查询词典 hydrodynamic

Two new models are compared with the simple repulsive force model, and the dominant role of long-range hydrodynamic force and short-range interactions are established in different cases.

通过三种不同碰撞模型的对比，研究了水动力和短程力在粒子浓度不同时的主导作用。

In order to study the numerical method to solve the viscous incompressible flow with free surface, the 3-D mathematical model for steady and unsteady hydrodynamic problem had been established and closed by k-εbuoyant turbulence model. The algebraic coordinate transformation method was used to fit the free surface, the Runge-Kutta method of three step and second precision was devised to simulate the time step. A high precision up-winding compact scheme was studied for the convection term, and the generalized conjugate residual method was set to solve the Poisson equation.

为了研究粘性不可压缩三维问题的数值求解方法，本文从基本的Navier-Stokes方程出发，采用代数拟合方法处理自由表面，用三级二阶Runge-Kutta方法对时间步进过程进行了模拟，并且对对流项的高精度迎风格式进行了研究，给出了求解压力Poisson方程的广义共轭剩余法，从而建立了能够模拟有自由表面的粘性不可压缩问题的定常、非定常三维水动力学模型，并采用k—ε浮湍流模型对其进行封闭。

Structure and work principle of a hydrodynamic retarder are analyzed. A set of electronic control unit is developed aiming at the principle.

分析了液力缓速器的结构和工作原理，针对缓速器的工作原理开发了一套电子控制单元。

This method affords a way to performing the calculation of multi-heat source ring-shaped heat-supply network hydrodynamic condit...

该方法为多热源环状热网的水力工况分析和非对称热网的计算提供了实现的手段。

In fact, M0 accounts for the additional external sources of friction, together with the "hydrodynamic" component of rolling friction, which also has a load dependent part.

实际上，M0代表额外的外部摩擦来源，再加上滚动摩擦中的"流体动力"成份，而这一成份中也有一部分与负荷相关。

In this paper we use the method of the neural network to build the hydrodynamic model of the rotatable propeller according to experimental data. On the basis of it, the maneuverability of the rotatable propeller is studied.

本文根据实验数据，用神经网络辨识方法建立了船后可回转桨的水动力模型，并在此基础上研究了可回转桨的操纵性能。

In order to empolder ocean resources and instruct engineering construction, this thesis synthetically analyzed regional geology, terrain, deposit sediments, hydrology, and sediments of coral reefs, have systemically studied the mechanical characteristics of calcareous sand and coral reef through indoor tests. 1. Many factors including regional engineering geology environment, hydrodynamic environment, terrain, physiognomy have been studied to evaluate their influence to coral reef engineering. It's considered that atoll reefs and table reefs are suitable for engineering construction and the reef flat on atolls is most perfect.

为了开发海洋资源，指导珊瑚礁工程建设，本文综合分析了南沙群岛区域工程地质特征、珊瑚礁地形地貌、海洋水动力环境、沉积物特征等资料，从工程地质角度对珊瑚礁各地貌单元的工程适宜性进行了评价，对礁灰岩和钙质砂进行了室内试验分析，主要研究内容和结论如下： 1、分析了珊瑚礁的区域工程地质环境、海洋水动力条件、地形地貌特征、岩土体条件等因素对岛礁工程建设的影响，对珊瑚礁的礁体类型进行了划分，结论认为可干出的环礁和台礁比较适合各类工程建设，其中环礁的礁坪是理想的工程建设场所。

In the past, cycloidal propellers have not been well applied because their construction costs were higher than that of screw propeller, and the progress of investigation on the hydrodynamic characteristics about cycloidal propeller was slow.

在过去的年代里，由于摆线推进器的造价要比一般螺旋桨高得多，一直没能得到很好的应用，有关摆线推进器水动力性能的研究也一直进展缓慢。

It was found that the Arrhenius type function can well describe the phase separation time/temperature relation,no matter how the viscoelastic and hydrodynamic factors were changed.

发现体系的反应诱导相分离时间/温度关系遵循Arrhenius 方程。

The rheologic and non-Newtonian feature of lubricant that is used for elastic-plastic hydrodynamic lubrication is analyzed, under the condition of high pressure and large shearing strain ratio. The influence factors of oil film thickness and pressure forming during bar drawing are also discussed.

对于有限变形弹塑性有限元中求解非线性方程组的具体方法作了深入的探讨，提出了采用修正牛顿法时可应用过量修正技术加速其收敛效果，为有限变形弹塑性有限元的应用提供了新的计算方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。