Transonic film-cooling investigations: Effects of hole shapes and orientations

S. Wittig, A. Schulz, M. Gritsch, K. A. Thole

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Scopus citations

Abstract

The emphasis of the present study is to understand the effects of various flowfield and geometrical parameters in the nearfield region of a scaled-up film-cooling hole on a flat test plate. The effect of these different parameters on adiabatic wall effectivenesses, heat transfer coefficients, discharge coefficients and the near-hole velocity field will be addressed. The geometrical parameters of concern include several angles of inclination and rotation of a cylindrical film-cooling hole and two different hole shapes - A fanshaped hole and a laidback fanshaped hole. The fluid dynamic parameters include both the internal and external Mach number as well as the mainstream-to-coolant ratios of total temperature, velocity, mass flux, and momentum flux. In particular, the interaction of a film-cooling jet being injected into a transonic mainstream will be studied. This paper includes a detailed description of the test rig design as well as the measuring techniques. Firstly, tests revealing the operability of the test rig will be discussed. Finally, an outlook of the comprehensive experimental and numerical program will be given.

Original languageEnglish (US)
Title of host publicationHeat Transfer; Electric Power; Industrial and Cogeneration
PublisherWeb Portal ASME (American Society of Mechanical Engineers)
ISBN (Electronic)9780791878750
DOIs
StatePublished - 1996
EventASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996 - Birmingham, United Kingdom
Duration: Jun 10 1996Jun 13 1996

Publication series

NameASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996
Volume4

Other

OtherASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996
CountryUnited Kingdom
CityBirmingham
Period6/10/966/13/96

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Mechanical Engineering

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    Wittig, S., Schulz, A., Gritsch, M., & Thole, K. A. (1996). Transonic film-cooling investigations: Effects of hole shapes and orientations. In Heat Transfer; Electric Power; Industrial and Cogeneration (ASME 1996 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1996; Vol. 4). Web Portal ASME (American Society of Mechanical Engineers). https://doi.org/10.1115/96-GT-222