结合单步出流实验的数值反演方法在确定土壤水力性质时会遇到解的非唯一性问题。
The non-uniqueness problem is always encountered when numerical inverse method coupling with one step outflow experiments is employed to determine the soil hydraulic properties.
应用升力面理论涡格法和面元法，建立了拖式吊舱推进器非定常水动力性能的数值计算方法。
Based on potential flow theory, a numerical method is proposed for predicting the steady and unsteady hydrodynamic performances of puller type podded propulsors.
将并行计算方法应用于含运动边界流场的数值模拟，采用弹簧方法生成非结构运动网格。
The parallel computation method was used for numerical simulation of flow field with moving boundary, and unstructured moving grids were generated by spring analogy method.
本文从非接触电能传输系统的高阶数学模型出发，描述了频率分叉现象，并且用数值方法界定了分叉区域。
This paper on the basis of high order mathematic model, described the frequency bifurcation phenomenon, and used numerical method to bound the bifurcate region of parameter.
给出了非平稳过程线性组合的首次超越动力可靠度的一个有效数值计算方法。
An efficient numerical method is proposed for calculation of the first crossing reliability of non stationary process linear combination.
采用有限元数值计算方法，研究冷喷涂材料改性过程中铜粒子与铜基体非垂直碰撞的变形行为。
Based on developed numerical simulation method, the impacting behavior of copper particle colliding copper substrate in process of transforming material property is investigated.
以柱形颗粒的衍射理论为基础，提出了适用于非球形颗粒衍射模型的数值计算方法。
Based on the theory of cylindrical particle diffraction, a numerical calculation method that can be used to measure non spherical particles is presented.
对火箭发动机(包含发射药)的非稳态温度场进行数值模拟是确定火箭发射药实时温度的一种有效方法。
Simulating the temperature field of a rocket motor (including propellant) by numerical method is an effective way to get real-time temperatures of the rocket propellant.
本文建立了扰动速度势面元法预报螺旋桨表面非定常压力分布的理论和数值方法。
This paper sets the theoretical and numerical method predicting the unsteady pressure distribution on the propeller blade surface by using perturbation potential based on surface panel method.
本文给出了一维复杂非均匀分布参数系统的数值传递函数方法。
A numerical distributed Transfer Function Method (DTFM) is developed for analysis of complex one dimensional non uniform distributed parameter systems.
用有限元法对非均匀介质的涡流检测信号进行了数值模拟，并针对检测信号采用逼近的方法预测了表面硬化层深度。
The numerical simulation on the eddy signals was introduced by approaching method based on Finite Elements theory to predict the hardened depth.
基于附着流状态下的旋翼非定常翼型气动模型，给出了计算该状态下的翼型非定常升力、阻力和俯仰力矩的数值计算方法。
A numerical method is given to calculate the unsteady lift, pitching moment and drag acting on an airfoil of rotors under attached-flow conditions in a compressible flow.
对非轴对称环形腔作了数值计算以说明方法的应用。
Numerical calculations were performed foran axis-asymmetric ring resonator to illustrate the application of the method.
用数值方法模拟了竖直通道宽度对气泡在液体中的非定常运动、变形以及传热特性的影响。
The motions, deformation and heat transfer characteristic of a rising gas bubble through the liquid in a vertical channel are numerically predicted in this paper.
首先介绍了无规取向轴对称非球形粒子光散射的T矩阵数值方法。
A numerical method for the t matrix approach of light scattering by randomly oriented and axially symmetric nonspherical particles performed in PC machine is presented first.
在解决岩土工程非连续变形问题的数值方法中，非连续变形分析方法(DDA)无疑是一种高效、精确的算法。
Among all the numerical analysis methods, the Discontinuous Deformation analysis (DDA) method is an efficient method with high accuracy.
计算结果表明，数值模拟方法能够合理地描述非水相流体的运移过程和污染特征。土体渗透性和污染物残余饱和度是其重要影响因素。
Numerical results show that the contamination characteristics of NAPLs can be reasonably described, which is significantly affected by intrinsic permeability of soils and residual saturation of NAPLs.
给出一种新的非单调信赖域方法，证明了算法的全局收敛性和超线性收敛性，最后给出了数值结果。
A new nonmonotonic trust region method is given in this paper. And its global convergence and superlinear convergence are proved. Numerical results are given.
“双网格”方法和相应的算法为非均匀边界条件控制下河道演变的数值模拟提供了保证。
The dual grid method can provide a useful tool for numerically simulating the fluvial processes with non-uniform boundary conditions.
运用这种方法对单层介质和二层介质的临界问题以及单层介质非临界问题进行了求解，而且得到了较满意的数值解。
For monolayer and two-layer spherical critical problem and for monolayer noncritical problem, the application by this approach gives the corresponding solutions and satisfactory numerical results.
根据惠更斯波传播原理，构建了一种在通用CFD软件的非结构网格系统上直接计算燃面推进的数值方法。
Based on Huygens principle of wave propagation, a numerical simulation method on CFD software unstructured mesh was founded so as to calculate burning surface regression directly.
介绍了用格子玻尔兹曼方法模拟非均匀介质中的电场响应的数值模拟方法。
A numerical method for simulating electric field response in the inhomogeneous medium is introduced using lattice Boltzmann method.
本文对拱坝坝肩的稳定的数值分析方法做了综述，总的来说数值分析方法分为确定性方法和非确定性方法。
It is summarized and dissertated in this article about the numerical method analysis, which is divided into deterministic analysis and nondeterministic analysis.
基于数值模拟方法，研究了逆流矢量喷管非定常内流性能。
Internal performance of unsteady flow of counterflow thrust vectoring nozzle has researched base on numerical simulation.
首次用数值解方法研究了考虑毛管数效应、非达西效应及其耦合作用高速流动效应下凝析油气混合物渗流规律。
This paper studies the two-phase flowing characteristics in gas condensate reservoir considering the capillary number effect and non-Darcy effect based on numerical solution method firstly.
该方法不仅可用于一般的数值问题求解，而且在处理复杂的非数值问题时与传统方法相比要简单得多。
This method can not only apply to numerical problems but also apply to complicated non numerical problems, and appears much simpler compared with the traditional programming method.
冲击式水轮机水斗内非定常自由水膜的流动非常复杂，至今还没有足够精确的数值方法来模拟这种流动。
The unsteady free water sheet flow in the rotating bucket of a Pelton turbine is a very complex flow that cannot be accurately simulated for lack of a numerical method.
对溢洪道下游破碎基岩为主的非沙质河流冲刷进行了平面二维数值模拟计算方法的探讨。
In this paper, the plane two-dimension numerical simulation is used to study the scour in a river whose bed is mostly cracked bedrock at the lower reaches of a spillway.
对溢洪道下游破碎基岩为主的非沙质河流冲刷进行了平面二维数值模拟计算方法的探讨。
In this paper, the plane two-dimension numerical simulation is used to study the scour in a river whose bed is mostly cracked bedrock at the lower reaches of a spillway.
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