查询词典 continuum

During the calculation the results got by quintic spline kernel was the best so it was chosen as the proper kernel for the SPH simulation. By comparison of the simulation results got by SPH and finite volume method, it was proved that the buffer cells method proposed in the SPH simulation to implement the Dirichlet boundary conditions was accurate, and this is of great importance for the simulation of flows pass a pipe. At last, the SPH method was improved to simulate the liquid-solid two phase flows and the results show that this method was appropriate for the simulation of flows containing viscous fluid and macroscopic solid components. Now the two methods are both able to predict the continuum flows and rarefied flows severally, but the hybrid program still has some aspects to be improved.

首先用标准算例验证了SPH方法的理论模型和计算程序的准确性；通过比较确定选用五次样条核作为计算低雷诺数下的粘性连续流动时的核函数；采用SPH方法和有限体积法分别对同一管道流动进行了对比计算，证明了本文提出的边界缓冲区方法在实现SPH方法中的流体边界条件时的有效性，解决了SPH方法模拟管道流动时的一个关键问题；巧妙地使用SPH方法对化工分离流动中常见的固液两相流及固液耦合作用进行了模拟尝试，获得了较好的结果；在跨尺度计算方面，目前两个子程序已经能够分别模拟连续的和稀薄的二维管流问题，二者的耦合计算程序还处于调试和优化阶段，各个参数对于计算精度和计算速度的影响规律仍在探索中。

In cases where an equivalent continuum cannot be defined, discontinuum network simulation is a viable alternative. Howerer, these models are very demanding in terms of computer resources, which restraints their application to engineering practice.

首先，提出了一种基于混合边界元—管流的改进的三维离散裂隙网络模型，并研究了提高模型计算能力的方法，使其可以具有更好的工程应用性。

Material damage ; damage zone ; continuum damage mechanics; crack tip ; Dugdale model ; metal sheet

材料损伤；损伤区；损伤力学；裂纹尖端； Dugdale模型；金属板材

Dynamic characteristic topology optimization for continuum structures with random parameters is investigated in this paper.

研究了具有随机参数的连续体结构在频率概率约束下的动力特性拓扑优化问题。

Since we get continuous rather than discrete allowed values for E0, the positive-energy eigenfunctions are called continuum eigenfunction

由于对E≥0得到连续的而非分立的允许值，正能量的本征函数叫做连续谱本征函数。

Recent observations on the dynamics of crack and fault rupture are described, together with related theory and simulations in the framework of continuum elastodynamics.

阐述裂纹和断层动力学方面的最新观察，以及在连续介质弹性动力学框架下的相关理论和模拟。

It combines state-of-the-art visualization capabilities with powerful modeling functionality including implementations of force field methods and continuum electrostatics models.

它结合了经典的可视化能力和强力的建模功能，包括力场方法和连续光谱静电建模的实现。

Based on a nonclassical theory of plasticity and the continuum damage mechanics,a damage constitutive equation is obtained for the ferrite phase with the damage evolution law for mixed hardening materials from an ellipsoidal void model under particular coordinates,where the void shape variation is considered.

基于非经典塑性理论和连续介质损伤力学，利用在一个特殊坐标系下基于椭球形孔洞模型得到的可考虑孔洞形状变化混合强化材料的损伤演化率得到了铁素体相的损伤本构方程，通过混合物理论利用铁素体和渗碳体相各自本构关系并考虑其几何特征得到了珠光体团的损伤本构模型。

For Ar clusters higher the background pressure is, stronger is soft x ray line emission and more intense is the continuum soft x ray emission.

并发现：团簇产生的超热电子呈现近似均匀的空间分布特性；在增加背压时，氩团簇产生的软X光的连续谱增强且谱线更为丰富。

The flexible body concept is introduced to constitute the virtual prototyping continuum model of the longitudinal vibration and the transverse vibration of the belt conveyor in the thesis, and the two virtual prototyping models are analyzed in an emulation mode.

本文将柔性体概念引入带式输送机纵向振动连续模型虚拟样机和带式输送机横向振动虚拟样机的建立中，并对这两种虚拟样机进行了振动仿真分析。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。