The detailed structure and behavior of discrete cooling jets in a turbine.
Three-dimensional jets are an efficient way of cooling the walls of modern high-pressure turbines. Introduced in the external flow that develops around the turbine blade, they are associated with a set of vortex structures. The purpose of this paper is to underline the respective origin and importance of these structures, with reference to both experimental and numerical results. Steady and unsteady vortices will be analyzed. Recommendations for numerical simulations will be proposed from these observations.
Leboeuf
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Ecole Centrale de Lyon, Laboratory of Fluid Mechanics and Acoustic, UMR CNRS 5509, 36 Avenue Guy de Collongue, 69131 Ecully, France.
Sgarzi
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