大气非静力数值模式中声波的阻尼和压缩
DAMPING AND COMPRESSING TECHNIQUES OF SOUND WAVES IN NONHYDROSTATIC ATMOSPHERIC NUMERICAL MODEL
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摘要: 介绍大气非静力弹性模式中声波的阻尼和压缩方法。分析和模拟试验的结果表明,声波的阻尼和压缩能够对模式的解的振幅起到一定的衰减作用,有利于保证模式的计算稳定性和减少计算量。Abstract: The damping and compressing techniques of sound waves in nonhydyostatic atmospheric numerical model are introduced in this paper. Results of analysis and simulated tests show that the damping and compressing of the sound wave can weaken the solution of the model, and is benefical to computational stability of the model and saves CPU times.
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