direct numerical simulation

[də¦rekt nü¦mer·ə·kəl ‚sim·yə′lā·shən] (fluid mechanics) Simulation of fluid flow that is carried out through numerical integration of the Navier-Stokes equation in a two-stage process: a temporal approximation involving the splitting of the equation into linear and nonlinear parts and the approximation of time derivatives with finite differences, and a spatial approximation involving the replacement of spatial derivatives with finite difference, finite element, spectral, or hybrid numerical approximations. Abbreviated DNS.

单词	direct numerical simulation
释义	direct numerical simulation direct numerical simulation [də¦rekt nü¦mer·ə·kəl ‚sim·yə′lā·shən] (fluid mechanics) Simulation of fluid flow that is carried out through numerical integration of the Navier-Stokes equation in a two-stage process: a temporal approximation involving the splitting of the equation into linear and nonlinear parts and the approximation of time derivatives with finite differences, and a spatial approximation involving the replacement of spatial derivatives with finite difference, finite element, spectral, or hybrid numerical approximations. Abbreviated DNS. AcronymsSeeDNS
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