亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

雙葉片離心泵滑移系數(shù)修正實(shí)驗(yàn)
作者:
作者單位:

作者簡(jiǎn)介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

國(guó)家自然科學(xué)基金資助項(xiàng)目（51079062、51179075、51109095、51209105）;江蘇省科技支撐（工業(yè)）項(xiàng)目（BE2012129）;江蘇大學(xué)高級(jí)專業(yè)人才科研啟動(dòng)基金資助項(xiàng)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(jì)
    • |
  • 參考文獻(xiàn)
    • |
  • 相似文獻(xiàn)
    • |
  • 引證文獻(xiàn)
    • |
  • 資源附件
    • |
  • 文章評(píng)論
    摘要:

    采用PIV技術(shù)對(duì)一雙葉片離心泵葉輪出口處的滑移速度進(jìn)行了實(shí)驗(yàn)研究，得到了7個(gè)工況、6個(gè)相位下的滑移系數(shù)，發(fā)現(xiàn)隨著流量的增大6個(gè)相位下的平均滑移系數(shù)呈遞減的趨勢(shì)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(jì)算了雙葉片離心泵的滑移系數(shù)，并與各個(gè)工況下的實(shí)驗(yàn)值進(jìn)行了比較。根據(jù)實(shí)驗(yàn)值對(duì)計(jì)算誤差最小的威斯奈爾公式進(jìn)行了修正，并重新設(shè)計(jì)一個(gè)雙葉片葉輪進(jìn)行了驗(yàn)證。研究結(jié)果表明7個(gè)工況下修正后的滑移系數(shù)計(jì)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(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
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(shí)驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),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(fù)制
分享
文章指標(biāo)
  • 點(diǎn)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: