助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   自然对流换 的翻译结果: 查询用时:0.458秒
图标索引 在分类学科中查询
所有学科
动力工程
航空航天科学与工程
更多类别查询

图标索引 历史查询
 

自然对流换
相关语句
  natural convection heat transfer
     Experimental data for natural convection heat transfer from a horizontal cylinder in the Rayleigh number range higher than 2 × 107 have been obtained in this paper.
     本文充实了Ra数高于2×107范围内横圆柱外自然对流换热的实验数据。
短句来源
     EXPERIMENTAL STUDY OF HIGH RAVLEIGH NUMBER NATURAL CONVECTION HEAT TRANSFER FROM A HORIZONTAL CYLINDER
     高Ra数横圆柱外自然对流换热的实验研究
短句来源
     This paper offers the measured distribution of the surface temperature of horizontal finned tube along the circumference in natural convection heat transfer.
     实测了水平肋片管在自然对流换热条件下圆管表面温度在圆周方向上的分布。
短句来源
     Fourth-Order Compact Difference for Solving Navier-Stokes Equations and Numerical Simulation of Natural Convection Heat Transfer
     Navier—Stokes方程组的四阶紧致差分方法与自然对流换热问题的数值模拟
短句来源
     The Experimental Study of Natural Convection Heat Transfer in Rectangular Enclosure at Arbitary Inclined Angles
     任意倾斜角度下平行平板封闭夹层自然对流换热实验研究
短句来源
更多       
  “自然对流换”译为未确定词的双语例句
     A EXPERIMENTAL STUDY OF NATURAL CONVECTIVE HEAT TRANSFER OF AIR IN VERTICAL ANNULAR ON THE HIGH RAYLEIGH NUMBER CONDITION
     高Rayleigh数条件下竖圆环夹层内自然对流换热的实验研究
短句来源
     This method was applied for the simulation of natural convection from a cylinder in an infinite space in Ra range of 10-2 to 107 with the high resolution scheme and primitive variable method.
     并将这种数值方法应用到大空间内单根圆柱的自然对流换热的数值模拟中,在10~2
短句来源
     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
     The effect of the Ra, distance between tubes to the average heat transfer coefficient and the total heat transfer coefficient of the tube arrays were studied wildly.
     在比较宽广的参数范围内详细地分析了改变Ra数、管间距以及管子与限制体之间的距离对管排中各个管的平均对流换热系数和管排的总自然对流换热系数的影响。
短句来源
     An Experimental Study of Natural Convective Heat Transfer in the Inclined Annulus
     倾斜环形夹层自然对流换热实验研究
短句来源
更多       
  相似匹配句对
     The Natural Convection Heat Transfer of Small Objects
     小尺寸物体自然对流
短句来源
     Natural Convection Boiling Heat Transfer in Enhanced Heat Transfer Tubes
     强化传热管内的自然对流沸腾
短句来源
     EXPERIMENT ON NATURAL CONVECTIVE HEAT TRANSFER FROM TWO VERTICAL PARALLEL PLATES WITH CLOSED EDGES
     抽吸式自然对流热的实验研究
短句来源
     NUMERICAL STUDY OF TURBULENT NATURAL CONVECTION HEAT TRANSFER IN ENCLOSURES
     封闭空间紊流自然对流热的数值研究
短句来源
     Prediction on Natural Heat Transfer from an Array ofLine Heat Sources
     单列线热源自然对流热预测
短句来源
查询“自然对流换”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  natural convection heat transfer
Natural convection heat transfer of water in a horizontal circular gap
      
An experimental study on the natural convection heat transfer on a horizontal downward facing heated surface in a water gap was carried out under atmospheric pressure conditions.
      
The results show that the buoyancy force acts as a resistance force for natural convection heat transfer on a downward facing horizontal heated surface in a confined space.
      
For the estimation of the natural convection heat transfer under the present conditions, empirical correlations in which Nusselt number is expressed as a function of the Rayleigh number, or both Rayleigh and Prandtl numbers, may be used.
      
An experimental and numerical study of natural convection heat transfer in horizontal annuli between eccentric cylinders
      
更多          


This paper describes an experimental research of natural convective heat transfer in annular cylinders.In the range of experiment,the measured results indicate that diameter ratio is the larger,Nu is smaller when Ra* is comstant.The effects of the tilt angle on convective heat transfer are little.The criterion equations of various angle and unified approximate calculation equation are obtained.It is the first publications to recommend the optimal spacing of inclined annular air layers.These conclusions...

This paper describes an experimental research of natural convective heat transfer in annular cylinders.In the range of experiment,the measured results indicate that diameter ratio is the larger,Nu is smaller when Ra* is comstant.The effects of the tilt angle on convective heat transfer are little.The criterion equations of various angle and unified approximate calculation equation are obtained.It is the first publications to recommend the optimal spacing of inclined annular air layers.These conclusions provide the theoretic basis for engineering designs.

通过实验对环形封闭空间自然对流换热问题进行了研究.由实验结果的分析指出:在本实验范围内,当R*a相同时,直径比K越大,Nu越小;而角度对Nu数则几乎没有影响.同时拟合出各角度下统一近似准则方程式.首次提出环形夹层自然对流换热量最小的最佳间距,可作为工程设计的理论依据.

A new boundary condition in the pseudo-boundary is developed to simulate numerically the laminar naturai convection heat transfer around a horizontal compound tube with external longitudinal fins. It can be implemented easily and more efficiently to save CPU time. Numerical tests indicate that the relative errors of the average Nusselt number of the laminar naturai convection around a horizontal isothermal cylinder using this boundary condition is less than 0.5% compared with the bench mark solutions available...

A new boundary condition in the pseudo-boundary is developed to simulate numerically the laminar naturai convection heat transfer around a horizontal compound tube with external longitudinal fins. It can be implemented easily and more efficiently to save CPU time. Numerical tests indicate that the relative errors of the average Nusselt number of the laminar naturai convection around a horizontal isothermal cylinder using this boundary condition is less than 0.5% compared with the bench mark solutions available in the literature with less computational effort. The heat fluxes of the laminar naturai convection around a horizontal compound tube with different height of fins and different number of fins are calculated using the conjugated computation method with primitive variables in cylindrical coordinates. Numerical solutions show that for the tube with 6 fins the heat transfer rate reaches its maximum when the relative fins height h/r0 = 4.0, while for the tube with 8 fins the maximum heat transfer rate is obtained at h/ro = 3.64. Numerical results also revealed that the position of the fin has great effect on the heat transfer rate. For example, for the tube with 8 fins, the fin should not be positioned at the vertical line.

为了方便而有效地模拟具有纵向外肋片的水平复合管外表面大空间自然对流换热的数值计算时计算区域外边界条件,本文提出一种新的边界条件处理方式。数值实验表明,用该条件计算的具有恒壁温的水平圆柱外表面自然对流换热数值解与文献中的基准解相比,平均Nu数的误差在0.5%以下。本文在极坐标系下,采用固体区与流体区耦合计算原始变量法,模拟计算了具有纵向外肋片的水平复合管外表面在不同肋片高度和肋片数下的自然对流换热量。数值计算表明,管外布置6个对称的肋片时,在肋片相对高度h/r04.0时,对换热最为有利,对应的肋片管平均肋效率为87.92%;而在相同肋片高度下,布置8个对称的肋片时,换热量最大。

 
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关自然对流换的内容
在知识搜索中查有关自然对流换的内容
在数字搜索中查有关自然对流换的内容
在概念知识元中查有关自然对流换的内容
在学术趋势中查有关自然对流换的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社