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Volume 31, Issue 1
Displaying 1-11 of 11 articles from this issue
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[in Japanese]2003 Volume 31 Issue 1 Pages 2-3
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 4-8
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 9-12
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 13-18
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 19-21
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 22-26
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 27-30
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 31-35
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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[in Japanese]2003 Volume 31 Issue 1 Pages 36-42
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
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Young-Do CHOI, Junichi KUROKAWA, Jun MATSUI, Hiroshi IMAMURA2003 Volume 31 Issue 1 Pages 43-52
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
JOURNAL FREE ACCESSIn the range of very low specific-speed (ns≤100 [m, m3/min, rpm]), performance of a centrifugal pump is much different from that of a normal ns pump. In order to obtain a basic knowledge of pump performance, the internal flow in a semi-open impeller is measured by PIV method and calculated by a commercial CFD code. The results show that strong reverse flow at an impeller outlet is formed and reduces tangential velocity of the absolute flow at an impeller outlet. In the case of β2=90° impeller, a large vortex is formed in the impeller passage at partial flow rate and causes a performance instability. The reverse flow at an impeller outlet brings low angular momentum into an impeller and causes a sharp drop of tangential velocity just before the impeller outlet, which results in a increase of slip factor in the case of β2=30° impeller.View full abstractDownload PDF (6764K) -
[in Japanese]2003 Volume 31 Issue 1 Pages 53-58
Published: January 10, 2003
Released on J-STAGE: July 11, 2011
JOURNAL FREE ACCESSDownload PDF (4644K)
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