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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Generation of internal tides by an oscillating background flow along a corrugated slope
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Generation of internal tides by an oscillating background flow along a corrugated slope

机译：沿波纹坡道的振荡本底流产生内部潮汐

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摘要

The process of internal wave generation by the interaction of an oscillatory background flow (U-0 cos (omega(0)t), V-0 sin (omega(0)t), W-0 sin (omega(0)t)) over a uniform slope is investigated. The stratification is assumed to be uniform and the fluid of infinite depth. Analytical solutions are obtained which give the energy flux in the radiating internal wave field. Since waves are generated not only at the fundamental frequency omega(0), but also at all the harmonic frequencies less than the buoyancy frequency, the energy flux for both low and high frequency waves is considered. The acoustic limit approximation (the limiting case in which the tidal excursion, U-0/omega(0), is much less than the scale of the topography) gives a reasonable approximation to the energy flux.
机译：通过振荡背景流（U-0 cos（omega（0）t），V-0 sin（omega（0）t），W-0 sin（omega（0）t） ）在均匀的坡度上进行了研究。假定分层是均匀的并且流体的深度是无限的。得到解析解，该解析解给出了辐射内部波场中的能量通量。由于不仅在基波频率ω（0）处产生波，而且在所有小于浮力频率的谐波频率处产生波，因此考虑了低频波和高频波的能量通量。声学极限近似值（潮汐偏移U-0 / omega（0）远小于地形图的极限情况）对能量通量给出了合理的近似值。

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