流体动力学

The law of the influence of contractive angle of taper nozzles and curvature radius of convergence nozzles' convergent section on jet structure parameters is revealed, and it can provide a basis for optimization selection and design about laser cutting nozzles.

揭示锥型喷嘴收缩段收缩角、收敛型喷嘴收敛段抛物线曲率半径对射流的流场结构参数的影响规律，为激光切割喷嘴的优化选择和设计提供有效依据。标签激光技术激光切割会聚型喷嘴流场结构流体动力学 laser technigue laser cutting assemble nozzle jet structure hydrokinetics

In the presence of magnetic field and Fe3+ with high concentrations, Magnetohydrodynamics effect was caused in the stripping voltemmetry. More metal ions were deposited on the electrode surface, and then the stripping peak current of metal and the sensitivity of the detection were obviously increased.

在金属的溶出伏安法测定中，磁场和高浓度的Fe3+的共同作用产生的磁流体动力学效应使得更多的金属离子沉积在电极表面，使金属的溶出峰电流明显提高，极大地提高了测量的灵敏度。

At last, we are concerned with the global existence and asymptotic behavior of smooth solution to the initial boundary value problem for the bipolar hydrodynamic model with the Neumann and Dirichlet boundary condition in the one-dimensional case, respectively. The difficulties from the coupled action between electrons and holes are carefully dealt with.

另外，本文也深入研究一维空间双极半导体流体动力学模型初边值问题光滑解的整体存在性及其衰减性，分别讨论了两类在实际应用中重要的边值条件，克服了由于电子和空穴之间的耦合作用所带来的困难。

And,by using such model,it will be easier and simpler forone to study the dispersal process.

该模型着重考虑气液两相的混合，虽然没有上述流体动力学模型细致和精确，但具有简便和计算量小等优点。

On the other hand, the magnetohydrodynamics is always the focus in electrochemistry.

另外，电化学中的磁流体动力学效应也一直是人们所关注的焦点。

It is governed by the equation of continuity and momentum for the liquid in cylindrical coordinates with axial symmetry, the isentropic equation of state for water.

曲面头部的水弹高速冲击刚性表面的流体动力学问题，可以归结为无粘性、可压缩的不定常流动问题，受轴向对称园柱座标的连续和动量方程、水的等熵状态方程支配。

The projectiles are stabilized using a hydrodynamic cavity, generated by the flat point of the projectile.

这种炮弹是利用流体动力学稳定腔，由弹丸小点生成。

Objective To study the application of computational fluid dynamics in designing of artificial heart.

目的 探讨计算流体动力学方法在人工心脏设计中的应用。

This area of study is called Computational Fluid Dynamics or CFD .

这方面的研究是所谓的计算流体动力学或计算流体力学。

A visualization algorithm of fluid dynamics simulation on the GPU is presented in this paper.

提出了一种基于GPU的流体动力学可视化方法。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