2011
DOI: 10.3795/ksme-b.2011.35.9.903
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Effects of Compound Angle, Diffuser Angle, and Hole Pitch on Film-cooling Effectiveness

Abstract: A numerical study is carried out to analyze the steady three-dimensional turbulent flow through cylindrical and fan-shaped holes and the film cooling of these holes at low and high blowing ratios. Compressible Reynoldsaveraged Navier-Stokes equations and the energy equation are solved using a finite-volume-based solver, and a shearstress transport model is used as the turbulence closure. The effects of the compound angle, pitch to diameter ratio, and lateral expansion angle of the hole on the film-cooling effe… Show more

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