Application of the 10-moment model to MEMS flows
نویسندگان
چکیده
In this paper we use the 10-moment description of fluid flow to compute internal nozzle flow and external flow around a micro-airfoil in the continuum-transition regime. The numerical method used is Hancock’s scheme, a second-order non-oscillatory Godunov-type scheme; the numerical flux function incorporated is of the Harten-Lax-van Leer (HLL) type and due to Linde (HLLL). The numerical solutions are validated by a comparison to results obtained with Navier-Stokes code, a hybrid DSMC/Navier-Stokes method and an experiment. The 10-moment solution is closed to the experimental results and obtained more efficiently than by the particle method, with considerable speed-up still expected from the use of Discontinuous Galerkin (DG) methods.
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