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
   hydraulic smooth region 的翻译结果: 查询用时:0.006秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

hydraulic smooth region
相关语句
  水力光滑区
     The investigation shows that the transfer of flow pattern within boundry layer on the surfaces of impeller and volute from hydraulic rough region to hydraulic smooth region is the origin of that phenomenon.
     研究表明 ,产生扬程突升现象的根源是叶轮和蜗壳表面边界层流态由水力粗糙区向水力光滑区发生了迁移 .
短句来源
  “hydraulic smooth region”译为未确定词的双语例句
     Based on theoretical analysis, a unified formula for the velocity distribution is suggested to fulfill all the wall conditions, which include the hydraulic smooth region, transitional region and rough region. With Thatchell's algebraic stress model and the formula suggested in this paper, the 3-D flow in the compound channel with lateral change in bed roughness is simulated.
     根据理论分析建立了适合于描述水力光滑、水力过渡和水力粗糙这三种壁面条件下时均流速沿垂线分布的统一公式,并利用该流速分布公式,采用Thatchell代数应力模型,对复式明渠粗糙度沿横向存在变化的流动进行了三维模拟.
短句来源
  相似匹配句对
     Smooth Hydraulic Blasting Technique in Construction of Railway Tunnel
     铁路隧道水压光面爆破施工技术
短句来源
     On Hydraulic Shock
     液压冲击问题
短句来源
     Smooth Driving Design for Hydraulic Motor at a Superlow Speed
     液压马达超低速平稳驱动控制方案的设计
短句来源
     Hydraulic Civilization
     水利文明
短句来源
     smooth pellets;
     空心、光滑的菌球。
短句来源
查询“hydraulic smooth region”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
没有找到相关例句


The paper deals mainly with a projeet hydraulic model testing on an open channel flow with smooth walls . The findings have indicated that the bot- ton slope of a channel does not have appreciable influence on the friction of flow in the hydraulic smooth region, as it does on the friction of flow in the hydrau- lic rough region. It has also shown that the relationship can be expressed in terms of an exponential function between the Chezy's resistance factor...

The paper deals mainly with a projeet hydraulic model testing on an open channel flow with smooth walls . The findings have indicated that the bot- ton slope of a channel does not have appreciable influence on the friction of flow in the hydraulic smooth region, as it does on the friction of flow in the hydrau- lic rough region. It has also shown that the relationship can be expressed in terms of an exponential function between the Chezy's resistance factor C, and the hyd- raulic radius R, as well as the Manning's Coeffieient of Roughness n for an open channel flow in hydraulic smooth region. A semi -empirical formula has been given too.

本文结合工程水力模型对两种底坡的有机玻璃明渠进行试验研究.试验表明,在水力 光滑区沿程阻力系数λ与雷诺数Re可表为指数函数关系,明渠底坡对阻力系数λ的变化规律没 有影响,而在过渡粗糙区明渠底坡对其则有明显影响.其次根据实测资料数值分析表明,在水力 光滑区谢才系数C与水力半径R及糙率n的关系,仍可表成C= Ry的指数函效形式,文中提出谢 才系数C的经验计算公式.

The hypothesis of fluctuating shear stress in reference[1]is used to solve the problem of the turbulent boundary-layer along a flat plate.The formulas and tables for the calculation of the bound- ary-layer thickness,displacement thickness,momentum thickness and energy thickness are given.The coefficient of skin friction drag C_1is obtained,which agrees with the experimental results either in the hydraulic smooth region,or in the hydraulic rough region.The present method of computation for the...

The hypothesis of fluctuating shear stress in reference[1]is used to solve the problem of the turbulent boundary-layer along a flat plate.The formulas and tables for the calculation of the bound- ary-layer thickness,displacement thickness,momentum thickness and energy thickness are given.The coefficient of skin friction drag C_1is obtained,which agrees with the experimental results either in the hydraulic smooth region,or in the hydraulic rough region.The present method of computation for the transition region is a new method.

本文是笔者已发表的“管中紊流新探索”一文的继续,笔者用该文提出的关于脉动切应力的假设,求解平板紊流边界层问题,给出了计算边界层厚度、位移厚度、动量厚度和能量厚度的公式和表格,所得的绕平板的阻力系数,无论在紊流水力光滑区,或是在紊流水力粗糙区,全与现有实验成果非常符合,对从水力光滑到水力粗糙的过渡区,本文提供的算法是首创。

Based on a new incomplete simiarity assumption of the simiarity theory and the structure of the asymmetric passing flows, a generalized power type velocity distribution formula is proposed for hydraulic smooth region, hydraulic transition rough region and hydraulic rough region wallturbulence. Corresponding to the generalized velocity distribution formula, a skin friction law is derived. Both the velocity distribution...

Based on a new incomplete simiarity assumption of the simiarity theory and the structure of the asymmetric passing flows, a generalized power type velocity distribution formula is proposed for hydraulic smooth region, hydraulic transition rough region and hydraulic rough region wallturbulence. Corresponding to the generalized velocity distribution formula, a skin friction law is derived. Both the velocity distribution formula and the skin friction law are compared with the classic Nikuradre experimental data.

基于相似理论中的不完全自相似假设,研究了固壁紊流流速分布的结构型式。通过对壁面紊流结构的分析,进而给出了固壁紊流包括光滑区、过渡区和粗糙区在内的统一的指数型流速分布公式和阻力规律,并用尼库拉兹的实验资料作了验证。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关hydraulic smooth region的内容
在知识搜索中查有关hydraulic smooth region的内容
在数字搜索中查有关hydraulic smooth region的内容
在概念知识元中查有关hydraulic smooth region的内容
在学术趋势中查有关hydraulic smooth region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