流体力学控制方程的数值求解过程中，当网格加密、粘性效应强或来流马赫数低的时候，流场收敛非常缓慢。
When the number of grid is very great or viscous effects dominates or sometimes the speed of flow is low, the rate of convergence slows down dramatically, resulting in inefficient solution technique.
利用流体力学有关原理，导出阿基米德螺线槽流量特性方程，为水力喷砂割缝设备微型流量控制阀的设计、制造、实验、应用提供了初步理论依。
The equation has preliminarily supplied a theoretical foundation for design, manufacture, experiment and application of miniature flow control valve of the water jetting slit-cut equipment.
采用理想磁流体力学方程组(MHD)作为太阳大气动力学过程的控制方程组，定性数值模拟日冕物质抛射(CME)现象。
The ideal Magnetohydrodynamic equations (MHD), the governing equations of the solar atmosphere dynamical process, are taken to numerically simulate Coronal Mass Ejection (CME) phenomena.
本文首先从地球流体力学基本方程出发，通过一些基本假设，推导出海洋内波控制方程。
In the thesis, we firstly derive control equations of oceanic internal wave by basic hypothesis which is based on equation of Geophysical Fluid Mechanics.
该流动受一非线性纳维·斯托克斯方程控制，因此要获得该流动的精确解是一个十分困难的流体力学问题。
The flow is governed by Navier-Stokes equations. Therefore it is extremely difficult to obtain an accurate solution.
该流动受一非线性纳维·斯托克斯方程控制，因此要获得该流动的精确解是一个十分困难的流体力学问题。
The flow is governed by Navier-Stokes equations. Therefore it is extremely difficult to obtain an accurate solution.
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