并利用特征线法，得到薄膜厚度的方程。
The equation for thickness of film was obtained by the method of characteristics.
本文对螺旋弹簧质量系统动态响应的特征线法进行了研究。
The characteristics method of the dynamic response of the helical spring mass systems is studied.
该法由两部分组成，跨音速段用级数解，超音速段用特征线法。
The method is composed of two parts, the series expansion method in the transonic region and the characteristics method in the supersonic region.
本文利用特征线法直接求解该辨识问题，得到了该问题的显式解。
In this paper, the characteristic method is used directly to solve this problem of identifiability, and the obvious solution to this problem is obtained.
主要介绍了特征线法在溪洛渡泄洪洞挑流鼻坎设计中的应用情况。
Application and research of method of characteristics in design of flip bucket for spillway tunnel at Xiluodu Hydropower Project is mainly presented.
本文应用特征线法给出一维爆震波在爆震管内的传播过程的解析解。
The paper used the characteristics line method to calculate the one-dimensional detonation wave propagation process inside a detonation tube.
用特征线法分析了刚性块轴向撞击弹塑性直杆时应力波传播的过程。
The traveling process of elastic-plastic waves under impact action was analyzed by characteristics method.
对脉冲爆震发动机的热力循环过程应用特征线法作了一维流场的数值模拟。
Numerical simulation in one-dimensional unsteady flow of thermal dynamic cycle process in PDE is presented by the characteristic method.
在水电站机组丢弃负荷情况下，利用特征线法计算管道内的水击荷载时间历程。
The time history of water hammer in pipeline in the condition of unit emergency load dump is calculated by characteristic line method.
首先，通过特征线法和有限差分法得到了时间离散和空间离散的非线性状态方程。
First, the partial differential equations are transformed into discrete space, discrete time nonlinear difference equations through characteristic method and finite difference approach.
基于特征线法，并考虑变比热的影响，开展了高超声速飞行器用单膨胀斜面喷管设计。
For hypersonic vehicles, the effect of nozzle aerodynamic characteristics on vehicles performance is serious.
本文用特征线法研究了碱水二维渗流的对流模型，给出了碱水浓度非线性波传播公式。
We study the two-dimensional model of alkaline pulses by using the method of characteristics. The formulae of the nonlinear concentration waves are presented.
控制方程是一维非定常气体动力学偏微分方程组，用隐式中心差分结合特征线法解算。
The numerical solution of the governing equations, pertaining to one-dimensional unsteady gas dynamics, utilizes an implicit finite-difference scheme combined with the method of characteristics.
该模型由一传热子模型和一流动子模型耦合组成，分别用有限差分法和特征线法求解。
The solution of the heat transfer submodel is worked out by the finite differential method; while the solution of the flow submodel is worked out by the characteristic method.
文中证明，特征线法的应力关系式与本文的屈服条件、屈服函数的极值条件是相同的。
When the material does not display a yield point, a quantity known as the proof stress is used when making design calculations.
分别运用特征线法和有限差分法求解，得到了含水饱和度分布和活动边界的变化规律。
Characteristic solution and finite difference solution to the model are derived respectively and water saturation distribution curves are presented.
将泵系统出口段作为一种特殊水力元件，应用特征线法计算泵系统自由出流下的水力过渡过程。
Taking the outlet section as a special hydraulic element, the hydraulic transient process under the free outflow mode of pump system is calculated herein with the method of characteristics.
根据矿井排水系统一般可以简化为串联复杂管路系统的特点，采用特征线法模拟其断电停泵的瞬变过程。
Since a mine pumping system can generally be simplified into a complicated pipe-line system in series, the transient process is simulated by a method of characteristic line.
提出了一个简化特征分析的方法，这种方法将成为应用特征线法求解各类各向异性应力波问题的一个突破口。
Then, a approximate method for characteristic analysis is presented, which will pave the way for solving the stress wave propagation problems in anisotropic solid.
液体在长输管道内不稳定流动问题可以采用各种数直解法并借助计算机来进行处理，如特征线法、隐式差分法等。
Numerical method for computer solution are used for fluid flow in long distance pipeline, such as characteristics method, implicit difference method and so on.
本文还采用非恒定计算的特征线法，对该水电站引水系统模型非恒定流进行了计算，其计算结果与模型试验结果吻合。
This paper also calculates the unsteady flow of the hydropower station's model by using of the characteristics method, the calculated result is extremely close to the experimental result.
为了给我国的高速铁路设计提供理论依据，采用特征线法对高速列车进入隧道引起的一维非定常流动进行了数值研究。
One dimensional unsteady flow induced by a high speed train entering a tunnel was numerically studied using the method of characteristics.
这种模型属于具有活动边界的非线性问题，分别用特征线法和有限差分法求解，得到了含水饱和度分布和活动边界的变化规律。
Characteristic solution and finite difference solution are derived respectively and water saturation distribution curves are presented and the law of the moving boundary is found.
运用计算流体动力学(CFD)的动网格技术对管道中的阀门关闭进行了动态模拟，针对同一模型，并与特征线法及试验进行了比较。
By using the dynamic mesh model in CFD software to calculate the pipe valve closing, use the characteristic method and the experiment to compare with the same model.
本文在分析影响水击因素的基础上，建立了水击效应的数学模型，并用特征线法以及ADINA有限元方法对水击数学模型进行了求解。
After analyzing factors impacting the water hammer, the paper set up the water hammer mathematic model, apply character line method and ADINA software to solve model.
应用三特征线法求解气体减压波速，并开发了相应的计算程序，分析了起始压力、起始温度、不同气体介质和管径对气体减压波速的影响。
Gas decompression wave velocity during the pipeline fracture process was solved by the three-characteristic line method, and the corresponding computer program was developed.
本文用混合隐式特征线法求解了井内流道中的瞬态波动压力问题，给出了弹性管和可压缩流体在井内各流道组合的压力波波动方程和定解条件。
By using the combined implicit characteristic line method, the calculation of the transient surge pressure in the flow conduit of a drilling well has been resolved in this paper.
本文应用特征线法为常见的下开式水锤消除器建立了数学模型，并结合工程实饯对水锤消除器的选取进行了寻优计算，取到了较好的消锤效果。
In this paper, the author establishes a water hammer arrester mathematical model, and applies it to engineering. Optimized calculation shows that the prevention method is effective.
理论分析和实验研究表明，使用特征线法计算管道系统时，在大小管连接截面处，应考虑到该处的动量变化，才能准确描述液压管道系统的瞬变过程。
The paper discusses the ultimate loads of foundations calculated with the characteristic line method and the determination of the ultimate bearing capacity of foundations.
通过系统取样的样线法调查整个研究区域环境变量的特征。
Line transects of systematic sampling were used to survey the fundamental characteristics of the environmental variables in the study area.
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