free surface

The machining results show that accuracy requirements of optic free surface can be fulfilled.

加工结果表明,该方法可以满足光学自由曲面的加工精度要求.

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In this paper, using the PLK method and reductive perturbation method, we obtained the second approximation to cnoidal waves at the free surface and interface for the two-fluid system considered in [ 1].

本文考虑[1]中所建立的模式，采用约化摄动法及PLK方法，求得了自由面及界面上的二阶椭圆余弦波。

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The free surface flow of a solitary wave overtopping an erect breakwater was simulated using turbulent model and the VOF method.

应用湍流数学模型和流体体积法模拟孤立波翻越防波堤的流动和自由表面变化。

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The electric field which is produced by free surface charge on the interface lies in both ends of the interface and is added to original electric field in opposite direction, which results in normal component discontinuation of dielectric displacement vector.

界面上的自由面电荷所产生的电场，在界面两侧，以相反的方向叠加在原电场上，导致了电位移矢量的法向分量的不连续；

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This thesis presents a raised panel method based on NURBS ( Non-Uniform Rational B-Splines) for predicting the wave pattern and wave resistance of a ship, with forward speed, piercing the free surface of an ideal fluid.

本学位论文以基于非均匀有理B样条（Non-Uniform Rational B-Splines，NURBS）的面元法计算排水型船舶的兴波波形及波形阻力。

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Numerical study of the three-dimensional free surface in cylindrical tank

贮腔类三维自由液面动力学问题数值研究

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When the top surface of the melt is free surface, two roll cells with opposite direction are observed in the melt driven by both the surface tension gradient on the two free surfaces.

当熔体顶部为自由表面时，由于上下自由表面张力的作用，在熔体内部会形成两个流动方向相反的流胞。

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The main objective of the present work is to study the effect of free surface heat transfer on the thermocapillary flow of high Prandtl number fluids.

本文利用数值方法探讨往复振荡圆柱对渠道内加热块之暂态流场结构及热传特性的影响。

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According to the unsteady flow of the metal, the VOF method which is widely used in the Computational Fluid Dynamics is induced into the catch of the metal free surface. The flowing trend of the metal free surface is simulated factually and good surface finish is obtained.

针对材料的非稳态流动，将计算流体领域广泛应用的VOF方法引入铝型材挤压过程中的金属流动前沿的动态捕捉中来，真实地模拟了金属前沿流动趋势，得到了良好的表面质量。

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Research on free surface is mature in Computer Aided Geometric Design ( CAGD ).

计算机辅助几何设计 ( CAGD ) 中对自由曲面的研究已较为成熟.

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This paper expounds the specification of free surface and introduces a new method of machining of free surface-circular contour forming.

提出了一种新的曲面加工方法&圆环包络成型法。

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When the top surface of the melt is solid wall, a toroidal roll is caused in the melt by the surface tension gradient on the free surface.

当熔体顶部为固壁时，在狭缝处自由表面张力的作用下，会在熔体底部形成一个流胞。

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Application of free surface reconstruction based on catia

基于CATIA的自由曲面重构以及应用

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Both problems of the free surface flows: bursting dam and bore, are simulated by using the SPH method via the boundary force.

利用SPH方法及边界力方法对水坝坍塌和涌波进入静止水塘这两个自由表面流动问题作了数值模拟。

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ALE finite element method for free surface Navier-Stokes flow using fractional step methods

带自由液面Navier-Stokes流动问题的ALE分步有限元方法

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The MHD effect on liquid metal free surface jet flows under magnetic field has been investigated.

分析了磁流体力学效应对液态金属自由表面射流稳定性的影响.

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Because there is no GRIP function which can scan along the special curve, so the method of suturing the free surface with the bounded-plane is applied to solve this kind of sweep problem.

因没有沿空间曲线扫描的GRIP函数可供使用，故采用缝合自由曲面与有界平面的方法来解决这个问题。举例介绍了算法的实现。

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Using the LGG experimental device obtained the free surface velocity-time curve and the spall strength under high strain rates.

利用极高应变率下的LGG实验装置，获得了材料的自由面速度时程曲线以及层裂强度。

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Study on Mathematic Methods for the Free Surface Problem and the Patch Test Function

自由表面问题和分片检验函数的数学方法研究

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Second Order Free Surface Tracking Algorithm in VOF Method and Its Application

二阶精度的VOF自由面追踪方法及其应用

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The experimental results proved that ( 1) there is an additional cyclic strain hardening effect caused by non-proportional loading, and ( 2) the relative orientation between maximum shear plane and free surface plays significant role on fatigue life.

非比例加载引起的附加循环硬化；（2）最大剪切平面与自由表面相对取向对疲劳寿命的影响；

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It is demonstrated that MLPG is a useful tool for study of seepage with free surface.

这表明,对于渗流自由面问题,无网格方法是行之有效的计算方法.

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Reconstruction of the free surface from the VOF function is by Yongs' nine-point method.

用流体体积函数来追踪自由表面的时空变化，并采用Yongs提出的九点法来实现自由表面的瞬时重构。

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Subsequently the free surface is divided by FEM ( Finite Element Method) and a linear set of equations is developed based on Bernoulli equation.

并采用有限元剖分自由表面动边界，应用伽僚金加权余量法，建立自由表面Bernoulli方程的有限元线性方程组。

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The algorithm is applied to calculate the free surface contours of metal in a laboratory scale crucible furnace and the results showing excellent agreement with the measured value are presented.

运用这一算法进行了实例计算，计算结果与模拟实验所测量的结果十分吻合。

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Free surface tropical Pacific ocean GCM with high resolution developed at the Institute of Atmospheric Physics is used to simulate the La Nina event, one of the important phase try the EI Nino/ Southern Oscillation ( ENSO) cycle.

用中国科学院大气物理研究所高分辨率、自由表面热带海洋环流模式对厄尼诺／南方涛动（El／Southern Oscillation）循环中另一重要位相La事件进行了数值模拟研究。

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The flow surface elevation is obtained from iteration calculation of free surface equation and the flow depth is calculated from equation of continuity.

通过迭代法求解自由水面方程并计算出自由水面高程，由连续性方程求出水流深度。

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Bound and free surface waves in a large wind-wave tank.

在大风波槽中的边界和自由表面波.

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The magnetic field which is produced by free surface current on the interface is added to original magnetic field in opposite direction, which causes tangential component discontinuation of magnetic field strength.

界面上的自由面电流所产生的磁场，以相反的方向叠加在原磁场之上，导致了磁场强度的切向分量不连续。

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Basic Methods, Revisions and Applications of Identifying Seepage Free Surface

渗流自由面求解的基本方法、修正及应用

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