表面传热系数

此时，SK型翅片管式换热器的制冷量Φ、翅片表面传热系数h、空气侧压降ΔP和COP值都随着入口空气流速和相对湿度的增大而增大。

At this point , the cooling capacity Φ, the fin surface heat transfer coefficient h , the pressure drop Δ P values and the COP of the SK-type finned tube heat exchanger along with inlet air velocity and relative humidity increases increases .

变化的表面传热系数对磨削温度场的影响

Influence of varied heat transfer coefficient on grinding temperature field

同时在相同的入口空气流速和相对湿度下，换热器的制冷量Φ、翅片表面传热系数h和空气侧压降ΔP值随着结霜时间的进行是不断增大的。

While at the same inlet air velocity and relative humidity , the cooling capacity of heat exchanger Φ, fin surface heat transfer coefficient h and the pressure drop Δ P values are constantly increasing with the frosting time increases .

从总传热系数K中分离两侧的表面传热系数h，获得了有工程应用价值的NuRe准则关系式。

The convective heat transfer coefficient h is calculated from total heat transfer coefficient by use of equal mass flow method ( modified equal Reynolds number method ), and the Nu-Re dimensionless equation which is of engineering application value is obtained .

分别用Shah，Gungor和Jung三种当地表面传热系数公式，计算出蒸发器的当地表面传热系数和累积传热量，并将数值仿真结果和实验数据进行比较，指出Shah公式的预测值更接近实验值。

Local heat transfer coefficient and accumulated heat in the evaporator are calculated with three different correlations . Comparing the result of simulation with the one of experiments , the simulation using the correlation of Shah is the closest to the experimental data .

水平管外壁薄膜蒸发侧表面传热系数

Heat-transfer film coefficients outside tube of falling film horizontal-tube evaporator

流化床表面传热系数的直接数值模拟

Direct Numerical Simulation of Wall to Bed Heat Transfer Coefficients in a Fluidized Bed

当温度继续降低时，铸锭表面传热系数又迅速减小。

After that , the heat transfer coefficient is rapidly decreased with temperature decline .

建筑墙体表面传热系数辨识研究

System identification of wall surface heat transfer coefficient

波纹管换热器表面传热系数的遗传算法分离确定

Determination of Surface Heat Transfer Coefficient for Corrugate Pipe Heat Exchanger with Genetic Algorithm

提出了一种紧凑式换热器平均表面传热系数瞬变测试方法。

A transient testing technique for measuring average convection heat transfer coefficients of compact heat exchangers is suggested .

其次，对实验进行了详细介绍，并给出了冷凝表面传热系数实验值的计算公式。

Secondly , the experiment is introduced in detail and the correlation of the experimental values is given .

板坯连铸二冷表面传热系数预测与仿真软件

The Software for Prediction and Simulation of Surface Heat Transfer Coefficients of Secondary Cooling Area for Continuous Casting Slab

瞬态液晶技术用于复杂几何表面传热系数高分辨率的测量是成功的。

The method has been proved to be successful for high resolution measurements in internal heat transfer on surfaces with complex geometries .

基于遗传算法的交错波纹板换热器表面传热系数的分离人字形波纹板式换热器性能数值模拟的研究

Separation of Convective Heat Transfer Coefficient for Cross Wavy Surface Recuperator Based on Genetic Algorithm Hydrodynamics and thermal characteristics of chevron-type plate heat exchangers

表面传热系数、近壁区径向速度、近壁区湍流强度三者沿流向周期性变化的规律一致。

The periodically variation of heat transfer coefficient along flow direction was in exactly accordance with that of radial velocity and turbulent intensity in near wall region .

随着扰流孔的尺寸增大，表面传热系数和流动阻力均增大，但是总换热量减少；

The heat transfer coefficient and the flow resistance increase with the increase in the dimension of the interrupted holes , however , the total heat exchange decreases .

