Advanced deterministic and stochastic kinetic modeling of gaseous microscale transport phenomena
Abstract
The theoretical and computational investigation of non-equilibrium transport phenomena in rarefied gases is one of the most interesting and challenging fields in engineering and physics. In recent years, this topic is gaining constantly increasing attention mainly due to its implementation in a wide range of technological applications, ranging from small scale devices like accelerometers and micro gas analyzers up to large scale gas distribution systems in fusion reactors and particle accelerators. The behavior of gasses in rarefied conditions cannot be captured by conventional fluid dynamic approaches, based on the Navier-Stokes-Fourier equations, due to the limited number of intermolecular collisions leading to a departure from local equilibrium. Modeling must be based on kinetic theory of gases on the basis of the Boltzmann equation, which unavoidably is associated with increased complexity and computational cost. In the present work, advanced kinetic modeling is conducted using the ...
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