Linear theory of the propagation of internal wave beams in an arbitrarily stratified liquid
Linear theory of the propagation of internal wave beams in an arbitrarily stratified liquid
复制标题
任意分层液体中内波束传播的线性理论
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
Y. Chashechkin
中科院分区：
文献类型：
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作者：
Yu. V. Kistovich;Y. Chashechkin
在Boussinesq近似下，考虑到扩散和粘性的影响，计算了具有平滑变化分层的液体中的谐波内波束。本文构造了一个将任意光滑分层介质中的光束局部简化为指数分层液体的方法。计算了临界能级上光束反射时的能量损失系数。内边界流的参数与分裂尺度的速度和密度，形成由一个波束上的浮力频率及其高阶导数的不连续性。
Beams of harmonic internal waves in a liquid with smoothly changing stratification are calculated in the Boussinesq approximation taking into account the effects of diffusion and viscosity. A procedure of local reduction of the beam in a medium with an arbitrary smooth stratification to the case of an exponentially stratified liquid is constructed. The coefficient of energy losses in the case of beam reflection on the critical level is calculated. Parameters of internal boundary flows with split scales of velocity and density that are formed by a wave beam on discontinuities of the buoyancy frequency and its higher derivatives are determined.