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
   管道入口 的翻译结果: 查询用时:0.505秒
图标索引 在分类学科中查询
所有学科
工业通用技术及设备
更多类别查询

图标索引 历史查询
 

管道入口
相关语句
  “管道入口”译为未确定词的双语例句
    An Experimental Analysis of the Vortex Clipping on Delivery Pipe Inlet
    输水(油)管道入口旋涡切割的实验分析
短句来源
    Numerical analysis of 3-D sound propagation in circular ducts with circumferential modes at inlet
    软壁管道入口具有周向模声源的三维声传播数值分析
短句来源
    Effectiveness of Flow Straitening at the Inlet of Water/Oil Supply Facility
    输水(油)管道入口整流效应的试验研究
短句来源
    An investigation of the characteristics of pressure, differential pressure and gas liquid flowrate in slug flow during pigging operation was carried out in an outdoor test rig.
    以空气、水为试验介质 ,在多种气液流量下测量了管道中不同位置处的压力、压差 ,并记录了清管通球过程中管道入口的流量变化 .
短句来源
    The results indicate that if pigging velocity is given,the inlet pressure and flow rate obtained are variable and difficult to control in production.
    计算结果表明:在输气管道进行清管稳态计算时,如果设定管 道的通球速度,计算出的管道入口压力和流量参数是时时变化的,这在生产实际中较难控制。
短句来源
更多       
查询“管道入口”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。
  duct inlet
The agreement of the experimental and numerical results is quite good except at the duct inlet.
      
Rumble mainly occurs at high fuel-air ratios and at flight Mach numbers and altitudes where low duct inlet air temperatures and pressures exist.
      


In this paper a procedure is developed for the design of contraction ducts, using solutions based on separation of variables for the stream function equations of incompressible axisymmetrie potential flow.A new type of axial velocity distribution function is suggested. Under a wide range of contraction ratios, this function can be used to greatly reduce the length of ducts and provide a high quality of flow, such as small adverse pressure gradient near the wall at entrance, uniformity and parallelism of the...

In this paper a procedure is developed for the design of contraction ducts, using solutions based on separation of variables for the stream function equations of incompressible axisymmetrie potential flow.A new type of axial velocity distribution function is suggested. Under a wide range of contraction ratios, this function can be used to greatly reduce the length of ducts and provide a high quality of flow, such as small adverse pressure gradient near the wall at entrance, uniformity and parallelism of the flow at exit and freedom from separation in the whole flow field, etc.By using this method, a shallow octagonal form contraction duct of a wind tunnel with contraction ratio 13.025 was designed, built and tested. Theoretical calculations are compared with test results, they show good agreement. In the present case the adverse pressure gradient is so small that no perceptible region of separation is observed. The velocity distribution at entrance, exit or on the wall is perfectly satisfactory. The maximum non-uniformity in the exit velocity distribution is less than 0.4%.

本文根据不可压轴对称(及平面)势流场内存在可分离变量形式的流函数解,提出了一种新的轴向速度分布函数,在很宽的收缩比条件下有效地缩短了管道长度,并保证了管道入口附近管壁上逆压梯度很小,出口截面上的气流均匀性与平行性较优,在流场内气流不发生分离.应用本文方法计算的曲线建造了有扁八角形收缩段的模型风洞,收缩比为13.025.理论计算与实验结果符合较好.实验结果表明:在这种情况下逆压梯度很小,未观察到可见的分离区,在入口、出口及壁面上速度分布满意,出口处最大速度不均匀度小于0.4%.

Numerical analysis of three-dimensional sound propagation in soft-soft or soft-hard circular ducts with circumferential and axial modes of sound sources at inlet has been carried out. In this paper, the numerical method and examples are presented, and the effect of circumferential and axial modes on numerical results is also discussed.

本文实现了管道入口具有周向、径向模声压分布的软-软壁、软-硬壁圆管内三维声传播数值计算,提供了数值计算方法及算例,并讨论了周向、径向模对计算结果的影响。

A new calculating method for compressible flow is adopted to size the pipe and flare mani folds of the provide a safe,economical and optimal designing method for sizing the pipe of flare system.

本文采用一种新的计算可压缩流体的方法用于火炬系统的配管尺寸设计,在管网布局确定后,可由已知的出口压力 P_2反算管道入口压力 P_1,进而确定各段管线的管径,同时还可得到各段管线出口处的马赫数、摩擦因子等参数.通过限制马赫数及将计算的入口压力与装置允许最大背压相比较,使设计参数进一步优化,同时通过增加计算的循环次数,可方便地处理带有支管的复杂管网系统。整个计算过程均编制了FORTRAN 计算程序,为火炬系统的配管问题提供了一个既安全又经济的最优化设计方案,以使化工厂或炼油厂在这方面的投资减至最少.

 
<< 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管道入口的内容
在知识搜索中查有关管道入口的内容
在数字搜索中查有关管道入口的内容
在概念知识元中查有关管道入口的内容
在学术趋势中查有关管道入口的内容
 
 

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