A small-scale dynamic model using a terrain-following coordinate transformation
作者： Terry L. Clark
DOI: 10.1016/0021-9991(77)90057-2
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摘要: Abstract This paper describes a three-dimensional finite-difference model of air flow over an irregular lower surface. The is nonhydrostatic and the anelastic approximation has been used to filter sound waves. Second-order difference equations are employed which provide excellent momentum energy budgets. An outflow radiation boundary condition using generalized Kreiss extrapolation scheme designed implemented. Some two-dimensional applications “Witch Agnesi” mountain barrier described. Comparison with linear theory Queney indicates, for cases treated, that nonlinearity first-order effect on resulting flow.
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