Effect of the installation of a cutting pin in front of a cylindrical rod on the endwall flow and heat transfer distribution

Seok Min Choi, Su Won Kim, Hee Seung Park, Hyung Hee Cho

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of the installation of a cutting pin in front of a cylindrical rod was analyzed. Different cutting pin heights were compared through numerical simulations. The numerical simulations were conducted using ANSYS CFX (Ver. 17.2). The cutting pin heights were hp/H = 0.25, 0.5, and 0.75. The results revealed that the cutting pin with hp/H = 0.25 increased the strength of the horseshoe vortex, which occurred at the leading edge of the cylindrical rod. Therefore, the heat transfer distributions between the cutting pin and the cylindrical rod increased. Moreover, the area-averaged heat transfer distributions increased to up to a factor of 22 % when the cutting pin was installed. Therefore, choosing an appropriate height for the cutting pin will be helpful when it is installed in front of the pin-fin array of the internal passage of a gas turbine blade.

Original languageEnglish
Pages (from-to)695-701
Number of pages7
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume44
Issue number11
DOIs
Publication statusPublished - 2020

Bibliographical note

Publisher Copyright:
© 2020 The Korean Society of Mechanical Engineers

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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