三阶精度的英文

• third-order accuracy

• 三:    three
• 阶:    steps; stairs
• 精度:    precision; accuracy; degree ...
• 二阶精度:    second-order accuracy
• 高阶精度:    higher order accuracy

例句与用法

1. The theoretical analysis and the simulation of the chain structure model indicate that the fluctuations of mass leaving enthalpy close in on that of distributed parameter model with two - order , two - order , and three order precision at the disturbances of heat flow rate , mass entering flow rate , and mass entering enthalpy
   理论分析及仿真结果表明，该模型在热流量、入口流量和入口焓的扰动条件下，出口焓的变化分别以二阶、二阶、三阶精度逼近分布参数模型。
2. In this paper , we analyzed and discussed the basic principle of the recently developed high order accuracy finite difference schemes ? eno schemes and weno schemes . based on 2nd order nnd schemes , we introduced a 3rd order wnnd scheme with jiang and shu ' s " weighted " idea and a tvd runge - kutta time discretization method
   对于新近发展起来的eno格式和weno格式，本文分析并讨论了其基本构造原理，并且在二阶nnd格式的基础上，利用jiang和shu的加权思想和具有tvd性质的runge - kutta时间离散方法，建立了时、空三阶精度的wnnd格式。
3. A semi - discrete form of our scheme is also presented . this new reconstruction is a third order accuracy in smooth regions and non - oscillations at cell interfaces . our scheme enjoys the main advantage of the central schemes - simplicity , namely it does not employ riemann solvers and hence the intricate and time - consuming characteristic decomposition are avoided
   本文针对一维双曲型守恒律的初值问题，研究了二阶和三阶中心差分格式，提出了一种改进的三阶中心差分格式及其半离散形式，主要是引入了一种新的重构，并证明了这种重构在光滑区域具有三阶精度且在网格边界无振荡，所提的格式保持了中心差分格式简单的优点，不需要求解黎曼问题，避免了复杂且耗时的特征分解过程。
4. This thesis presents the high resolution numerical simulation methods for multi - fluid dynamics . the main contents include three parts : the first is a set of interface capturing equations deduced to describe the interface evolution , which is suitable for constructing two - order enhanced un - split finite volume scheme and three - order parabolic - piecewise - method ( ppm ) scheme in euler coordinate ; the second is the capabilities of level - set method for tracking multi - fluid interfaces are unproved ; the third is that the computational resolutions are much more advanced by improving adaptive mesh refinement ( amr ) technique
   主要研究目的是获得多介质流体流动的高精度数值模拟方法，主要内容包括界面捕捉方程的推导，适用于euler坐标系的增强型二阶精度非维数分裂有限体积计算格式和三阶精度ppm格式构造，以及发展改进levelset方法提高捕捉流体界面的能力，发展改进网格自适应技术提高各类方程解的计算精度。
5. Uniformly high - order accurate eno ( essentially non - oscillatory ) schemes succeed in computing highly accurate numerical solutions to hyperbolic systems of conservation laws , typically second or three order in smooth regions , while maintaining sharp , oscillation free , numerical profiles at discontinuities , but usually their computational cost is quite large
   而一致高阶基本无振荡格式可以成功计算出双曲型守恒律的高精度数值解，在保持其间断处陡峭、无振荡的数值轮廓的同时，并在光滑区域通常达到二阶或三阶精度，但其计算量却相当的大。