2) radiative heat transfer
辐射换热
1.
Analysis and calculation on the characteristics for radiative heat transfer of flue gas with high carbon dioxide concentration
高浓度二氧化碳烟气辐射换热特性分析与计算
2.
Finite element diffusion-synthetic acceleration for radiative heat transfer in participating medium
介质辐射换热有限元法的扩散综合加速算法
3.
An improved Monte Carlo ray tracing approach has been developed, which combines the space division and the directional solidification features in production of turbine blades, the view factor calculation which is a key step and takes too much time in traditional radiative heat transfer approaches can be avoided so that the time consuming is greatly shortened.
提出改进型Monte Carlo射线追踪法进行辐射换热计算,通过子空间的划分,并结合定向凝固的特点回避了传统辐射换热计算中角系数的直接计算,节省了计算时间。
3) radiation heat transfer
辐射换热
1.
Discussion of convection heat transfer and radiation heat transfer of annealing coil;
退火钢卷辐射换热及对流换热的讨论
2.
Engineering Application and Numerical Analysis of Radiation Heat Transfer in Complex Geometry;
复杂结构辐射换热工程应用及数值计算
3.
In view of the characteristic of VGF (Vertical Gradient Freeze) technique, the radiation heat transfer model of the VGF furnace is established, and detailed simulations of the radiation heat transfer in the VGF system using a finite difference method under the varying temperature condition is presented.
根据VGF结晶技术的特点,建立了结晶炉内的辐射换热模型,并利用有限差分法对变温条件下砷化镓晶体表面的辐射换热进行了数值求解。
4) radiant heat transfer
辐射换热
1.
Coupling with heat conduction differential equation of the workpiece,the mathematical model of heat transfer is established in the forge furnace by zone method for making the model of radiant heat transfer .
分析了锻造炉内的热工特性,采用区域法建立炉内辐射换热数学模型,并与炉内工件的导热方程相耦合,建立炉内传热数学模型;通过求解数学模型分析了不同的两工件间距离对被加热工件温度分布的影响。
2.
Coupling with heat conduction differential equations of the thin slab and the furnace lining,the mathematical model of heat transfer is established in the long one dimension furnace by using zone method for making the model of radiant heat transfer.
通过分析CSP工艺中直通式辊底加热炉的热工及结构特性 ,采用区域法建立炉内辐射换热数学模型 ,与加热炉内连铸坯及炉衬的一维导热方程相耦合 ,建立长一维直通式辊底加热炉炉内传热数学模型 通过对数学模型的求解 ,研究分析了不同的薄板坯移动速度及钢种对加热炉炉内温度分布的影
3.
Three dimensional radiant heat transfer is usually calculated even in the case of those with two dimensional characteristics.
辐射换热通常按三维方法计算。
5) radiative heat exchange
辐射换热
1.
The gas radiation network units under the general gas radiative conditions is established,and the calculating formula of radiative heat exchange guantity between gas and aroud wall is derived by radiation network units and network analysis.
建立了一般气体辐射条件下气体辐射网络单元 ,并由此用网络分析法导出了气体与围壁间的辐射换热量计算公式 ,结果与传统法导出的完全一样。
2.
This paper shows us the deficiency on finding the solution of radiative heat exchange problem in a flame hearth by radiation network unit advanced by Hu Chang Gou in the literature.
指出了用文献 [1]提出的辐射网络单元求解火焰炉膛内辐射换热问题的不足之处 ,提出了更具普遍性的新的辐射网络单元。
6) radiant heat exchange
辐射换热
1.
Analyses of radiant heat exchange in an enclosure with homogeneous scattering media;
均匀散射介质参与体系辐射换热分析
2.
Based on the calculation of radiant heat exchange with 2-D heat flux method in paper 1, a computer program has been developed in 3-D rectangular coordinate system for calculating the temperature profile on radiant heat transfer with the flux mathematical model in paper 2.
本文在文献〔1〕二维热流法计算辐射换热的基础上,运用文献〔2〕提出的热流数学模型,在三维直角坐标系下开发了用热流法计算高温炉内辐射换热的温度场分布的计算程序,用该程序可以计算一般情况下纯辐射作用时炉内的温度分布,通过计算得到了炉内的温度分布,为全面研究高温炉热状态提供了依据和前提条件,同时得出在一般简化计算中二维模型的可靠性结论。
3.
Accoording to the new heat flux method which is discussed in liberature 4, we developed a computer program containing heat flux equations and an energy equation in a two-dimensional rectangular coordinate system in this article, Using this program we calcu- lated the radiant heat exchange and obtained the temperature profile in a high-temperature furnace.
用该程序计算了高温炉内的辐射换热,得到了高温炉内的温度分布。
补充资料：热辐射和非热辐射
如果辐射源（等离子体、中性气体云等）处于热动平衡或局部热动平衡状态，即系统内质点（分子、原子、离子、电子等）的能量分布可以用一定温度下的玻耳兹曼分布律表示，则其辐射称为热辐射；反之，如果辐射源中质点远离热动平衡分布，则其辐射称为非热辐射。近年发现的许多新型天体，如类星体、中子星、星际分子射电源、X射线源、γ射线源等,它们的辐射谱形、偏振状态、光变特性等与热辐射有明显区别，因此，非热辐射机制的研究日益受到重视。例如，类星体和射电星系所以能发射有偏振特性的幂律型射电谱，普遍认为是由远离热动平衡分布的相对论性电子在外磁场中的同步加速辐射所造成的。又如强的分子射电谱线，一般认为是来自天体微波激射源放大作用。实现这种辐射机制的条件是"粒子数反转"，要求分子的能级分布远离平衡分布，即处于高能级上的分子数多于低能级上的分子数。对于太阳的Ⅱ型及Ⅲ型射电爆发(见太阳射电爆发)，可用相对论性电子在等离子体中穿行时的切连科夫辐射说明。由这一效应产生的等离子体波，将会部分转化为射电辐射。至于相对论性电子的逆康普顿散射，则是产生γ射线的一种重要的非热辐射机制。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条