The numerical schemes of dns are based on finite difference methods dns的数值方法基于有限差分法。
As a kind of numerical simulation method, modelling is associated with numerical scheme intimately, neither to be overseen 作为一种湍流模拟方法,模型与差分格式密不可分,二者不可偏废其一。
The adaptive finite element method is a numerical scheme which can automatically adjust algorithms to improve the solving procedure 为边坡渐进累积破坏分析打下基础。其次,将自适应方法引入流形元中。
Through derivation the present thesis proves numerical value flux conserva tion of sub-domains interface boundary can make parallel numerical schemes conservative 通过推导证明了只有使内边界数值通量守恒才能使并行后的总体数值格式是守恒的。
Chapter 5 and chapter 6 deal with the physical and mathematical model for the proposed heat exchanger . numerical schemes are discussed in detail 第五、六章对六边形准逆流换热器中对流、导热甚至传质相互耦合的传热过程建立了相应的数学物理模型及数值格式。
The simulation of the 1-d transient coupled heat and moisture transfer is further improved, in the aspects of modeling, boundary conditions assuming and numerical schemes utilizing 在模型建构、边界条件、数值方法等方面进一步完善了多层多孔结构内一维瞬态热湿耦合模拟研究。
The proposed global stiffness matrix assembly approach and the technique of melt front advancement may provide valuable reference information for the general finite-element numerical scheme with variable calculation domain 提出的总体刚度阵合成方法与熔体前沿推进技术的结合可为一般的具有可变计算区域的有限元数值计算提供参考。
To purse a high performance of an algorithm, we propose a new numerical scheme, called the characteristics-mixed finite element method, for approximating the solution to a convection-dominated diffusion equations of parabolic type 为克服传统格式的上述缺陷,我们提出了求解对流占优问题的一种新型数值方法-特征混合有限元方法。
We get the perturbed system equivalent to the pseudo-symplectic numerical scheme by use of backward error analysis, and prove that this perturbed system is hamiltonian when truncating with less order than pseudo-symplectic order 利用向后误差分析的方法,得出拟辛数值方法所对应的扰动系统,证明了此扰动系统在小于拟辛阶的截断时,是一hamilton系统。
The paper describes how the system works in solving the given problem by splitting the solving domain into sub-domain, switching numerical scheme timely and deciding when to appropriately interact the ghost cell values at run time (3)系统概要设计和详细设计。在目标系统的概要设计阶段,确定系统中的agent类型,分析这些agents相互之间的交互关系,得到整个目标系统的框架结构。