1)convective heat transfer coefficient对流换热系数
1.Research on convective heat transfer coefficient with air jet impinging;气体射流冲击对流换热系数试验研究
2.Principle and application of the curve-fitting method for convective heat transfer coefficient;对流换热系数曲线拟合法的原理和应用
3.Study on convective heat transfer coefficient in evaporating section of loop heat pipe used in air conditioning;空调用环形热管换热器蒸发段管内对流换热系数研究
英文短句/例句
1.The main parameterof heat convection process is heat transfer coefficient.反映对流换热过程特性的主要参数是对流换热系数。
2.CFD Simulation of Convective Heat-Transfer Coefficient of External Surfaces of Buildings建筑外表面对流换热系数的CFD模拟
3.Based on a lot of experimental data, the empirical correlations of single-phase heat transfer coefficient, condensation heat transfer coefficient and pressure drop factors are given.根据大量实验数据，得到了计算对流换热系数、冷凝换热系数及阻力系数的经验关联式。
4.The coefficient of convection heat transfer increases with increasing the particle diameters.对流换热系数随着颗粒直径的增大而增大。
5.An Investigation of the Coefficient of Convective Heat Transfer at Different Boundary Condition;不同边界条件下园管对流换热系数的研究
6.Development of kind of heat transfer coefficient sensor based on steady method基于稳态方法的对流换热系数传感器研制
7.Numerical study on adiabatic wall cooling effectiveness and convective heat transfer coefficient of effusion cooling致密孔阵气膜冷却绝热温比和对流换热系数的数值研究
8.A FORMULA FOR AVERAGE CONVECTIVE COEFFICIENTIN LAMINAR BOUNDARY LAYER OVER A PLATE WITHUNHEATED LEADING EDGE介绍一个非前缘加热的平均对流换热系数的计算公式
9.Analyzing Security of Startup Process of 600MW Steam Turbine is Based on Viral Convection Hot Coefficient;基于变对流换热系数的600MW汽轮机启动过程安全性分析
10.NUMERICAL SIMULATION OF MIXED CONVECTION OUTSIDE THE PARABOLIC TROUGH SOLAR RECEIVER槽式集热器吸热管外混合对流换热数值模拟
11.The effect of Nusselt number on the heat convection in the curved pipes;Nusselt数在弯管对流换热中的作用
12.Numerical Simulation of Convection Heat Transfer with Pulsating Flow and Spiral Flow in a Duct;管内流体脉动及螺旋流对流换热的数值模拟
13.MATHEMATICAL SIMULATIONS OF HEAT CONVECTION PROCESS OF SCRAP PREHEATER FOR ELECTRICAL ARC FURNACE电弧炉废钢预热器对流换热过程的数学模拟
14.EFFECT OF PRANDTAL NUMBER ON COMBINED THERMALLY AND ELECTROMAGNETICALLY DRIVEN CONVECTION HEAT TRANSFER IN A CAVITY普朗特数对槽内热磁耦合流动换热影响
15.Experimental Investigation of RP-3 Convective Recuperation Law Based on Supercritical RP-3 Flow Recuperation System基于超临界RP-3流动换热系统的RP-3对流换热规律试验研究
16.Effects of pin-fin's geometry parameters on flow resistance and heat transfer characteristics of lamilloy扰流柱几何参数对层板流阻和换热特性的影响
17.Numerical Study on Turbulent Mixed Convection in Inclined Rectangular Channels倾斜矩形通道中湍流混合对流换热的数值分析
18.Heat transfer coefficient'comprising convective and radioative components may strongly depend on the actural flow enthalpy and density.热交换系数由对流和辐射两部分组成，这系数极大地依赖于实际活动的焓和密度。
相关短句/例句
convection heat transfer coefficient对流换热系数
1.A Method of Inverse Evaluation for the Convection Heat Transfer Coefficient;对流换热系数的反求方法
