1) vorticity equation
涡量方程
2) vortex-vector potential equation
涡量-向量势方程
3) vortex-stream function equations
涡量-流函数方程
1.
As recirculation zone formed by coastal water flow make pollutants accumulation so as to lead the environment deterioration,a 3-points high order compact(HOC) difference scheme was used in high accuracy numerical computation of the vortex-stream function equations and pollutants convection diffusion equation to study its formation mechanism and law of pollutants accumulation.
为研究回流区污染物堆积的机理及规律,采用高阶三点紧致差分格式对涡量-流函数方程和污染物对流扩散方程进行高精度数值求解,得到了污染物堆积与回流区岸线角度、排放点位置之间的定量关系。
4) Equations of stream and vorticity functions
流函数涡量方程
1.
Based on the paper , the method for solving the unsteady equations of stream and vorticity functions has been used to the case of non equidistance grid analysis.
在文献 [1]的基础上 ,将非定常流函数涡量方程的数值求解方法推广至非等距网格剖分 ,其中流函数一阶导数即速度项采用二阶精度公式 ,包含温度在内的离散方程组采用ADI迭代方法求得定常解 ,以封闭腔内自然对流为例 ,进行了不同瑞利数 (Ra)条件下数值试验 ,对Ra =10 6的计算进行了必要的处理 。
2.
The unsteady equations of stream and vorticity functions were used for numerical simulation on the process of the vortex formation and periodic shedding from an impulsively started circular cylinder.
利用非定常流函数涡量方程数值模拟圆柱突然起动尾流涡旋的形成及周期性脱落过程。
3.
The method for solving the unsteady equations of stream and vorticity functions has been improved.
对非定常流函数涡量方程的数值求解方法进行了改进，其中流函数一阶导数即速度项采用四阶精度的Hermitian公式，对流项由一般二阶精度的中心差分提高到四阶精度离散差分，包含温度方程在内的离散方程组采用ADI迭代方法求得定常解。
5) vorticity-stream function equations
涡量流函数方程
6) whirling formation
涡动方程
1.
This article presents the whirling formation when the PDC bit is at the bottom of the well and the methods to decreasing the PDC whirling was brought forward.
通过对钻头的受力分析,应用等效质量的方法和粒子运动原理,建立了PDC钻头在井底的涡动方程,并提出了减小钻头涡动的方法。
补充资料：涡量
见涡旋。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条