查询词典 boundary condition

A coupled-unstable-equation-system of the heat, moisture and air transfer of the third boundary condition in the building walls with one dimension were developed, and software was developed using numerical simulation.

为了研究建筑墙体的热质耦合传递规律，该文考虑了太阳辐射的影响，建立了在第三类边界条件下建筑墙体非稳态热、湿及空气渗透耦合传递的物理及数学模型，开发了相应的数值模拟计算软件。

The two-dimensional melting process of ice ball filled with aluminum foam was numerically simulated at the third boundary condition, from which the authors could get the temperature field and phase change interface positions changed with time, and compared it with pure ice.

数值模拟了以铝为骨架、冰为填充相的单个冰球的二维融化过程，得到了在第三类边界条件下蓄冰球融化过程的温度场和相界面移动规律，并与只填充纯冰的蓄冰球传热过程进行比较，同时分析了泡沫铝的孔隙率对融化时间的影响。

A brief visual analytical form of temperature distribution on a finite double material irradiated by a continuous wave laser is presented under the third boundary condition in one dimensional heat conduction.

在一维热传导问题的第三类边界条件下，给出激光辐照有限厚双层材料Zn InP温度分布的一种直观简洁的解析形式。

Effective heat capacity method was used to simulate heat transfer of freezing phase change growth in the metallic foams at the third boundary condition. The average temperature distributions vs. time in the metallic foams were obtained. The results showed effects of different porosity and thermal conductivity on the temperature distributions.

采用显热容法模拟了第三类边界条件下泡沫金属中水的冻结相变传热过程，得到了泡沫金属中骨架和流体的温度分布及其平均温度的变化，分析了不同骨架导热系数及不同孔隙率对介质温度分布的影响。

A theoretical model was set up through introduction of moving heat source principle and a closed form analytical solution was obtained using Green's function under the third boundary condition.

在极端环境条件下，当温度低于低熔点金属的熔点时，低熔点金属或者合金可能发生凝固，这种情况不但使强化换热效果减弱，甚至可能恶化整个散热系统。

Beginning with FEM solution for transient heat conduction, turning to the theory of solar radiation and some heat engineering manuals, utilizing the commercial FEM software ANSYS, the variation regulars to time of temperature field in the standard cross-sections of the composite beam and tower columns of Harbin Sifangtai Bridge have been clarified under the third boundary condition.

本文从非稳态温度场的有限元解法入手，利用太阳辐射的相关理论和国内外热工工程手册上的数据，按第三类边界条件给四方台大桥叠合梁和主塔的一个标准截面施加边界温度荷载，采用ANSYS 软件求出了标准截面温度场随时间变化的规律。

Under the helix boundary condition, the Helmhotz matrix has Toeplitz structure with positive definite property.

在螺旋边界条件下，该矩阵H具有Toeplitz结构的正定厄密矩阵，其快速求逆可由谱法LU分解或直解法快速实现。

Based on the abnormal limited boundary condition in the swim-out torpedo tube, simulation was conducted to calculate the resistances of pressure difference and the flow losses according to different movement phases of torpedo in the constant section tube.

根据自航管内非常局限性边界条件，结合鱼雷在管内各阶段的运动状态，实时计算了补水压差阻力和其他流体阻力，并进行了计算机仿真。

In addition, the thesis is meaningful in many aspects, such as: how to create grids in complex model, how to simplify the boundary condition, and how to transfer transience to steadiness.

另外，本文在复杂模型的网格生成，边界条件的简化，瞬态过程的简化等方面作了一些有益的探索，希望可以对相似类型的数值模拟问题提供借鉴。

The introduced boundary condition at the transom stern and corresponding numerical treatment are simple and effective.

所引入的方尾边界条件及相应数值处理简单而有效。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。