数值计算

The propagation of radar waves in a magnetized collisional plasma slab is studied numerically.

使用平板几何对雷达工作频段的电磁波在磁化碰撞等离子体中的传播作了数值计算。

In this paper, two kinds of uniflow hydrocyclone's spin movement are caused by bar vertex ban inlet setting. Its performance prediction is based on CFD analysis and a mass of test. By FLUENT application and selecting the RSM model, CFD analysis is performed on 66mm returned flow hydrocyclone and 70mm uniflow hydrocyclone (cone-shaped, columniform), pressure field and velocity field and inner flow field are gained, this approves the results of CFD analysis accord with experimental results. Based on the results of CFD analysis, the schemes of optimum structure may be raised.

设计的两种直流式水力旋流器内的自旋运动是由新型涡流板入口结构引起的，它的性能预测是基于数值计算和大量的实验，通过利用Fluent流体动力学软件，针对旋流器实验样机的主体结构形式，基于RSM模型对内部流场的压力分布、速度分布和流体流动情况，对66mm返流式水力旋流器和70mm直流式水力旋流器进行了模拟分析，为水力旋流器的结构优化设计提供了借鉴。

In this paper,by numerical calculation, the effect of gas saturation on dispersion of model waves,excited spectrum of compressional wave and shear wave and full wave of acoustic logs in cased boreholl are discussed.

通过数值计算讨论了气体饱和度对声测井曲线的模式波的频散特性、纵波和横波的激发特性、全波波形的影响。

The real-world joints in the aircraft structure usually consist of multi-row fasteners. This thesis builds the 3D FE contact analysis model of a typical aircraft joint with three-row countersunk screws, and studies pin-load distribution and stress characteristics under constant and varied cross-section thicknesses as well as with and without pre-tighten screw conditions for the joint. Many applied pin-load numerical distribution laws for different conditions in the joint are recognized.

本文对典型的多排沉头螺钉接头建立了三维有限元接触分析模型，对螺钉的钉载分布在截面等厚度和变厚度、无预紧力和加预紧力多种情况下进行了数值计算分析，给出了诸多实用化钉载分布规律。

Based on coupled nonlinear Schr?dingar equation, the numerical solutions of pulse propagation in fibers were obtained with Split-step Fourier Method.

本文以耦合非线性薛定谔方程为理论模型，采用分步傅立叶方法进行数值计算，仿真研究了满足特定要求的多程放大系统前端脉冲经光纤传输后引起失真的原因。

Radiation spectrums of relativistic charged particles in a dipolar magnetic field were studied numerically in detail by using the current density of moving charged particles in this paper.

从运动的荷电粒子产生的流密度出发，研究了在地球偶极磁场中运动的相对论性荷电粒子的辐射能量谱，并对其进行数值计算。

Numerical value show: circular-ring energy dissipater can control seismic response and uplift.

数值计算表明：圆环耗能器能够有效的控制地震响应及提离。

A nonlinear mathematical model is built for the attracting process of an electropneumatic valve of the low-thrust LRE with high-pressure chamber. When the input parameters are changed, the response characteristics of the valve during the attracting process is analyzed in detail.

对小推力高室压液体火箭发动机用的电动气阀的吸动过程建立了非线性数学模型并进行了响应特性的数值计算，详细分析了改变输入参数时电动气阀在吸动过程中所表现出的响应特性。

Based on the stability theory of dynamical system, numerical computation of bifurcation diagram and the largest Lyapunov exponent of the linearized systems, the synchronization dynamics of coupled fast spike neurons with excitory chemical synapse was studied.

基于动力系统的稳定性理论、数值计算分岔图和线性化系统的最大Lyapunov指数，研究了经兴奋性化学耦合的快峰神经元的同步动力学。

The typical FAE model is shown and its simplified conditions in the numerical simulation are provided in the paper.

给出了典型的FAE模型及在数值计算时必要的简化条件。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。