本文選題：楔形體 + 波浪��； 參考：《海洋工程》2017年05期

【摘要】：物體入水時(shí)波浪的影響不可忽略,基于流體力學(xué)模型采用VOF法,并利用自定義函數(shù),模擬了楔形體的自由入水過(guò)程;同時(shí)結(jié)合推波板原理及海綿層消波理論實(shí)現(xiàn)了數(shù)值水槽的造消波,完成了波浪中楔形體自由入水的模擬,計(jì)算了楔形體入水時(shí)所受的水作用力、自由液面變化及物面壓強(qiáng)分布等,研究了不同波高、周期以及在波浪不同位置入水時(shí)對(duì)楔形體的影響。結(jié)果表明:本文建立的數(shù)值模型可很好地模擬楔形體入水造成的射流及空泡的形成發(fā)展過(guò)程,波浪對(duì)楔形體入水的影響主要由波浪內(nèi)部流場(chǎng)變化及表面波形決定,在波浪不同位置處入水對(duì)楔形體受力及入水形態(tài)均有較大影響。
[Abstract]:The effect of the wave is not negligible when the object enters the water. Based on the fluid mechanics model, the VOF method is used and the custom function is used to simulate the free water entry process of the wedge. At the same time, the wave forming of the numerical sink is realized by the principle of the wave plate and the theory of the sponge layer wave elimination. The simulation of the free water entry of the wedge in the wave is completed and the wedge shape is calculated. The water force, the free surface change and the pressure distribution of the surface, the influence of the wave height, the cycle and the water entering the water on the wedge is studied. The results show that the numerical model established in this paper can well simulate the formation and development of the ejection and cavitation caused by the wedge entering water, and the wave to the wedge shape. The effect of water entry is mainly determined by the change of the internal flow field and the surface wave form. The water entry in different positions of the waves has a great influence on the force and the form of the water entering the wedge.
【作者單位】： 國(guó)家海洋環(huán)境監(jiān)測(cè)中心;大連理工大學(xué)海岸及近海工程實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(51709054) 海洋公益性行業(yè)科研專項(xiàng)資助項(xiàng)目(201405025;201505019)
【分類號(hào)】：O353.2

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本文編號(hào)：2052817