Simulations of Low Speed Flows with Unified Flow Solver
نویسندگان
چکیده
Low speed gas flows are studied using a Unified Flow Solver (UFS) that automatically selects continuum-fluiddynamic and kinetic solvers for near-equilibrium and kinetic domains. Direct Numerical Solution of the Boltzmann equation is used in the kinetic domains at moderate and high local Knudsen number, while kinetic schemes for Euler or Navier Stokes equations are used in the continuum domains. The adaptive mesh refinement and automatic domain decomposition are the key components of the UFS. This paper illustrates the UFS capabilities for external and internal subsonic flow problems including temperature and pressure driven flows of interest to micro-devices.
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