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相变温度场
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  phase change temperature field
     The two-dimensional phase change temperature field of petroleum pipelines in seasonally frozen ground regions under severe climate conditions is studied.
     研究了季节冻土地区集 (输 )油管线基础土体在冬季冻结期间的相变温度场的奇异摄动解法 .
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  “相变温度场”译为未确定词的双语例句
     A Singular Perturbation Method of Phase Change Temperature of Petroleum Pipeline in Seasonally Frozen Ground Regions for Irregular Boundary Configuration
     非规则边界相变温度场奇异摄动解
短句来源
     A Meshless Method for Nonlinear Transient Field with Phase Change
     相变温度场中无网格伽辽金法的应用
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     Considering that the temperature grads that are consisted of temperature differenceconduces the flow and phase change of the moisture, this dissertation gives out the finite element control equation of the moisture transfer in the permafrost subgrade.
     5.根据冻土路基非稳态相变温度场控制方程及水分场迁移控制方程,在考虑第一类边界条件下,对青藏公路K3363+800段冻土路基的温度场、水分场进行了计算,并与实测值进行比较,进一步证明了水热耦合模型的正确性。
短句来源
     unstable phase-change temperature field of soil around pipeline by using the theory of limited difference value.
     本文针对双管流程集油管线的分离式保温形式,建立了计算温度场的数学模型,并采用有限差分数值理论对管线周围土壤的二线非稳态相变温度场进行了计算。
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  相似匹配句对
     suitable phase transition temperature;
     相变温度适中;
短句来源
     Oscillatory Temperature Fields
     振荡的温度
短句来源
     the redistribution of the temperature fields.
     温度的重新分布
短句来源
     Numerical Simulation of 3D-thermal Field with Phase Transformation
     带有相变的三维温度数值模拟
短句来源
     Simulation of temperature field considering phase transformation of high carbon steel wire
     考虑相变过程的高碳钢线材温度计算
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In accordance with the thermal-insulation form of the double-conduit oil-gathering process flow, this article sets up the math model of calculating temperature field and calculates the two-dimensional. unstable phase-change temperature field of soil around pipeline by using the theory of limited difference value.

欲评价埋于季节冻土区保温热管线的热工状况,首要的问题是计算管线周围土壤的非稳态温度场。本文针对双管流程集油管线的分离式保温形式,建立了计算温度场的数学模型,并采用有限差分数值理论对管线周围土壤的二线非稳态相变温度场进行了计算。

In this paper, a mathematical mechanical model and the governing differential equation of the coupled problem of temperature, seepape and stress fields with phase change are first derived from the theory of heat transfer, the theory of seepage and frozen soil mechanics. Then the finite element formulae of this problem are obtained from Galerkin′s method. Finally, an illustrative example of the temperature field and stress field in a cold regions tunnel, considering the seepage and frost heaving force influence,is...

In this paper, a mathematical mechanical model and the governing differential equation of the coupled problem of temperature, seepape and stress fields with phase change are first derived from the theory of heat transfer, the theory of seepage and frozen soil mechanics. Then the finite element formulae of this problem are obtained from Galerkin′s method. Finally, an illustrative example of the temperature field and stress field in a cold regions tunnel, considering the seepage and frost heaving force influence,is provided. The example shows that the influence of frost heaving forces on the stresses of the tunnel lining is very large and, thus, the effect of this factor on the tunnel lining should be taken into account in the engineering design.

首先根据传热学、渗流理论及冻土力学提出了带相变的温度场、渗流场和应力场耦合问题的数学力学模型及其控制方程。然后应用伽辽金法导出了这一问题的有限元计算公式。最后给出了一寒区隧道考虑渗流和冻胀时的温度场和应力场算例。算例表明冻胀力对隧道衬砌应力的影响很大,应充分考虑这一因素的影响。

Basing on injection moulding of a slab plastic part

本文根据注塑平板制件的加工情况,应用有限厚度的相变温度场冷却模型,用改进焓法的一维有限差分程序,完成了平板中心层温度冷却至熔点所需时间的计算。算例表明改进焓法从固液相界面的两侧建立统一的能量方程,成功地处理了潜热,避免了通常差分法计算中容易出现的节点温度波动现象,使节点温度值平滑光顺

 
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