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自然热对流
相关语句
  natural heat convection
     A STUDY ON THE NATURAL HEAT CONVECTION AND THE WATER ROCK THERMAL EXCHANGE IN THE AQUIFER THERMAL TRANSFER PROCESS
     含水层热量输运中自然热对流和水-岩热交换作用的研究
短句来源
     The natural heat convection and the water rock thermal exchange in the aquifer thermal transfer (ATT) process are studied thoroughly in this paper in order to clarify their effect upon the process.
     本文对含水层热量输运过程中存在的自然热对流和水-岩热交换作用进行了深入研究,目的是为了弄清两种作用对热量输运的影响。
短句来源
  “自然热对流”译为未确定词的双语例句
     Horizontal convection in a narrow rectangular cavity
     水平自然热对流中流量和热通量的研究
短句来源
     The horizontal convection,which is driven by non-uniformly heating at its upper surface,is investigated in the context of a narrow rectangular cavity with aspect ratio(height to width) of 1∶10.A stable two-cell circulation is obtained when the fluid is forced with sinusoidal distribution of temperature at upper surface symmetric about a vertical axis.
     该文研究了由水平温度梯度所导致的水平自然热对流,以Pr=10的流体为例,数值模拟了在高度和宽度比为1∶10的狭长矩形腔内的流动现象。 随着Ra数增加,水平自然对流的速度加快,在两侧边界附近形成强烈的下沉流和明显的速度边界层。
短句来源
  相似匹配句对
     Since Z.
     Z .
短句来源
     After R.
     R.
短句来源
     SELF-MEMORY INTEGRATION SCHEME OF CONVECTION-DIFFUSION EQUATION
     对流扩散方程的忆积分格式
短句来源
     An Experimental Study on the Self-oscillation Impu lse Convective Heat Transfer
     激振荡脉冲对流换热的实验研究
短句来源
     Determination of Cooling Curve at Convection
     对流冷却的测定
短句来源
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  natural heat convection
A comprehensive numerical study has been done to investigate two-dimensional, steady state, conjugate natural heat convection in the hemi spherical lower plenum of a fast breeder reactor under failed conditions.
      


In the present study, a coupled mathematical model to describe the fluid flow and heat transfer in the tundish was developed. The three-dimensional flow and heat transfer in the one-strand tundish with and without flow control were numerically studied, and the functions of flow control devices in tundishes were discussed.

在开发描述中间包内钢液流动与传热三维耦合数学模型的基础上,对实际中间包内的流动和传热过程进行了计算机模拟仿真研究,考察了有/无流动控制情况下,自然热对流对中间包内钢液流动行为的影响,对流动控制装置的功能进行了分析与讨论

The natural heat convection and the water rock thermal exchange in the aquifer thermal transfer (ATT) process are studied thoroughly in this paper in order to clarify their effect upon the process. In view of the restrictions of the conventional flow and thermal transfer equations, new equations are given to describe the two actions which are simulated accordingly by construction of a three dimensional nonlinear ATT model. Then a multi well test conducted in the second confined aquifer in Shanghai provides...

The natural heat convection and the water rock thermal exchange in the aquifer thermal transfer (ATT) process are studied thoroughly in this paper in order to clarify their effect upon the process. In view of the restrictions of the conventional flow and thermal transfer equations, new equations are given to describe the two actions which are simulated accordingly by construction of a three dimensional nonlinear ATT model. Then a multi well test conducted in the second confined aquifer in Shanghai provides good data for our study. Comparison of the simulated results with the observed data shows that the natural heat convection affects the ATT process obviously and therefore can not be neglected, and that the water rock thermal exchange has insignificant effect on the ATT process because of the short duration of the process.

本文对含水层热量输运过程中存在的自然热对流和水-岩热交换作用进行了深入研究,目的是为了弄清两种作用对热量输运的影响。首先针对普通水流方程和热量输运方程的局限性,给出了能够描述这两种作用的新的数学方程,并通过建立一个非线性三维含水层热量输运模型加以实现。然后利用上海第二承压含水层的群井储能试验资料,根据不同的条件进行计算。计算结果与实测数据的对比分析表明,自然热对流通常对含水层的热量输运有明显作用,定量研究时不应忽略;水-岩热交换作用持续时间短,对整个热量输运过程影响较小。

The horizontal convection,which is driven by non-uniformly heating at its upper surface,is investigated in the context of a narrow rectangular cavity with aspect ratio(height to width) of 1∶10.A stable two-cell circulation is obtained when the fluid is forced with sinusoidal distribution of temperature at upper surface symmetric about a vertical axis.The higher Rayleigh number is,the stronger the heat convection is.The convections are investigated at Prandtl number Pr=10,over 5 decades of Rayleigh number Ra...

The horizontal convection,which is driven by non-uniformly heating at its upper surface,is investigated in the context of a narrow rectangular cavity with aspect ratio(height to width) of 1∶10.A stable two-cell circulation is obtained when the fluid is forced with sinusoidal distribution of temperature at upper surface symmetric about a vertical axis.The higher Rayleigh number is,the stronger the heat convection is.The convections are investigated at Prandtl number Pr=10,over 5 decades of Rayleigh number Ra from 10~4 to 10~9.Both the flow rate and heat flux are linearly proportional to the Ra for small Rayleigh number Ra>10~6.For large Rayleigh number Ra>10~8,the flow rate is proportional to 3-th root of Ra,but the heat flux is proportional to 5-th root of Ra.

该文研究了由水平温度梯度所导致的水平自然热对流,以Pr=10的流体为例,数值模拟了在高度和宽度比为1∶10的狭长矩形腔内的流动现象。随着Ra数增加,水平自然对流的速度加快,在两侧边界附近形成强烈的下沉流和明显的速度边界层。通过对Ra数从104到109的区间内的计算结果,分段拟合出了流量、最大热通量密度和热通量随Ra数的变化规律。在低Ra数下,流量和热通量都与Ra数成线性关系;在高Ra数下,流量与Ra数的1/3幂成正比;而热通量与Ra数的1/5幂成正比。

 
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