查询词典 instantaneous angular velocity

On the basic of predecesser s study,the authors expound the reationship among depression cone radius and piezometric propagationg velocity are caculated in a electrical water source head.

在前人研究的基础上，作者详尽地推导了上部入渗补给为常量情况下的降落漏斗半径和水压力传递速度与时间的关系式，并对某电厂水源地进行了计算。

VOF method was used to track the shape and location of free face, and PISO method was used to couple the velocity field and pressure field.

为了验证数值模拟的准确性，对二维、三维数值模拟结果与试验结果及理论分析结果进行了比较。

Combined with blast furnace gas pipeline network practice operation situation, the article establishes gas flow characteristics analysis model and double precision simple algorithm PISO model to solve gas pressure and velocity distribution in pipeline.

文章结合某高炉煤气管网的实际运行情况，建立气体流动特性分析模型，并通过双精度SIMPLE算法的PISO模型来求解管道内煤气的压力和流速分布。

The optimized QUICK scheme (Hayaes, 1992) is used to calculate the variables on the cell faces. The multi-step full-implicit time marching PISO algorithm is adopted to deal with the coupling of velocity and pressure.

空间界面插值采用Hayasa的优化QUICK格式，每一时层的速度场与压力场采用多步PISO算法耦合，从而保证了较高的时间、空间精度。

The non-structure grid is used for complex irregular boundary processing. An efficient algorithm PISO is used for the model and it can correct the bias of the mesh, so it can reduce iterative times. The flow pattern, energy dissipation ratio and velocity field are obtained.

根据不同的运行工况，利用计算流体力学软件FLUENT对无压隧洞洞内消能工的水流流态进行了二维简化数学模型的数值模拟，在求解过程中采用混合结构网格来处理复杂的边界形状；采用了效率较高PISO算法进行计算，在计算过程中进行了相邻校正和偏斜校正，减少了达到收敛所需的迭代次数。

VOF method was used to track the shape and location of free face, and PISO method was used to couple the velocity field and pressure field. By the 2-D and 3-D numerical simulations of the flow in sprinkler component under different states, the preliminary flow law of the sprinkler was revealed for the first time.

6采用三维非定常N-S方程作为控制方程，利用标准κ-ε紊流模型封闭雷诺时均方程，并利用VOF方法求解追踪自由表面的形状和位置，采用PISO算法耦合速度压力场，首次对喷头射流元件内部流动的不同运行状态进行了二维、三维数值模拟，初步揭示了内部流动的一般规律。

Key words: ecological restoration; acoustic Doppler velocimeter; Pistia stratiotes; hydrodynamic behavior; planting mode; velocity distribution

关键 词：生态修复；超声波多普勒测速仪；大吀；水流特性；种植方式；流速分布

In this paper ,move ment pri nci ple of rocket i n direction pi pe was got by dy— namic si mulation ,and effect characteristic consideri ng contact stiffness ,detent force and nozzle thrust misalignment a— bout pitchi ng angle velocity was analysis .All the study set foundationfor further study of high—lowpressure launch sys— te m.

通 过发射仿真分析，获得了火箭弹在高低压发射系统中的内弹道变化规律，分析了火箭弹与定向器的接触刚度、耳轴扭转刚度、尾喷管推力偏心等因素对俯仰角速度的影响特性，所得结论为火箭武器高低压发射系统的进一步相关研究奠定了基础。

Dynamic si mulation ; contact stiffness ; si mulation scri pt ; pitchi ng angle velocity

动力学仿真；接触刚度；仿真剧本；俯仰角速度

In order to analyze the influence of fins,a low-order panel method based on velocity potential was used to predict the steady hydrodynamic performance of a podded propeller with fins.

为了分析鳍对吊舱推进器水动力性能的影响，用基于速度势的低阶面元法预报附鳍吊舱推进器的定常水动力性能。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"