本文選題：質(zhì)量源 + 內(nèi)孤立波��； 參考：《海洋與湖沼》2016年06期

【摘要】：為研究?jī)?nèi)孤立波質(zhì)量源數(shù)值造波方法,本文采用兩個(gè)點(diǎn)源形式的質(zhì)量源,分別放置于兩層流體的上下層中作為內(nèi)孤立波激發(fā)源。推導(dǎo)源項(xiàng)表達(dá)式,從不可壓縮流體的Navier-Stokes方程出發(fā),結(jié)合內(nèi)孤立波Kd V、e Kd V理論,基于商業(yè)軟件FLUENT發(fā)展了一種內(nèi)孤立波質(zhì)量源數(shù)值造波方法。通過數(shù)值模擬,分析了質(zhì)量源造波過程中內(nèi)孤立波的生成過程,并將數(shù)值模擬結(jié)果同理論及實(shí)驗(yàn)作對(duì)比。結(jié)果表明:基于此方法生成的內(nèi)孤立波波形、波高及波致水平速度與理論及實(shí)驗(yàn)吻合度較好,該方法是可行的,并且耗時(shí)短、效率高。
[Abstract]:In order to study the numerical wave generation method of internal solitary wave mass sources, two mass sources in the form of point sources are used as excitation sources of internal solitary waves in the upper and lower layers of two layers of fluid respectively. Based on the Navier-Stokes equation of incompressible fluid and the theory of internal solitary wave, a numerical method of internal solitary wave mass source is developed based on commercial software FLUENT. Through numerical simulation, the generation process of internal solitary waves in the process of mass source wave-making is analyzed, and the numerical simulation results are compared with the theoretical and experimental results. The results show that the wave height and wave induced horizontal velocity generated by this method are in good agreement with the theoretical and experimental results. The method is feasible, time-consuming and efficient.
【作者單位】： 中國(guó)海洋大學(xué)工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目;51279187號(hào) 山東省科技重大專項(xiàng)項(xiàng)目;2015ZDZX04003號(hào)
【分類號(hào)】：P731.24

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