Jグルーブを用いた斜流ポンプの不安定性能の抑制法の開発

• 黒川 淳一

• Sankar L. SAHA

• 松井 純

• 今村 博

書誌事項

タイトル別名

• An Innovative Device to Suppress Performance-Curve Instability in a Mixed Flow Pump by Use of J-Groove
• Jグルーブ オ モチイタ シャリュウ ポンプ ノ フアンテイ セイノウ ノ ヨクセイホウ ノ カイハツ

抄録

In order to control and suppress a performance-curve instability characterized by a local dent in head-capacity curve or an uprising head-capacity curve in a mixed flow pump, an innovative and very simple device of using shallow grooves mounted on a casing wall is proposed. The optimum dimension of the groove and its location for the instability supression are determined experimentally. The results show that the shallow grooves located with proper dimension can sufficiently suppress the instability for all discharge ranges. The remarkable effect of shallow grooves is to decrease both the swirl strength and the size of the reverse flow region at an impeller inlet by use of angular momentum absorption through the mixing between the main flow and the groove flow, resulting in the recovery of impeller theoretical head.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 66 (642), 460-467, 2000

  一般社団法人 日本機械学会

キーワード

• J-Groove

詳細情報

• CRID: 1390282681159341312
• NII論文ID: 130004080366
• NII論文ID: 10007652697
• NII論文ID: 110002392808
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.66.460
• ISSN: 18848346
• ISSN: 03875016
• ISSN: http://id.crossref.org/issn/03875016
• NDL書誌ID: 5287332
• Web Site: http://hdl.handle.net/10131/3777
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5287332
• Web Site: https://www.jstage.jst.go.jp/article/kikaib1979/66/642/66_642_460/_pdf
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可