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等温壁面
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  “等温壁面”译为未确定词的双语例句
     It is found that the temperature and concentration of the falling liquid film at small convective heat transfer coefficient are close to that of the adiabatic boundary condition, on the contrary, the one at larger convective heat transfer coefficient is similar with constant temperature boundary condition. This proves that the numerical method is correct.
     与文献中的绝热和等温壁面条件的结果相比较,可以发现当冷却流体的对流换热系数越大,其除湿液膜内的温度和浓度分布与壁面边界条件为等温壁面情形的温度和浓度分布越接近,而当冷却流体的对流换热系数越小,其液膜内的温度和浓度分布就越接近于绝热壁面的情况,验证了数值计算结果的正确合理性;
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     Numerical model and computational methods for free falling wavy films have been determined. By using the measured film thickness varying with time, Navier-Stokes and continuity equations are solved with the finite difference scheme under the conditions of Re=880 and constant wall temperature in moving coordinate system.
     要对垂直自由降膜表面波建立了数学模型及计算方法,在雷诺数Re为880、等温壁面条件下,根据实验测定的薄膜厚度随时间变化的规律,经坐标转换,在运动坐标系下,采用有限差分法求解动量方程和连续性方程,得到了定常温度下层流降膜内的速度分布和压力分布;
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  相似匹配句对
     Design of Controlling System of Wall-climbing Robot
     机器人控制系统设计
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     Speed-adjusting System of the Wall Measuring Robot
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     A CRUSTAL MAGNETIZATION MODEL AND CURIE ISOTHEM
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短句来源
     Laminar heat transfer of gas in extremely narrow parallel plates with one wall temperature constant and the other adiabatic
     气流在单等温平行平板微槽道内完全发展层流换热
短句来源
     SOME PROBLEMS ABOUT INTERPRETATION OF LITHOSPHERIC CURIE ISOTHERMAL SURFACE
     岩石圈居里等温解释的若干问题
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  isothermal wall
Heat transfer on a plate in a turbulent flow with constant surface heat flux and an isothermal wall
      
The problem of heat exchange between a two‐phase laminar flow in a round‐cylinder tube and the isothermal wall of the tube is studied.
      
For adiabatic wall, transition would take place more rearward than those for isothermal wall.
      
The influences of compressibility are then explored by means of varying the Mach and Prandtl numbers in the cases of heating/cooling the wall as well as the isothermal wall.
      
Finally, the numerical method has been applied to the reflection of a non-linear expansion wave and to a shock wave from an isothermal wall, thereby illustrating the effect of the boundary layer on the external flow field.
      
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Numerical model and computational methods for free falling wavy films have been determined. By using the measured film thickness varying with time, Navier-Stokes and continuity equations are solved with the finite difference scheme under the conditions of Re=880 and constant wall temperature in moving coordinate system. The velocity and pressure distribution have been computed, and the relationship between heat transfer coefficient and interfacial waves obtained and analyzed, with the aid of energy equation...

Numerical model and computational methods for free falling wavy films have been determined. By using the measured film thickness varying with time, Navier-Stokes and continuity equations are solved with the finite difference scheme under the conditions of Re=880 and constant wall temperature in moving coordinate system. The velocity and pressure distribution have been computed, and the relationship between heat transfer coefficient and interfacial waves obtained and analyzed, with the aid of energy equation under the condition of constant wall flux density.

要对垂直自由降膜表面波建立了数学模型及计算方法,在雷诺数Re为880、等温壁面条件下,根据实验测定的薄膜厚度随时间变化的规律,经坐标转换,在运动坐标系下,采用有限差分法求解动量方程和连续性方程,得到了定常温度下层流降膜内的速度分布和压力分布;并在恒壁面热流密度条件下,结合能量方程,求得并分析了换热系数和表面波之间的关系。

>=The wrapped-type condenser of a refrigerator can be considered as a typical vertical plate with discrete heat sources and uneven temperature distribution when the pipe temperatures are known. Most of calculations for the heat transfer are under the constant temperature or heat flux conditions, and the Nusselt number correlations come mostly from these two conditions. It may produce larger error that the calculation method of heat transfer of natural convection from vertical plate with even temperature is used...

>=The wrapped-type condenser of a refrigerator can be considered as a typical vertical plate with discrete heat sources and uneven temperature distribution when the pipe temperatures are known. Most of calculations for the heat transfer are under the constant temperature or heat flux conditions, and the Nusselt number correlations come mostly from these two conditions. It may produce larger error that the calculation method of heat transfer of natural convection from vertical plate with even temperature is used in the wrapped-type heat exchanger. In order to solve the problem, an experimental set-up is established to investigate the heat transfer coefficient of natural convection from vertical plate with uneven temperature distribution. And a mathematical model was developed to calculate the heat transfer. Experiments for the heat transfer of a wrapped-type condenser were done under 8 different heating cases, in order to investigate the heat transfer capacity of the condenser and temperature distributions on the condenser. Compared with the experimental data, the calculation results show that the deviation is less than 9.19% and the standard error is 5.68W. By comparing with the calculation results obtained in the case that the temperature of the vertical plate is considered as even, the calculation results based the model are more reasonable and reliable.

冰箱板管式冷凝器传热问题属于典型的带离散热源非均匀壁温竖板自然对流传热问题。这类问题的计算一般采用等壁温及等热流密度条件下的Nu数实验关联式。由于空气侧自然对流传热与平板导热耦合,对于这种冷凝器若按等壁温边界条件计算,往往误差较大。为此,在建立了数学模型和进行大量相关实验的基础上,对非等温壁面分区进行局部传热系数的研究。针对一冰箱冷凝器调查了8种实验条件下的传热量和温度分布,采用新方法计算该冷凝器的传热量,结果与实验结果最大相对误差为9.19%,均方根误差为5.68W,与传统方法比较说明新方法有较高的可靠性。

 
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