【摘要】：入水問(wèn)題涉及到軍事、航空等領(lǐng)域,如子彈入水、船舶砰擊等,具有很強(qiáng)的應(yīng)用背景。物體入水的過(guò)程涉及到固、液、氣三相流動(dòng)和相互作用,并伴隨水花飛濺、空泡形成等復(fù)雜的物理現(xiàn)象。該文基于緊致插值CIP(constrained interpolation profile)數(shù)學(xué)模型,分步求解Navier-Stokes(N-S)方程,并通過(guò)多相流理論描述固-液-氣之間的相互作用,采用Volume of Fluid(VOF)類(lèi)型的高精度緊致tangent of hyperbola for interface capturing(THINC)方法重構(gòu)自由面。模擬了剛性圓柱和方柱的入水過(guò)程,結(jié)果與實(shí)驗(yàn)數(shù)據(jù)吻合較好。
[Abstract]:Water entry involves military, aviation and other fields, such as bullets in water, ship slamming and so on, which has a strong application background. The process of entering water involves solid, liquid and gas three-phase flow and interaction, accompanied by water splash, cavitation and other complex physical phenomena. Based on the compact interpolated CIP (constrained interpolation profile) mathematical model, the Navier-Stokes (N-S) equation is solved step by step, and the solid-liquid-gas interaction is described by multiphase flow theory. The high precision compact tangent of hyperbola for interface capturing (THINC) method of Volume of Fluid (VOF) type is used to reconstruct the free surface. The water entry process of rigid cylinder and square column is simulated, and the results are in good agreement with the experimental data.
【作者單位】： 浙江大學(xué)海洋學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51479175,51679212) 浙江省杰出青年科學(xué)基金項(xiàng)目(LR16E090002)~~
【分類(lèi)號(hào)】：O35

【相似文獻(xiàn)】

相關(guān)期刊論文 前1條

1 湯寒松,張德良,李椿萱;對(duì)流方程保單調(diào)CIP格式[J];水動(dòng)力學(xué)研究與進(jìn)展(A輯);1997年02期

，

本文編號(hào)：2395655