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该文采用regional ocean modeling system(ROMS)海洋模式,对理想channel中的海山模型,研究均匀分层流作用下,不同的伯格数和来流条件对海山诱导的尾迹涡及垂向流动的影响。结果表明,伯格数越大,越有利于海山后尾迹涡的产生,涡的强度不断增大,且涡脱落频率加快;随流速的增加,海山后尾迹涡的强度增大,涡脱落频率加快,且海山周围的垂向流动增强;当来流速度较低(0.05 m/s)及较高(0.8 m/s)时,均不利于在海山后形成稳定的垂向流动。
In this paper, oceanic model of regional ocean modeling system (ROMS) is used to study the effect of seamounts and vertical flow induced by sea seamounts under different stratified flow and different Burg number and incoming flow conditions on seamounts model in ideal channel . The results show that the greater the Berger number is, the more favorable the wake vortex is. The vortex intensity increases and the frequency of vortex shedding accelerates. With the increase of flow velocity, the strength of the wake vortex increases and the frequency of vortex shedding accelerates , And the vertical flow around the seamount is enhanced. When the flow velocity is low (0.05 m / s) and higher (0.8 m / s), it is not conducive to the formation of a stable vertical flow after the seamount.