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层流自然对流
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  laminar natural convection
     In this paper, We applying infinitesimal form of the transformation groups theory, the ex-istance of Similarity Solutions for steady laminar natural convection flow caused by cheimical diffusion and reaction along a vertical flat plate is presented and proved, While conventration difference between the wall & surroundmg varies in accordance with x1/(3-2a).
     本文应用无限小变换群理论,证明在壁面浓度与环境浓度之差,按x~(1/(3-2n))变化时,由于化学反应和扩散引起的沿垂直平板的定常层流自然对流是存在相似性解的。
短句来源
     A SECOND ORDER PROJECTION METHOD FOR LAMINAR NATURAL CONVECTION
     层流自然对流传热的一种二阶投影方法
短句来源
     Two unsteady numerical methods are used for the laminar natural convection flows for a series of Reyleigh numbers (Ra) in an enclosure.
     采用两种时间推进数值方法,对封闭腔内层流自然对流换热进行了各种瑞利数(Ra)条件下的模拟研究,总结了流态转捩时所表现的数值模拟方面的某些现象规律.
短句来源
     Numerical Computation of Laminar Natural Convection around a Horizontal Circular Cylinder
     绕水平圆柱层流自然对流数值模拟
短句来源
     Existence Conditions and Similarity Solutions for Laminar Natural Convection near Vertical Cylinders
     垂直圆柱层流自然对流存在相似解的条件及其相似性解
短句来源
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  “层流自然对流”译为未确定词的双语例句
     The results shows that using this method to solve the equations is feasible.
     结果表明 ,用此方法求解三维层流自然对流换热边界层方程是可行的。
短句来源
     Numerical Computation of 3-D Laminar Boundary Layer Equations of Natural Convection Heat Transfer
     三维层流自然对流换热边界层方程的数值解法
短句来源
     Therefore, it can be applied to research the natural convection problems with high Grashof number within the laminar flow.
     因此,该方法可适用于高Ra数的层流自然对流问题的研究。
短句来源
     In this paper applying Morgan's two parameter transformation groups theory, we analyzed the similarity solution for incompressible unsteady laminar natural convective boundary layer flow on a vertical stretching sheet.
     用Morgan的双参数变换群理论,对磁场作用下的伸展垂直薄片的不可压缩非定常层流自然对流边界层流动进行相似性分析,得到了三种情况下的相似性解方程组。
短句来源
     A Numerical Study of Natural Convective Heat Transfer of Air in a Vertical Annular Enclosure with Large Aspect Ratio
     大高宽比竖环形封闭空腔内层流自然对流换热的数值研究
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  相似匹配句对
     A Study on Mathematical Model of the Conduction of Heat by Natural Convection in Space
     大容积自然对流层流传热的数学模型研究
短句来源
     TWO-DIMENSIONAL LAMINAR-FLOW NUMERICAL CALCULATION FOR NATURAL CONVECTION IN ROOM CONDITION
     二维层流室内自然对流数值解
短句来源
     Numerical Computation of Laminar Natural Convection around a Horizontal Circular Cylinder
     绕水平圆柱层流自然对流数值模拟
短句来源
     Numerical Study on the Flow Transition in Laminar Natural Convection Flow in a Square Cavity
     封闭腔内层流自然对流换热过渡层数值研究
短句来源
     A SECOND ORDER PROJECTION METHOD FOR LAMINAR NATURAL CONVECTION
     层流自然对流传热的一种二阶投影方法
短句来源
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  laminar natural convection
Heat transfer in the evacuated collector tube is a three-dimensional laminar natural convection problem driven by buoyancy.
      
Laminar natural convection in an enclosure divided by an adiabatic partition on its bottom with two unequal discrete heat sources was investigated numerically.
      
Effect of a temperature gradient on the heat transfer during laminar natural convection along a vertical wall
      
Influence of thickness and wall thermal conductivity on heat transfer in laminar natural convection of air in a cubical cavity
      
Conjugate transient heat transfer in laminar natural convection in a horizontal cylindrical annulus
      
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The study presents a numerical iterative method to solve two-dimensional natural convection problems. It is shown that the calculating scheme is stable. Moreover, the overall iteration is used, and the vorticity at the wall is calculated in terms of velocity components so that the accuracy of the result may be improved to some extent. Therefore, it can be applied to research the natural convection problems with high Grashof number within the laminar flow.

本文对二维自然对流问题给出了一种迭代计算方法。由于该格式是稳定的,同时在总体上采用了迭代过程以及用速度分量计算壁面漩涡度的计算公式(17),在一定程度上提高了计算的精度。因此,该方法可适用于高Ra数的层流自然对流问题的研究。

Unsteady and steady, two-dimensional, laminar natural convect-icn heat transfer has been numerically investigated for the square enclosure formed by two vertical finite conductance walls and two horizontal zero-thick adiabatic walls. The calculated parameters cover a range of Ra from 10~4 to 5×10~6, a from 0.1 to 43.6, k from 1.0 to 100.0 and t from 0.11 to 0.40. The velocities vector plots, temperature profiles and the history of the ratio of the Nusselt numbers have been given out. The hysteresis time of heat...

Unsteady and steady, two-dimensional, laminar natural convect-icn heat transfer has been numerically investigated for the square enclosure formed by two vertical finite conductance walls and two horizontal zero-thick adiabatic walls. The calculated parameters cover a range of Ra from 10~4 to 5×10~6, a from 0.1 to 43.6, k from 1.0 to 100.0 and t from 0.11 to 0.40. The velocities vector plots, temperature profiles and the history of the ratio of the Nusselt numbers have been given out. The hysteresis time of heat transfer on the cold surface defined. The average and local Nusselt numbers obtained. The results show that the natural convection heat atansfer in enclosures is significantly influenced by the physical properties of walls.

本文描述具有两个竖直导热壁的封闭空腔内非稳态、二维、层流自然对流换热的数值分析结果。计算参数范围为Rα=10~4~5X10~6,0.1~43.6,K~*=1~100,t~*=0.11~0.40。给出了速度场和温度分布,得到了热壁和冷壁的平均和局部努谢尔特数,确定了相对于总温差和冷热壁内侧温差的努谢尔特数比的时间历程,并定义了冷壁传热的滞后时间概念,结果表明这些参数显著地受导热壁物性的影响。

A numerical analysis is carried out for the unsteady and steady, two-dimensional, laminar natural convection heat transfer in a square partial cavity. The partial cavity consists of two horizontal adiabatic surfaces, a vertical hot surface and a cold surface with varied opening. The results are obtained for Ra = 10~3-10~6 and Y0 = 0.0-1.0. This study shows that the opening size has significant effect on the flow and heat transfer in partial cavity, and the. extent of its effect changes with different Rayleigh...

A numerical analysis is carried out for the unsteady and steady, two-dimensional, laminar natural convection heat transfer in a square partial cavity. The partial cavity consists of two horizontal adiabatic surfaces, a vertical hot surface and a cold surface with varied opening. The results are obtained for Ra = 10~3-10~6 and Y0 = 0.0-1.0. This study shows that the opening size has significant effect on the flow and heat transfer in partial cavity, and the. extent of its effect changes with different Rayleigh numbers.

本文描述具有部分开口的方形空腔内的非稳态及稳态的二维层流自然对流传热的数值分析结果。方形空腔由两个水平绝热壁、一个竖直加热壁而另一个竖直壁为冷壁但具有变化的开口度组成。数值结果覆盖了雷利数Rα=10~3~10~6及开口度Y_0=0.0~1.0。结果表明开口度对空腔内的自然对流流动与传热有显著的影响,且影响的程度随雷利数改变而变化。

 
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