Aerothermal Performance Measurements and Analysis of a Two-Dimensional High Turning Rotor Blade

Author:

Arts T.1,Duboue J.-M.2,Rollin G.2

Affiliation:

1. Von Karman Institute for Fluid Dynamics, Rhode St. Gene`se, Belgium

2. SNECMA, Centre de Villaroche, France

Abstract

The purpose of this contribution is to report on the aerothermal performance measurements and calculations carried out around a high-pressure gas turbine rotor blade profile mounted in a two-dimensional linear cascade arrangement. The measurements were performed in the CT-2 facility of the von Karman Institute, allowing a correct simulation of the operating conditions encountered in modern aero-engines. Independent variations of exit Mach (0.8−1.3) and Reynolds numbers (5×105–2×106), free-stream turbulence (1–6 percent) and incidence angle (−14–+11 deg) provided the definition of a detailed data base of test results. The measured quantities were the blade velocity and convective heat transfer coefficient distributions. The first objective of the paper is to open and analyze this data base, which is one of those used at SNECMA for validation purposes. The paper shows the degree of maturity and reliability SNECMA-ONERA Navier–Stokes solvers have now reached for daily use in turbine airfoil design and analysis.

Publisher

ASME International

Subject

Mechanical Engineering

Reference23 articles.

1. Abu-Ghannam B. J. , and ShawR., 1980, “Natural transition of boundary layers—The effect of turbulence, pressure gradient, and flow history,” J. Mechanical Engineering Science, Vol. 22, No. 5, pp. 213–228.

2. Arts, T., Lambert de Rouvroit, M., and Sieverding, C. H., 1989, “Contribution to the workshop on two-dimensional inviscid and viscous turbomachinery flow calculation,” Numerical Methods for Flows in Turbomachinery, VKI Lecture Series 1989-06.

3. Arts, T., Lambert de Rouvroit, M., and Rutherford, A. W., 1990, “Aero-thermal investigation of a highly loaded transonic linear turbine guide vane cascade,” VKI Technical Note 174.

4. Arts, T., 1994, “Test case No 2: highly loaded transonic and film cooled linear turbine guide vane cascade LS94,” Numerical Methods for Flow Calculations in Turbomachines, VKI Lecture Series 1994-06.

5. Billonnet, G., Fourmaux, A., Huard, J., and Occhionigro, A., 1995, “Utilisation de calculs 2.5D et 3D d’ e´coulements instationnaires pour le choix de l’instrumentation d’un banc d’essai de turbine,” 85th PEP-AGARD Loss and Unsteady Flows in Turbomachines, Derby, UK.

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