2.Using the approach of mathematical modeling, the convection heat transfer coefficient on each surface of a coil are studied for the complete cycle of annealing.介绍影响全氢罩式退火炉内换热的两个重要参数——对流换热系数和钢卷径向等效导热系数,详尽分析了两个参数的影响因素,并对比了氮气和氢气气氛下两参数的不同,从而在机理上阐明了全氢罩式炉相对传统混氢罩式炉的优越性,为优化炉内换热提供了理论的依据。
3.An optimized convection heat transfer coefficient for laminar cooling has been obtained by using BP neural network combined with mathematic model to predict coiling temperature accurately on 2050 hot strip mill at Baosteel.针对宝山钢铁 (集团 )公司 2 0 5 0热连轧层流冷却系统 ,采用神经网络与数学模型相结合的方法 ,给出优化的层流冷却对流换热系数 ,以实现准确地预报卷取温度的目的。
3)heat transfer coefficient对流换热系数
1.Development of kind of heat transfer coefficient sensor based on steady method基于稳态方法的对流换热系数传感器研制
2.After comparisions of seven different models, the Precisest model of heat transfer coefficient is proposed.本文以武钢１７００热连轧厂层流冷却现场实测数据为基础，通过传热学的理论分析，确定了对流换热系数是解决问题的关键，并对７种模型结构形式进行了比较，研制了精度较高的对流换热系数数学模型，在此基础上编写了模拟武钢１７００连轧层流冷却过程的程序，取得了较高的模拟精度。
3.A transient method of measuring heat transfer coefficients inside a tube has been presented.1前言 直接测定对流换热系数的方法分稳态法和瞬态法,前者对实验条件要求苛刻。
4)convection coefficient对流换热系数
1.Meanwhile, the convection coefficient was obtained.通过运用有限元分析软件ANSYS模拟研究了螺旋槽管换热器在换热过程中速度场与温度场的状况,分别得到了螺旋槽管内壁与外壁的对流换热系数。
2.The models for calculating bearing heat generation, graphite seal heat generation, heat input leaking from the graphite seal, convection coefficients and temperature fields of the bearing oil cavity are established, which lays the foundation for the calculation of both temperature fields of the bearing oil cavity and optimal oil supply of engines.分析影响轴承腔热状态的主要热源，建立了轴承及石墨密封摩擦热、密封热泄漏量、对流换热系数及轴承腔温度场计算模型。
5)coefficient of convective heat transfer对流换热系数
1.Calculation methods of coefficient of convective heat transfer for high-intermediate pressure outer cylinder in turbine are summarized.介绍了汽轮机高中压外缸不同部位的对流换热系数计算方法,分别用有限差分法和有限元法分析了某机组的高中压外缸的温度场,并将分析结果进行了对比,为高中压外缸的热应力分析奠定了基础。
2.The research on the coefficient of convective heat transfer and the heat of emission of two kinds of fluids as heating medium .并通过试验台分别对两种流体热媒的采暖系统表面对流换热系数及散热量进行实测研究。
6)heat convection coefficient对流换热系数
1.Solution for heat convection coefficient of automotive drum brake with experiments;实验法求解汽车鼓式制动器对流换热系数
2.The results indicate that local heat convection coefficient distrib.以某公司大方坯蓄热式连续加热炉为研究对象,对该炉建立了三维物理数学模型,分别采用可实现双方程湍流模型、PDF非预混燃烧模型、离散坐标法辐射模型(DO模型),应用Fluent数值仿真软件进行了模拟研究,得到了蓄热式连续加热炉内的流场和温度场的分布规律,并对炉内对流换热系数的分布进行了详细的分析研究。
延伸阅读
换热 指冷热两流体间所进行的热量传递，是一种属于传热过程的单元操作。换热的目的主要有：①物料的加热、冷却、汽化或冷凝，以达到或保持生产工艺所要求的温度或相态；②热量的综合利用，用待冷却的热流体向待 加热的冷流体供热，以提高热量利用率。换热操作广泛应用于各工程领域，与化学工业的关系尤为密切。在化工生产中，换热在两种流体物料间进行，或在流体物料与载热体间进行。载热体是一类专门用来接受或提供热量的流体，最常用的载热体有蒸汽、水和空气。冷热两流体间的换热通常在换热器中进行。按冷热流体的接触传热方式，换热器分为间壁式、接触式和蓄热式，尤以间壁式换热器的应用最广。 换热计算的重点是间壁式换热器的计算。或已知待冷却的热流体质量流量为，温度为T1,要求冷却后温度为T2，则所需换热面积的计算步骤为：①计算热流量： 式中为热流体的比热容;②选择冷却剂及其进出口温度t2和t1，由热量衡算计算出冷却剂的质量流量： 式中为冷却剂的比热容;③选定冷热流体的流动条件，计算或测定传热分系数及传热系数K;④由冷热两流体的进出口温度及选定的两流体的流动方式，计算平均温度差 Δtm；⑥根据传热基本方程式（见传热过程）算出传热面积： A＝Q/(KΔtm) 进行上述计算时，须作出若干选择，而不同的选择会得出不同的结果。设计者须对多种方案进行比较，从中选出一个经济上合理、技术上可行的方案。此外，若换热器对流体的流动阻力有限制，可从流速选择和换热器结构等方面予以调整。 还可用传热单元数法进行换热计算。这种方法用于原有换热器的传热性能核算更为方便。
