沿程水头损失的英文

• friction loss of head
• frictional head loss

• "沿"英文翻译    water's edge; bank
• "程"英文翻译    rule; regulation
• "水头"英文翻译    waterhead; head; flood peak
• "损失"英文翻译    lose
• "水头损失" 英文翻译 :    loss in level; loss of head; loss of water head; water head loss
• "出口水头损失" 英文翻译 :    exit head loss; exit loss; outlet head loss
• "管道水头损失" 英文翻译 :    pipe line loss; pipe-line loss
• "管线水头损失" 英文翻译 :    head loss of pipeline
• "过滤水头损失" 英文翻译 :    water head loss by filtration
• "合流水头损失" 英文翻译 :    combined piping loss
• "进口水头损失" 英文翻译 :    entrance loss
• "井流水头损失" 英文翻译 :    well loss
• "局部水头损失" 英文翻译 :    local head loss
• "开关水头损失" 英文翻译 :    form loss of head
• "摩擦水头损失" 英文翻译 :    friction head loss; frictional head loss; head loss due to friction
• "摩阻水头损失" 英文翻译 :    frictional head loss
• "弯段水头损失" 英文翻译 :    bend loss
• "弯管水头损失" 英文翻译 :    head loss in bend; knee head loss; knee loss
• "弯头水头损失" 英文翻译 :    head loss in bend
• "最小水头损失" 英文翻译 :    minimum head loss
• "河槽摩擦水头损失" 英文翻译 :    channel friction head loss
• "扩大段水头损失" 英文翻译 :    head loss due to enlargement
• "水头损失量测计" 英文翻译 :    loss of head gage
• "吸水管水头损失" 英文翻译 :    suction pipe loss
• "阻障产生的水头损失" 英文翻译 :    loss of head due to obstructions

• A new method for studying friction factor of head loss
  沿程水头损失系数研究的一种新方法
• Based on the principle of hydraulics , the general equation for head loss and the formula for calculation of pressure head along the flexible hoses were worked out , and the method for determination of the maximum and minimum heads and their positions was given
  摘要根据水力学原理建立了软管沿程水头损失的一般方程，得出了软管沿程压力水头的计算公式，给出了确定最大和最小压力水头位置及大小的方法，从计算结果与试验实测结果的对比看，具有一定的合理性。
• ( 5 ) it was more precise for using darcy - weisbach formula to calculate the hydraulic pressure slope curve in the lateral line , but too complexity . although i - pm wu formula is simple , the estimated results were not agreement with the measured data . a coefficient including irrigation uniformity was presented to modify i - pal wu formula , and the results were agreement after using the coefficient
  （ 4 ）利用达西?韦斯巴赫公式计算微孔毛管的沿程水头损失具有较高的精度，但计算复杂，吴义伯公式计算虽较简单，但在灌水均匀度较差时误差较大，为此对吴义伯公式进行了修正，提出了修正系数的计算经验公式，取得了良好的结果，为简易地下滴灌工程设计中水力计算建立了简化公式。
• Corresponding to the correct water hammer mathematic model ( 3 ) , the character difference equation is by comparing the new mathematic model with the old mathematic model , the last calculative part of paper argues the falseness of the current water hammer mathematic model , makes use of the improved character line method to analyze the correct mathematic model ( 3 ) , studies all kinds of facts " impact on water hammer pressure value and water hammer phenomenon attenuation , points out that , in the long pipeline system , the subarea calculation of head loss along with flow rather influences the calculative results of water hammer pressure , advices to take the subarea calculation of head loss along with flow into account in the water hammer calculation of the long pipeline system
  对应于正确的水击数学模型( 3 )的特征差分方程形式如下c ，弓+吼川一c ，唱一几弓扮几rv另卜川= o几代+吼川一几唱一吼嵘{一c :脚丸}唱} ? “本论文在最后的计算部分，通过对新老数学模型的数值计算比较，进一步论证了当前水击数学模型的不正确性。并且应用改善了的特征线法对正确的数学模型( 3 )进行了计算分析，研究了各种因素对水击压强值和水击现象衰减的影响，指出在长管道系统中，沿程水头损失的分区计算对水击压强的计算结果影响较大，建议在长管道系统的水击计算中应按分区进行沿程水头损失的计算。

• 沿程水头损失的法语：perte par frottement