海浪外观谱及其平衡域
Outer frequency spectrum of sea wavesand its equilibrium range
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摘要: 定义了海浪能量的广义或n阶外观分布,导出了n阶海浪外观谱的解析形式,讨论了n阶外观谱的平衡域.结果表明,n阶外观谱的平衡域指数为-(3+n);平衡域指数上界为-3.任何波动现象,只要Fourier迭加原理和射线理论对它们的描述足够准确,则本文的结论皆成立.Abstract: The present paper defines the generalized apparent energy distribution and derives the analytical form of the so-called generalized outer frequency spectrum of nth order apparent frequency spectrum.It is shown the generalized outer frequency spectrum has an equilibrium range with an exponent-(n+3) and the upper limit of the exponent is -3.The results of this paper are universal and are applicable for any other wave phenomena if the ray theory of waves and the Longuet-Higgins' linear random wave model are exact enough for their description.
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Key words:
- Outer frequency spectrum /
- inner frequency spectrum /
- equilibrium range
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