三角タブを用いたガスタービン翼の膜冷却効率の向上  [in Japanese] Improvement of a Cooling Effectiveness by the Use of a Delta-Tab  [in Japanese]

Abstract

This paper describes the effects of a delta-tab on the film cooling effectiveness. The wall-jet is injected streamwisely and laterally into a two-dimensional turbulent boundary layer. A small delta-tab is installed at the edge of the injection hole exit. The mass flux ratio of the wall-jet to the main stream is set at 0.5,0.85 and 1.2 in streamwise injection, and at 0.5 and 1.2 in lateral injection. An encapsulated temperature-sensitive liquid crystal is used to measure the temperature distribution on the surface. Upstream-tab in streamwise injection prevents the primary stream from convoluting in the downstream region. The total cooling effectiveness in streamwise injection with a upstream-tab is larger than that in the spanwise injection at downstream.

Journal

Journal of the Gas Turbine Society of Japan   [List of Volumes]

Journal of the Gas Turbine Society of Japan 24(95), 66-73, 1996-12-10  [Table of Contents]

Gas Turbine Society of Japan

References:  21

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Codes

  • NII Article ID (NAID) :
    110002766001
  • NII NACSIS-CAT ID (NCID) :
    AN00186926
  • Text Lang :
    JPN
  • Article Type :
    ART
  • ISSN :
    03874168
  • NDL Article ID :
    4096185
  • NDL Source Classification :
    ZN14(科学技術--機械工学・工業--熱機関)
  • NDL Call No. :
    Z16-1052
  • Databases :
    CJP  NDL  NII-ELS 

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