TY - JOUR
T1 - Full-Coverage Film-Cooling
T2 - A One-Equation Model of Turbulence for the Calculation of the Full-Coverage and the Recovery-Region Hydrodynamics
AU - Yavuzkurt, S.
PY - 1987/6
Y1 - 1987/6
N2 - A one-equation model (mixing-length and turbulent kinetic energy) of turbulence is used for the calculation of the full-coverage and recovery region hydrodynamics over a full-coverage film-cooled surface. The model requires a detailed description of the form and dynamics of the complex mixing-length profile encountered in this type of flow structure. This is achieved through extensive use of experimental input and physical interpretation of the data by combining equations for simple flow structures such as two-dimensional turbulent flat plate boundary layers and jets-in-cross flow. The one-equation model is used in a two-dimensional finite difference boundary layer code giving successful predictions of the spanwise averaged mean velocity and turbulent kinetic energy profiles between injection rows in the full coverage region and also in the recovery region for two blowing ratios (Ujet/U∞= 0.4, 0.9).
AB - A one-equation model (mixing-length and turbulent kinetic energy) of turbulence is used for the calculation of the full-coverage and recovery region hydrodynamics over a full-coverage film-cooled surface. The model requires a detailed description of the form and dynamics of the complex mixing-length profile encountered in this type of flow structure. This is achieved through extensive use of experimental input and physical interpretation of the data by combining equations for simple flow structures such as two-dimensional turbulent flat plate boundary layers and jets-in-cross flow. The one-equation model is used in a two-dimensional finite difference boundary layer code giving successful predictions of the spanwise averaged mean velocity and turbulent kinetic energy profiles between injection rows in the full coverage region and also in the recovery region for two blowing ratios (Ujet/U∞= 0.4, 0.9).
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U2 - 10.1515/TJJ.1987.4.3-4.239
DO - 10.1515/TJJ.1987.4.3-4.239
M3 - Article
AN - SCOPUS:84942220888
SN - 0334-0082
VL - 4
SP - 239
EP - 250
JO - International Journal of Turbo and Jet Engines
JF - International Journal of Turbo and Jet Engines
IS - 3-4
ER -