斜板沉降器固液两相流数值模拟及分离性能研究基于遗传算法的交错波纹板换热器表面传热系数的分离

Numerical Simulation of Two-Phase Flow in Inclined Settlers and Their Separation Performance ; Separation of Convective Heat Transfer Coefficient for Cross Wavy Surface Recuperator Based on Genetic Algorithm

介绍了汽轮机动叶片叶身平均对流换热表面传热系数和叶片流道下壁面对流换热表面传热系数的计算方法和计算公式。

Method and formulae for calculating the mean forced convection heat-transfer coefficient of the blade surface , as well as for the blade passage 's bottom wall , are introduced .

讨论了波纹管换热器传热系数的测定，提出了采用遗传算法将对流表面传热系数从传热系数中分离出来的方法。

Determination of heat transfer coefficient for corrugate pipe heat exchanger is discussed , and the method of separating surface heat transfer coefficient from heat transfer coefficient with genetic algorithm is put forward .

通过试验测得不同流量和喷水角度下的温度变化曲线，然后应用反传热法对表面传热系数进行了分析。

Through the experiment measured the temperature change curves of the different water flow rates and angles . Then surface heat transfer coefficient is analyzed by the method of inverse heat transfer method .

建立了用于计算板管式冷凝器空气侧换热的数学模型，模型中考虑了背板的非等温特性，确定了背板表面传热系数的计算公式，并讨论了影响空气侧换热的因素。

A simulation model is developed to calculate the heat transfer on air side of tube-plate condenser and the heat convection coefficients for the outer plate are compared in the model including the non-isothermal characteristics .

此外，在实验范围内，水平偏心环形腔内壁的平均表面传热系数还与偏心率有关，其随偏心率的增大而增大。

Additionally , the average heat transfer coefficient at inner wall in horizontal and eccentric annulus is related to eccentricity , and it increases with the increase of the eccentricity in the range of experiments .

通过传热学理论分析了单一饱和裂隙内部层流的流动状态及相对应的求解分析方法，对单一饱和裂隙于入口段的表面传热系数的计算给出了求解分析。

Analyzed the flow condition and solving method in single saturated fracture according heat transfer theory . And calculation theory analysis of the surface heat transfer coefficient for a single saturated fractured pipe are given .

建立了负重轮橡胶轮缘温度场有限元模型，给出了模型的节点生热率和表面传热系数的计算方法。

A finite element model of temperature field of road wheel 's rubber flange was established . The method of calculating heat generation ratio of the model 's node and heat transfer coefficient of surface was put forward .

推导了烟气在管内流动、均匀受热管壁的壁温计算公式，分析得出，影响壁温的主要因素是烟气温度和表面传热系数。

Wall temperature calculation formula of the tube is derivate , with fume flowing in and heated uniformly . It is founded that the fume temperature and heat liberation coefficient are the main factors that affect tube wall temperature .

本文引入区域平均表面传热系数的概念，在实验研究的基础上进行了肋基和肋端温度分布预测及肋片换热数值计算。

Based on the experimental studies of the natural convection resulting from heat transfer in a spiral finned tube , the numerical calculation was conducted , the average surface heat transfer coefficient for convection was defined and calculated , which has improved the computed temperature and fin efficiency .

着重研究了表观气速、液相粘度和液相表面张力对传热系数的影响。

The effects of the superfacial gas velocity and the viscosity and the surface tension of the liquid on the heat transfer coefficient were investigated .

实验中测量并研究有无声空化作用时液体温度、加热表面温度及传热系数的变化，旨在研究声空化参数对自然对流传热的影响。

The temperature of the liquid and test section surface and heat transfer coefficients , with and without acoustic cavitation , were measured and analyzed in order to study the effect of the parameters of acoustic cavitation on natural convective heat transfer .

在理论推导电抗器温度场分布方面，运用传热学原理和稳态热分布的有限差分法，首先计算了考虑热辐射情况下单包封表面的等效对流传热系数的分布及其表面的温度分布；

On the basis of the theories of heat transfer and finite difference , reactor 's temperature field distribution was deduced .