- 更多网络例句与第三类边界条件相关的网络例句 [注：此内容来源于网络，仅供参考]
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Convective-type boundary conditions at interface of vessel walls are used in simulating convective heat transfer in blood vessels.
在血管壁施加第三类边界条件是计算血液与组织间对流换热的一种近似计算方法。
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Because the coupling condition of NNGFM arises from the net current continuity imposed at the volume element interfaces, the relatively complex conversion formulation for partial current continuity condition of NGFM is unnecessary when applying G. E. T., and computation time is saved. The coefficient matrix of the coupled equations is tridiagonal, so it can be solved by forward elimination and backward substitution method.
NNGFM的基准校验及在大庆200MW核供热堆(NHR-200)上的应用表明，NNGFM计算精度和速度与第三类边界条件格林函数节块法NGFM〓相当，在相同精度下速度比CITATION能快1000倍；NNGFM给出的本征值、功率分布较NNGFM误差能减少一半以上，为更精确计算工作期、卡棒当量提供了条件。
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Studied present measuring methods" advantages and disadvantages, and presented the necessity and importance of researching propellant transient heat transfer.2.according to 130 and aeronautic 90 rocket projectiles" structure, analysed and acquired physical and mathematical models for propellant transient heat transfer, also designed propellant temperature field simulation units for test.3.acquired discrete transient heat balance equation and temperature calculation program, and gave contrasting curves between experimental temperature values and program calculating temperature values as well as maximum errors and average square root errors between them.4.by programs based on the first class boundary condition, worked out temperature distribution in propellant temperature field simulation units at different time, analysed temperature field distribution law and main elements affecting heat transfer, acquired propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.5.established transient heat transfer mathematical model and temperature calculation program for the third class boundary condition, drew contrasting curves between temperature experimental values and calculation values and gave maximum errors and average square root errors between them, got temperature distribution in the simulation unit at different time and main elements affecting heat conduction, figured out propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.
分析了现有测试方法的优缺点，提出了研究推进剂瞬态导热的必要性和重要性。 2。根据130和航90两种火箭弹的结构，分析得到了推进剂传热的物理模型和数学模型，设计了推进剂温度场模拟实验装置。 3。得到了离散形式的瞬态热平衡方程和温度场计算程序，给出了实验温度与程序计算温度值的对比曲线及其最大偏差与均方差。 4。利用程序求出了第一类边界条件下、不同时刻推进剂温度场模拟装置中的温度分布，分析了温度场的分布规律和影响传热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处的温度时间曲线并给出了两者之间的最大偏差与均方差。 5。建立了第三类边界条件下的瞬态导热数学模型和温度计算程序，求出了温度实测值与计算值的对比曲线并给出了两者之间的最大偏差与均方差，得到了不同时刻温度场模拟装置的温度分布与影响导热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处温度及两者之间的最大偏差与均方差，讨论并确定了能代表130和航90推进剂温度的特征点的位置。
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The conclusion shows that gas diffesion model under the third kind boundny conditionincludes the m0del under the first Kind boundary condition;mass transfer Biot criterion can repressent the featoreof gas diffesion field of coal particles.Moreover,the measurement method of gas diffu...
结论表明，第三类边界条件下的瓦斯扩散模型包含以往研究的第一类边界条件下的扩散模型，传质毕欧准数能表征煤粒瓦斯扩散场的特点；介绍了测试煤粒瓦斯扩散系数和表面传质系数的方法，给出了测试实例。
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When the formulas of the tetrahedral element are developed, triangular coordinates is used to develop the boundary integral part of outer boundary element.
其中针对四面体单元的第二、第三类边界条件采用面积坐标积分变换法详细推导了边界积分项的计算过程。
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Both the BIE and transmission condition are transformed into the third boundary condition.
在分析过程中，将传输条件和BIE统一成第三类边界条件形式。
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In the second chapter the theory of weighted residual technique is illustrated and the boundary integral function of the potential problem is deduced by it. Method of obtaining Greens function fundamental solution is presented. It also illustrates how to deal with inhomogeneous regions and the third boundary condition. At last the numerical solution of boundary integral function is presented.
第二章首先说明了加权余量法的原理，并由此推出了势问题的边界元积分方程，还介绍了无限域中格林函数的基本解的求法，以及多介质域和第三类边界条件的处理方法，最后说明了边界积分方程的数值解法。
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The IBC and the bound ar y integral equation are transformed into the third boundary condition, then the functional of the boundary value problem is obtained.
将 IBC和腔体口面边界积分方程分别转化为第三类边界条件形式，从而导出边值问题的相应泛函。
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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。
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The two-dimensional transient finite element analysis and thermal responsecalculation were carried out for prestressed concrete box girder with irregular crosssection. Various boundary conditions were discussed in detail.
在有限单元分析中，首次推导出混合边界单元的计算公式，从而将第二类边界条件和第三类边界条件统一起来，以第三类边界条件的形式施加到单元边界上。
- 更多网络解释与第三类边界条件相关的网络解释 [注：此内容来源于网络，仅供参考]
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boundary condition of second type：第二类边界条件
boundary condition of prescribed head 给定水头的边界条件 | boundary condition of second type 第二类边界条件 | boundary condition of third type 第三类边界条件
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third boundary condition：第三类边界条件
thin walled structures 薄壁结构 | third boundary condition 第三类边界条件 | third cosmic velocity 第三宇宙速度
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boundary condition of third type：第三类边界条件
boundary condition of second type 第二类边界条件 | boundary condition of third type 第三类边界条件 | boundary element method 边界单元法