Prediction of heat transfer characteristics of discrete hole film cooling - one row of injection into a turbulent boundary layer

D. K. Tafti, Savas Yavuzkurt

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

A two-dimensional (2-D) injection model is developed for the discrete hole injection process. The model is incorporated in a 2-D boundary layer code using the low Reynolds number version of the k-ε model of turbulence. Predictions of spanwise averaged effectiveness and heat transfer coefficients (hf) are made. The present paper concerns itself with one row of injection into a turbulent boundary layer. The entrainment fraction is correlated to injection parameters and the p/d ratio. Predictions of velocity and temperature profiles are in good agreement with experimental data for one row of injection into a turbulent boundary layer.

Original languageEnglish (US)
Pages (from-to)45-52
Number of pages8
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume103
StatePublished - Dec 1 1988
EventHeat Transfer in Gas Turbine Engines and Three-Dimensional Flows - Chicago, IL, USA
Duration: Nov 27 1988Dec 2 1988

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Boundary layers
Heat transfer
Cooling
Heat transfer coefficients
Reynolds number
Turbulence
Temperature

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

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abstract = "A two-dimensional (2-D) injection model is developed for the discrete hole injection process. The model is incorporated in a 2-D boundary layer code using the low Reynolds number version of the k-ε model of turbulence. Predictions of spanwise averaged effectiveness and heat transfer coefficients (hf) are made. The present paper concerns itself with one row of injection into a turbulent boundary layer. The entrainment fraction is correlated to injection parameters and the p/d ratio. Predictions of velocity and temperature profiles are in good agreement with experimental data for one row of injection into a turbulent boundary layer.",
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N2 - A two-dimensional (2-D) injection model is developed for the discrete hole injection process. The model is incorporated in a 2-D boundary layer code using the low Reynolds number version of the k-ε model of turbulence. Predictions of spanwise averaged effectiveness and heat transfer coefficients (hf) are made. The present paper concerns itself with one row of injection into a turbulent boundary layer. The entrainment fraction is correlated to injection parameters and the p/d ratio. Predictions of velocity and temperature profiles are in good agreement with experimental data for one row of injection into a turbulent boundary layer.

AB - A two-dimensional (2-D) injection model is developed for the discrete hole injection process. The model is incorporated in a 2-D boundary layer code using the low Reynolds number version of the k-ε model of turbulence. Predictions of spanwise averaged effectiveness and heat transfer coefficients (hf) are made. The present paper concerns itself with one row of injection into a turbulent boundary layer. The entrainment fraction is correlated to injection parameters and the p/d ratio. Predictions of velocity and temperature profiles are in good agreement with experimental data for one row of injection into a turbulent boundary layer.

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