convergence acceleration meaning in English
加速收敛
Examples
- A convergence acceleration technique , boundary element method ( bem ) , spectrum of two - dimension solutions ( s2ds ) method are used separately in solving dyadic green function of the three domain . next , waveguide narrow - wall slots array ' s is introduced in this paper
对外部空间，与缝隙腔体区域一样认为场量与z无关，对所有场量做z方向的fourier变换，得到谱域上的一系列去耦合的二维方程。 - 4 . a 2 - d and 3 - d euler equations and n - s equations are solved using the cell - centered finite volume method and four - step runge - kutta scheme on the cartesian grids with standard convergence acceleration techniques such as local time stepping , enthalpy and implicit residual smoothing
使用jameson中心有限体积法和runge - kutta时间推进方法，求解了关于二维、三维复杂流场的euler 、 navier - stokes方程，采用了当地时间步长、隐式残值光顺等多种加速收敛方法。 - The viscid flux is discretized by second - order central difference scheme . baldwin - lomax turbulence model is implemented in navier - stokes flow solver . for steady - state calculations , a four - stage runge - kutta scheme with convergence acceleration techniques such as local - time stepping and implicit residual smoothing is used
其中，定常计算中的时间推进采用四步runge ? kutta方法，并应用了当地时间步长、隐式残值光顺等加速收敛措施；非定常计算中的时间推进采用jameson的隐式双时间方法。 - Compared with octree data structure , the omni - tree data structure could reduce the meshes " total numbers and get better mesh quality . this paper uses cell - centered finite volume spatial discretization and four - stage runge - kutta time - stepping scheme with some convergence acceleration techniques such as local time stepping and enthalpy damping
在流场计算中，本文采用格心格式的有限体积法用二阶中心差分对欧拉方程作空间离散，用四步龙格库塔方法作显式时间推进。 - Through ( multi - level ) bordered block partition of the power system topology matrix , a bbdf coefficient matrix which is suitable for above decomposition is formed . when the equation is solved with parallel iterative method , convergence acceleration is achieved through damping newton method
通过采用(多重)对角加边的方法进行电力网络拓扑分割,以形成适合以上分解法求解的对角加边形式的系数矩阵,并行求解后并对迭代过程进行阻尼牛顿法修正,以达到加速收敛的作用。