Incompressible Navier-StokesIn this work, we present a nonlinear variational multiscale finite element method for solving both stationary and transient incompressible Navier-Stokes equations. The method is founded on a two-level decomposition of the approximation space, where a nonlinear artificial ...
incompressible Navier-Stokes equation [计]不可压缩纳维尔-斯多克斯方程 incompressible 英 [ˌɪnkəm'presəbl] 美 [ˌɪnkəm'presəbəl]adj.不能压缩的 派生词：incompressibility equation 英 [ɪˈkweɪʒn] 美 [&#...
The aim of this paper is to justify the rigorous derivation of the incompressible Navier–Stokes equations from the nonlinear Vlasov–Fokker–Planck (VFP) equation with a constant temperature. Under the incompressible Navier–Stokes scaling, we first establish the global existence of regular solutions ...
不可压 avier Stokes 方程基于误差估算的 网格自适应解法 周春华 ( 南京航空航天大学空气动力学系 南京 210016) 摘要 : 首先导出了广义方程 P -G 有限元数值解的当地事后误差估算公式 ; 以非连续二阶鼓 包 (b ) 函数空间为速度 ~ 压强误差的近似空间 该估算基于求解当地单元上的广义问题...
不可压 avier Stokes 方程基于误差估算的 网格自适应解法 周春华 ( 南京航空航天大学空气动力学系 南京 210016) 摘要 : 首先导出了广义方程 P -G 有限元数值解的当地事后误差估算公式 ; 以非连续二阶鼓 包 (b ) 函数空间为速度 ~ 压强误差的近似空间 该估算基于求解当地单元上的广义问题...
Backward NavierStokes equationStochastic representationGlobal existenceLarge deviationBy reversing the time variable we derive a stochastic representation for backward incompressible Navier-Stokes equations in terms of stochastic Lagrangian paths, which is similar to Constantin and Iyer's forward formulations in...
wheredenotes the-dimensional Euclidean space. The velocity of the fluidand the pressureforsatisfy the incompressible Navier–Stokes equations: (1.1) Here,denotes the boundary of,is the unit outward normal at a pointgiven by (1.2) is the stress tensor defined by, whereIis theidentity matrix,,deno...
给出了求解不可压缩Navier-Stokes方程的GLS平面八节点单元的“单元长度”的定义和相应的逆估计常数,由此可计算出该单元的GLS稳定因子。给出的“单元长度”只依赖单元形状且易于计算;各种形状的直边四边形单元的逆估计常数的最大值由遗传算法得出。对Reynolds数为20,000的方腔上盖板流的数值模拟表明,本文所提出的单元...
In summary, the contributions of this paper are firstly, the introduction of two reduced stress–velocity least-squares formulations for the incompressible Navier–Stokes equations, which are based on the well-known SVP formulation. Secondly, a low- and a high-order discretization of the solution ...
二维Navier-Stokes方程组 1. The feed jet flow field in a gas centrifuge was numerically simulated by solving the 2D Navier-Stokes equations using the finite volume method with a second order implicit upwind scheme. 为研究气体离心机供料射流的流动状况,采用数值求解二维Navier-Stokes方程组的方法对其进行...