基于CIP方法的入水过程模拟
发布时间：2018-12-30 13:41
【摘要】：入水问题涉及到军事、航空等领域,如子弹入水、船舶砰击等,具有很强的应用背景。物体入水的过程涉及到固、液、气三相流动和相互作用,并伴随水花飞溅、空泡形成等复杂的物理现象。该文基于紧致插值CIP(constrained interpolation profile)数学模型,分步求解Navier-Stokes(N-S)方程,并通过多相流理论描述固-液-气之间的相互作用,采用Volume of Fluid(VOF)类型的高精度紧致tangent of hyperbola for interface capturing(THINC)方法重构自由面。模拟了刚性圆柱和方柱的入水过程,结果与实验数据吻合较好。
[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.
【作者单位】： 浙江大学海洋学院;
【基金】：国家自然科学基金项目(51479175,51679212) 浙江省杰出青年科学基金项目(LR16E090002)~~
【分类号】：O35
本文编号：2395655
[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.
【作者单位】： 浙江大学海洋学院;
【基金】：国家自然科学基金项目(51479175,51679212) 浙江省杰出青年科学基金项目(LR16E090002)~~
【分类号】：O35
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1 汤寒松,张德良,李椿萱;对流方程保单调CIP格式[J];水动力学研究与进展(A辑);1997年02期
，本文编号：2395655
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