Using the variable transformation method, the formulae of the axial symmetrical wall temperature distribution during steady heat conduction of a hollow cylinder are derived in this paper. 采用坐标变换法导出了圆筒空间轴对称问题稳态热传导温度分布的关系式。
The study on the allowable axial load ratio of concrete shear wall without confined boundary elements 无约束边缘构件混凝土剪力墙的轴压比限值研究
Experimental Study on the Axial Compression Strength of CS Wall Slabs CS墙板轴心受压承载力的试验研究
Effects of axial heat conduction in the wall on convective heat transfer in microtube have been studied analytically. 本文通过数值解析的方法研究了考虑壁面轴向导热时微细管内的对流换热。
The axial force of middle wall decreases with the increase of the middle heading, the width of middle heading influences greater. 中墙轴力随中导坑的扩大而减小,其中中导坑宽度影响较大;
In a newly designed gas heat exchanger, wavy expanded-contracted pipes are selected for enhancing heat transfer. Axial vortex forms on pipe wall while fluid flows onto flute, so strengthening disturbance of boundary layer and destroying laminar layer to promote heat transfer through boundary layer. 新设计的换热器采用波形扩缩管强化传热,管内流体流经凹槽处时在管壁上形成旋涡,加强了流体边界层的扰动,破坏了滞流底层,有利于热量通过边界层的传递。
By using theoretical calculation, the relationship of boundary constrain extend and axial compression ratio with shear wall deformability is studied. 通过理论计算,研究了轴压比、端部约束箍筋数量等与剪力墙位变形能力的关系;
An integral method for low Peclet number laminar pipe-flow heat transfer with simultaneous axial conduction of fluid and wall 低Pe数流体管内层流换热的积分解&同时考虑流体和管壁的轴向导热
At the same axial location, wall temperature increases linearly as the engine frequency increases. 同一轴向位置处,壁温随爆震频率的升高而升高,并呈线性关系。
The calculation formulas are derived with analytical method for rolling pressure, total rolling force and mandrel axial force in wall thinning zone of sizing rolls and a conic-cylindrical mandrel. 用解析法求出了锥-柱形芯棒定径辊减壁区轧制压力、总轧制力及芯棒轴向力的计算公式。
Axial tension of vessel wall bending movement of radial artery at wrist 寸口桡动脉助弯曲振动与管壁轴向张力
Increasing brace pre axial force can effectively control the wall displacement and reduce negative bending moment. 增大支撑预加轴力可以有效的控制连续墙的变形,减小墙身负弯矩。
Heat transfer of whirl burner includes conduction, convection and radiation. According to the heat balance equation, in the paper the mathematical model of axial wall temperature distribution of whirl burner is set up and based on the model, wall temperature distribution is calculated. 根据传热的热平衡方程给出了旋流燃烧器轴向壁温分布的数学模型,并计算出某电厂燃烧器的壁温分布。
Effect of axial force ie flexible wall of underground structure 轴向力对地下结构柔性墙的影响
To accurately measure the surface temperature field of the microtube and solve the influence of axial heat conduction along the wall of the microtube on convective heat transfer in the microtube, non-contact temperature measuring method is firstly used in the microscale experiment. 为了准确测量微管外表面温度场的分布,并解决沿微管轴向导热对微管内部对流换热的影响,本文把非接触式测量温度方法引入到微尺度实验中。
The effect of curvature, torsion and Dean number on secondary flow, the isoline of stream function, the distribution of axial speed and wall friction is discussed in detail. 详细讨论了曲率、挠率、Dean数对二次流动、流函数等值线和轴向速度的分布以及壁面摩擦力的影晌。
Investigation on the Characteristics of Axial Flow Compressor Casing Wall Static Pressure Fluctuations 轴流式压气机机匣壁面静压脉动特征研究
Regularity of Supporting Axial Force and Diaphragm Wall Displacement on the Basis of Deformation Control Design 基于变形控制设计的支撑轴力与地墙位移规律探讨
Investigations of an Axial Compressor End Wall Boundary Layer Prediction Method 轴流压气机端壁附面层的理论预测
The energy equation combining with the boundary condition of temperature jump and axial wall heat conduction, the theoretical deduction of convective and conduction differential equations are obtained in the micro channel. 对微通道在不同的热边界条件下的对流和传导微分方程进行了理论推导,并利用分离变量法求解其微分方程,得到温度场含有参数解的形式。
It is found that the effects of combined axial conduction of fluid and wall on laminar pipe-flow heat transfer in thermal entrance with low Pe number are substantial. The explicit formulae of the pipe-flow problems bring quite convenience for their hydraulic computations. 在低Pe数流体管内层流热发展段的换热问题中,流体及管壁的轴向导热是不容忽视的。管道水力计算显式计算式使有压管道的水力计算更为方便。
Clam-on and differential pressure flowmeter produces sound waves travelling in axial direction along the pipe wall with the help of natural sound waves conduit in the pipeline excited by wide electronic beam vibrator. 钳式时差式流量计是利用宽幅电子束振子激励管道中的自然声波导管,以便产生一沿管壁轴向传播的声波。
In the experiment, the infrared radiation and axial distribution of wall temperature and near wall flow pressure were measured with and without film cooling. 得到了各冷却方案喷管的壁面压力分布、壁温分布和红外辐射特性。
Experimental Study on Effect of Axial Heat Conduction in the Wall on Thermal Convection in Mini-tube 固壁轴向导热对微小管内对流换热影响的实验研究
But a quantity of theory research and few tests on axial compressure of cold-formed medium wall steel have been done, and there is no special code at all. 但目前有关中厚壁冷弯型钢轴心压杆的试验和理论研究十分有限,更没有专门的设计规范。
ANALYTICAL SOLUTION OF AXIAL SYMMETRICAL WALL TEMPERATURE DISTRIBUTION FOR HOLLOW CYLINDER Analytic Solution and Application to Oil-gathering Pipeline Unstable Heat Transfer 圆筒空间轴对称稳态热传导解析解(英文)集油管道非稳态传热的解析解及应用
It is shown that the compressible shaft wall can reduce the additional force and the section axial stress of shaft wall effectively; 研究表明,可缩性井壁可有效衰减附加力和井壁截面轴向应力;
Method to increase the limited values on axial compression ratio of shear wall 提高剪力墙轴压比限值的方法
Experimental study on axial wall heat conduction for steel microtube under forced convection 对流换热条件下微钢管壁面轴向导热的实验研究
In the range of some depth, the axial force of middle wall increases with the increase of buried depth. 在一定范围内,随着埋深的增加中墙受力增大;