Influence of the rib pitch on flow resistance in a variable cross-section channel with transverse ribs

Research output: Contribution to journalArticlepeer-review

Abstract

The turn-over channel of turbine blade is an important part of the internal cooling structure of turbine blade. Its flow performance is important for the design of the cooling structure of turbine blade. A real turn-over channel of turbine blade is simplified as an object to be studied about flow performance in a 180° turn-over channel with 90° parallel different height ribs. The efficient pressure distribution in the inner part of the turn-over channel along the channel, including 90° parallel different height ribs is shown. Some efficient pressure increases along the channel because of the irregular changing of channel shape. Correlation formulas of the coefficient of efficient pressure are obtained. Resistance coefficient increases with the increase of the rib height to diameter ratio.

Original languageEnglish
Pages (from-to)356-360
Number of pages5
JournalHangkong Dongli Xuebao/Journal of Aerospace Power
Volume19
Issue number3
StatePublished - Jun 2004

Keywords

  • Aerospace propulsion system
  • Efficient pressure
  • Height to diameter ratio
  • Rib height
  • Turn-over channel

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