کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8256240 1533950 2018 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nonequilibrium diffusive gas dynamics: Poiseuille microflow
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Nonequilibrium diffusive gas dynamics: Poiseuille microflow
چکیده انگلیسی
We test the recently developed hierarchy of diffusive moment closures for gas dynamics together with the near-wall viscosity scaling on the Poiseuille flow of argon and nitrogen in a one micrometer wide channel, and compare it against the corresponding Direct Simulation Monte Carlo computations. We find that the diffusive regularized Grad equations with viscosity scaling provide the most accurate approximation to the benchmark DSMC results. At the same time, the conventional Navier-Stokes equations without the near-wall viscosity scaling are found to be the least accurate among the tested closures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica D: Nonlinear Phenomena - Volume 371, 15 May 2018, Pages 13-27
نویسندگان
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