1) operator splitting method
算子分裂法
1.
In order to avoid the difficulties in computation,the operator splitting method is used to deal with the equation,in which the physical process described by N-S equation is decomposed into 2 processes: a diffusion process and a convection process.
为了克服计算上的困难,利用算子分裂法将N-S方程表述的物理过程分解为扩散和对流两个过程。
2) split operat
分裂算子法
3) time operator splitting
时间算子分裂法
1.
Using time operator splitting technique and weighted essentially non-oscillatory(WENO) schemes to simulate detonation with detailed chemical reaction,a time operator splitting technique is employed to decouple hydra-dynamic transport and chemical reaction,and finite volume WENO scheme is constructed for the homogeneous Euler equations with complex equation of state.
用时间算子分裂法来分离普通流体流动和化学反应方程,采用有限体积加权基本无振荡格式构建了带有复杂状态方程的欧拉方程组;提出一种新的熵修正方法EF4,并结合Roe平均格式来解决激波的不稳定问题和间断问题。
2.
Using time operator splitting technique and weighted essentially nonoscillatory(WENO) schemes to simulate detonation with detailed chemical reaction,we obtain its unique and regular detonation wave cellular structure.
用时间算子分裂法来分离普通流体流动和化学反应方程,采用加权基本无振荡格式构建了带有复杂状态方程的欧拉方程组;提出一种新的熵修正方法,并结合Roe平均格式来解决激波的不稳定问题。
4) seed dividing algorithm
种子分裂算法
5) operator-splitting
算子分裂
1.
Operator-splitting algorithm is proposed to solve the pricing model of double-factor convertible bond, and it resolves the problem of calcul.
本文提出了利用算子分裂技术求解双因素可转换债券定价模型的数值方法,有效地解决了因模型固有的复杂性而带来的计算上的困难。
6) operator splitting
算子分裂
1.
An operator splitting method was employed to split the co.
利用算子分裂技术将组份浓度方程分裂为扩散方程和对流方程 ,隐式交替求解对流方程和扩散方程得到组份浓度方程的隐式解。
2.
An operator splitting method was developed to solve the incompressible Navier-Stokes equations defined in a rotating frame of reference.
提出了求解旋转坐标系下的不可压黏性流动问题的θ格式算子分裂算法。
3.
A new type of 9-points finite volume scheme and related operator splitting scheme are proposed.
针对描述美式期权定价的二维问题提出了一类新的有限体积九点格式和相应的算子分裂格式,该格式对对流项占优问题,用迎风技术近似对流项;同时,结合对流的方向近似二阶混合导数。
补充资料:凹算子与凸算子
凹算子与凸算子
concave and convex operators
凹算子与凸算子「阴~皿d阴vex.耳阳.勿韶;.留叮.肠疽“‘.小啊j阅雌口叹甲司 半序空间中的非线性算子,类似于一个实变量的凹函数与凸函数. 一个Banach空间中的在某个锥K上是正的非线性算子A,称为凹的(concave)(更确切地,在K上u。凹的),如果 l)对任何的非零元x任K,下面的不等式成立: a(x)u。(Ax续斑x)u。,这里u。是K的某个固定的非零元,以x)与口(x)是正的纯量函数; 2)对每个使得 at(x)u。续x《月1(x)u。,al,月l>0,成立的x‘K,下面的关系成立二 A(tx))(l+,(x,t))tA(x),0
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参考词条