With similarity considerations on governing equations, the heat transfer of mixed convection can be predicted to be controlled by Archimedes number and geometric factors.
通过控制方程的相似律分析,可预言混合对流传热由阿基米德数和几何因子控制。
The irreversibility of heat transfer and fluid flow in regenerative he at exchanger was analyzed, and the number of entropy generation units was introduced.
分析了蓄热式热交换器传热和流动过程的不可逆性,提出了熵产数的概念。
The results show that the performance of heat transfer in lower re number region is poly tropic, and that in higher re region is similar to conventional channel.
结果表明,窄隙流道内的换热在低雷诺数区表现出与普通流道不同的多变特性,而在高雷诺数区与普通流道相近。
It is generally obtained by the experimental method, namely using Newton cooling formula to get tube outside heat transfer coefficient, then get the tube outside Nusselt number.
一般通过实验的方法求得,即运用牛顿冷却公式求出管外对流换热系数,进而求得管外努谢尔数。
A critical length concept is introduced to describe the heat transfer performance of thin film flows with high Reynolds number in this investigation.
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。
The equilibrium water content of the solids for drying, the number of mass transfer units for gas absorption and mass flow rate for heat transfer system were obtained using MATLAB.
用MATLAB计算食品过程中的物料平衡含水量、气体吸收的传质单元数和传热过程的调节,研究基于MATLAB的非线性方程、非线性方程组的求解和数值积分功能的应用。
The process doesn't exhibit fully laminar unless the reference Reynolds number based on the location of peak heat transfer on compression ramp is low enough.
只有基于再附峰值热流率位置长度的参考温度条件下的雷诺数足够低,相互作用过程才能是纯层流的。
The relationship between heat transfer performance and Reynolds number in three C-D tubes having different rib heights 1.
对光滑圆管与粗糙管内的湍流流动及传热边界层进行了分析,通过实验比较了三种不同肋高1。
In high Reynolds number range of 10,000 ~ 90,000, the flow friction factor, local and average convection heat transfer coefficients were determined.
在10,000 ~ 90,000的高雷诺数范围内,测量了流动摩擦系数、局部和平均对流换热系数。
A huge amount of experimental data is synthesized to establish a dimensionless number equation for intensified boiling heat transfer.
并综合大量实验数据建立强化沸腾传热准数方程序。
In this paper the results of calculations of the coefficients of skin friction and heat transfer (Stanton number) on the surface of hypersonic flight vehicle are presented.
本文给出了高超声速飞行器表面摩阻和传热系数(斯坦顿数)的计算结果。
The influence of mass diffusion coefficient on the coupled heat transfer is small, and the increase of Reynolds number can restrain the component diffusion.
质扩散系数对耦合换热的影响很小,入口雷诺数的增加会抑制质扩散。
Secondly, heat transfer distribution of the wall is not significantly affected by changes in suction ratios and Reynolds number.
②出流比和雷诺数的改变对全表面的换热分布规律影响不大;
Experimental results of heat transfer to rough walls are given here for sphere cone models at Mach number 5.
本文介绍了来流马赫数5的条件下,典型球锥模型的粗糙壁热交换实验结果。
In this paper, increase with Reynolds number, we first find that 3-d IFT with staggered arrangement fins and smooth tube's heat transfer characteristic curve will have a point of intersection.
本文研究还首次发现在层流区,随着雷诺数的增加,肋叉排三维内肋管和光管的换热特性曲线会出现一个交点即换热有效折点。
The higher the Renolds number, the more intensive the convective heat transfer inside the hole.
孔内雷诺数对换热增强幅度影响较大,孔内雷诺数越高,换热增强越大。
The heat transfer was augmented distinctly with increase of Reynolds number. The bleeding ratio also affects the value and distributions of heat transfer coefficients of all inner surfaces.
换热随雷诺数的增大而增强。出流比对各个面的换热分布及大小也有一定影响。
The effects of heat transfer units number, heat capacity ratio of fluids and flow patterns on exergy-transfer effectiveness are discussed. The comparison among exergy -...
讨论了传热单元数、冷热流体热容量比和流型对换热器传递有效度的影响,并把换热器传递有效度和效率以及换热器无因次熵产数进行了比较。
The effects of heat transfer units number, heat capacity ratio of fluids and flow patterns on exergy-transfer effectiveness are discussed. The comparison among exergy -...
讨论了传热单元数、冷热流体热容量比和流型对换热器传递有效度的影响,并把换热器传递有效度和效率以及换热器无因次熵产数进行了比较。
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