探讨了对流换热系数的分离方法。
A method for the separation of convection heat exchange factors is explored.
凝结换热系数随内管径的增大而减小。
The heat transfer coefficient increased with the inner tube diameter decreased.
对流换热系数随着颗粒直径的增大而增大。
The coefficient of convection heat transfer increases with increasing the particle diameters.
在工艺参数优化时，换热系数是一个理想的目标变量。
The heat transfer coefficient is a perfect object variable to optimize.
研究结果得到操作参数对床内局部换热系数的影响规律。
The effects of various operating parameters on the local heat transfer coefficients are obtained.
用半无限大导热理论对瞬态导热过程进行换热系数求解。
The heat transfer coefficient is obtained by solution of semi-infinity heat conduction theory.
升力体模型对流换热系数测量不确定度大致为15%左右。
The uncertainty in measured convective heat-transfer coefficient on lifting body model was about 15%.
同时也获得了多股射流冲击冷却的对流换热系数等值线谱图。
The isograms of heat transfer coefficients of impingement cooling are also obtained.
结果表明，混凝土表面对流换热系数与风速基本呈线性关系。
The test results indicate that there is linear relationship between surface convection coefficient of concrete and wind velocity.
不同含油率下，沸腾平均换热系数随质量含油率的增加而增加。
The average evaporation heat transfer coefficient decreases with the increasing of the oil concentration.
当对流换热系数足够大时，再改变对流换热系数对温度影响较小。
If the convective heat transfer coefficient is great enough, its rechange has smaller effect on temperature response.
考察了对流换热系数、吸收系数对三层复合层瞬态耦合换热的影响。
The influences of convective coefficient and absorbing coefficient on coupled heat transfer are investigated in detail.
建筑外表面对流换热系数是建筑节能和城市环境模拟中的重要参数。
The convective heat transfer coefficient(CHTC) of building exterior surface is an important parameter for energy-saving and urban environment simulation.
根据实验结果给出了计算主盘表面平均对流换热系数的经验关系式。
An experimental correlation of the averaged heat transfer coefficient on the main surface is formulated.
另外，研究了消失模铸造法铸型表面硬度、界面换热系数的变化规律。
Moreover, the variation law of mold surface hardness and interface heat transfer coefficient were studied.
实验结果表明：随着饱和蒸汽温度的提高，C管的凝结换热系数下降。
Experimental results show that the condensation heat transfer coefficient of thermoexcel-C tube decreases as the saturation vapor temperature increasing.
本文全面分析了各因素对对流换热系数精度的影响，并进行了定量分析。
The influence of various parameters on the measuring accuracy of the convective heat-transfer coefficient was analyzed quantitatively.
就引射、局部换热系数径向分布峰值出现的位置及机理进行了分析、讨论。
Obtained are the locations of two peaks in the radial direction and the local Nusselt number.
对不同翅片内插件高温换热管辐射传热对整体换热系数的影响进行了讨论。
With each insert, friction factor characteristics and the effect of radiant heat transfer enhancement to overall heart transfer coefficients are analysed.
截面平均换热系数则与质量流速、热流密度、质量干度和蒸发压力密切相关。
The perimeter averaged heat transfer coefficients depend on heat flux, mass flow rate, quality and saturated pressure.
通常，对流换热系数是在实验中以电加热试验管壁面后根据牛顿冷却定律计算得来的。
Normally, coefficient of convective heat transfer is gotten through experiments which is heating testing tube by electricity and computed through Newton cooling law.
本文分析了降液膜高雷诺数区域换热系数随液膜长度变化趋势，引出临界长度的概念。
A critical length concept is introduced to describe the heat transfer performance of thin film flows with high Reynolds number in this investigation.
影响双金属轧片式翅片管的传热性能的一个重要因素是管外气体一侧的对流换热系数。
A important factor affecting heat transfer ability of double metal rolling fin tubes is gas-side heat transfer coefficient.
计算得出，由于热流计测头的出现，对流换热系数的变化会给热流测量带来较大误差。
Conclusions can be drawn that changes of the convective heat transfer coefficients can bring error because of the appearance of heat flux sensors.
首次提出了用频率谱分析法分析墙体表面换热过程及推导墙体表面换热系数的实验方法。
This paper first presents an experimental procedure to analyze wall surface heat transfer process and derive wall surface heat transfer coefficient by frequency spectral analysis method.
微通道中局部对流换热系数受到液氮导热系数变化的影响沿管程逐渐下降约12.5%。
Local convection heat transfer coefficient decreases along the micro-tube by 12.5% for the influence of thermal conductivity of liquid nitrogen.
列车速度提高可以增强车壁的对流换热系数，进而减小辐射的影响，降低壁面综合温度。
Accelerating the train speed will increase convection and cut down the influence of radiation so as to lower the integrated temperature of walls.
基于边界条件替换方法建立了高炉冷却壁本体和捣打料与炉气之间的换热系数计算模型。
A calculation model of the coefficient of heat transfer between gas and stave body and inlaid refractory is built based on the substitution method of boundary condition.
基于边界条件替换方法建立了高炉冷却壁本体和捣打料与炉气之间的换热系数计算模型。
A calculation model of the coefficient of heat transfer between gas and stave body and inlaid refractory is built based on the substitution method of boundary condition.
应用推荐