问题简化及网格划分在数值模拟中合理的简化物理模型既能反应问题物理本质又能使模拟得以顺利实现。
Simplify the problem and divide the mesh In numerical simulation, proper simplification of the physical problem can make the simulation simple.
另一方面，如果可能，一个物理模型以符合产品要求的方式，并且按初始比例简化，以便使任何人都能在设计和造型上做出正确的评价。
On the other hand, if possible, a physical model to meet the product requirements, and according to the initial ratio of simplified, so that anyone can design and modeling of the correct evaluation.
利用光干涉的简化模型讨论了动态光散射中光子相关谱测量系统的空间相干性要求的物理本质。
Using a simplified model of light interference, we discussed the physical essence of the spatial coherence demand on a photon correlation spectrum measurement system in dynamic light scattering.
根据简化的推进系统物理模型，建立了贮箱、管路、自锁阀与过滤器，以及推力器的仿真数学模型。
The simulation models of tank, pipe, self-locking valve and filter, and thruster were established according to the simplified physic model of the propulsion system.
文中提出了“等效环”的概念，把旋转对称面上不等元分布共形阵等效为等元分布的情形，简化了共形阵的物理模型。
The concept "equivalent ring" simplifies the array model in the method of equating arrays with unequal elements to arrays with the same elements in each ring.
该模型通过物理网格节点的联合，来消除管理上的冗余，简化网格系统结构。
The model can reduce redundant managements and simplify structure of grid system through uniting physical grid nodes.
当地下条件较好时，人工挖孔桩通过合理的简化，可将其嵌岩灌注桩物理模型简化为端承桩，暂不考虑上部桩周土摩阻力。
If the geology condition is better, the physical model of man_dug pile can be regarded as end_bearing pile by reasonable simplification without considering the friction resistance of the soil.
而且提出了一个简化模型用于理解透射抑制现象的物理机制。
A simplified model is proposed to comprehend the underlying physics of this special phenomenon.
本文在实验模型的基础上，经简化建立了有三个污染源的置换通风三维稳定传热、流动的物理模型和数学模型。
Based on experimental models, the paper sets up three-dimensional steady heat transfer and flow physical model and mathematical model on a three polluting heat sources after simplification.
基于简化的晶粒形状，建立了模拟晶粒生长形貌的二维数学物理模型。
On the basis of the simplified grain shape, the physical model and mathematical model for the simplified dendrite shape were established.
在此基础上，建立了能反映整个激光加工过程的主要物理特征的热弹性应力、热弹塑性应力以及残余应力的简化模型。
All these lead to the model of the thermal elastic stress, thermal elastoplastic stress and residual stress based on some simplications.
但是，发表的文章中多侧重于理论分析和实际应用两个方面，而很少讨论它的建模问题，特别是物理模型和简化的电路仿真模型以及这两种模型间的联系。
There are many papers discussing it, but they pay much attention to the theory analysis and practical application, few to its model, especially the Physics model and the circuit simulation model.
系列简化和假设导致实际物理系统和数学模型之间的差异，主要包括有系统参数变动，未建模动态特性，未建模时滞等等。
The difference between the physical system and the mathematical model arises from many sources, including parameter changes, un-modeled time-delays, and so on.
本文首先对散热器工作的物理机制进行详细分析分别对自然对流换热情况和强制对流换热情况建立了简化的二维数值计算模型。
At first, the physical mechanism was studied then the 2d compact numerical simulation model for natural convection and forced convection heat transfer analysis was built respectively.
对高光本色油漆的膜层结构提出简化假定，通过物理、光学分析，导出其双向光谱反射率函数，得到了一种新的光照模型；
Based on simplified assumptions on solid paints film structure, a new bidirectional reflectivity function is obtained through physics and optical analysis;
用这方法简化难题，天文物理学家就能够建立吸积盘的理论模型，以便与实际圆盘的观测比较。
By cutting the Gordian knot in this way, astrophysicists have been able to build theoretical models of accretion disks to compare with observations of actual disks.
用这方法简化难题，天文物理学家就能够建立吸积盘的理论模型，以便与实际圆盘的观测比较。
By cutting the Gordian knot in this way, astrophysicists have been able to build theoretical models of accretion disks to compare with observations of actual disks.
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