_4
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DOI: https://doi.org/10.1007/978-981-19-6462-6_4
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