發(fā)布時(shí)間：2018-05-24 07:26

  本文選題：ROMS + 海山　； 參考：《水動(dòng)力學(xué)研究與進(jìn)展(A輯)》2017年03期

【摘要】：該文采用regional ocean modeling system(ROMS)海洋模式,對(duì)理想channel中的海山模型,研究均勻分層流作用下,不同的伯格數(shù)和來(lái)流條件對(duì)海山誘導(dǎo)的尾跡渦及垂向流動(dòng)的影響。結(jié)果表明,伯格數(shù)越大,越有利于海山后尾跡渦的產(chǎn)生,渦的強(qiáng)度不斷增大,且渦脫落頻率加快;隨流速的增加,海山后尾跡渦的強(qiáng)度增大,渦脫落頻率加快,且海山周?chē)拇瓜蛄鲃?dòng)增強(qiáng);當(dāng)來(lái)流速度較低(0.05 m/s)及較高(0.8 m/s)時(shí),均不利于在海山后形成穩(wěn)定的垂向流動(dòng)。
[Abstract]:In this paper, regional ocean modeling system roms ocean model is used to study the effects of different Berg numbers and flow conditions on the wake vortex and vertical flow induced by seamounts under the action of homogeneous stratified currents for the seamount model in ideal channel. The results show that the larger the Berg number is, the more favorable it is to the formation of wake vortex behind seamounts, the intensity of vortex increases and the frequency of vortex shedding increases, and with the increase of velocity, the intensity of wake vortex increases and the frequency of vortex shedding increases. The vertical flow around seamounts is enhanced, and the vertical flow is not conducive to the formation of stable vertical flow behind seamounts when the velocity of inflow is lower than 0.05 m / s) and the velocity is higher than 0.8 m / s.
【作者單位】： 清華大學(xué)深圳研究生院海洋學(xué)部;
【基金】：國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973項(xiàng)目,2014CB745002)~~
【分類(lèi)號(hào)】：P731.2
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本文編號(hào)：1928208