ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

雙葉片離心泵滑移系數(shù)修正實驗
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學基金資助項目（51079062、51179075、51109095、51209105）;江蘇省科技支撐（工業(yè)）項目（BE2012129）;江蘇大學高級專業(yè)人才科研啟動基金資助項目（12JDG045）


Correction Experiment of Slip Factors in Double-blade Centrifugal Pump
Author:
Affiliation:

Fund Project:

  • 摘要
    • |
  • 圖/表
    • |
  • 訪問統(tǒng)計
    • |
  • 參考文獻
    • |
  • 相似文獻
    • |
  • 引證文獻
    • |
  • 資源附件
    • |
  • 文章評論
    摘要:

    采用PIV技術(shù)對一雙葉片離心泵葉輪出口處的滑移速度進行了實驗研究，得到了7個工況、6個相位下的滑移系數(shù)，發(fā)現(xiàn)隨著流量的增大6個相位下的平均滑移系數(shù)呈遞減的趨勢變化。采用斯托道拉公式、威斯奈爾公式、斯基克欽公式分別計算了雙葉片離心泵的滑移系數(shù)，并與各個工況下的實驗值進行了比較。根據(jù)實驗值對計算誤差最小的威斯奈爾公式進行了修正，并重新設(shè)計一個雙葉片葉輪進行了驗證。研究結(jié)果表明7個工況下修正后的滑移系數(shù)計算誤差均在3.5%以內(nèi)，其最大誤差為3.23%。

    Abstract:

    Slip velocity of impeller outlet for a double-blade centrifugal pump was studied with PIV technology and slip factors of six blade phases at the seven conditions were obtained. It is found that average slip factor at the six blade phases gradually decreased with the increase of flow rate. Flip factors of the double-blade centrifugal pump were calculated with Stodola formula, Weisner formula and Stechkin formula and all the results were compared with experimental values at the seven conditions. Weisner formula, whose calculation errors were the smallest, was corrected on the basis of experimental values. And a double blade impeller was redesigned to verify correct formula. The results showed that the calculation errors of corrected slip factors at the seven conditions were less than 3.5% and the maximum error was 3.23%.

    參考文獻
    相似文獻
    引證文獻
引用本文

王凱,吳賢芳,陳新響,周孝華.雙葉片離心泵滑移系數(shù)修正實驗[J].農(nóng)業(yè)機械學報,2013,44(7):61-66. Wang Kai, Wu Xianfang, Chen Xinxiang, Zhou Xiaohua. Correction Experiment of Slip Factors in Double-blade Centrifugal Pump[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(7):61-66.

復制
相關(guān)視頻

分享
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2013-06-20
  • 出版日期:
文章二維碼