External heat transfer predictions in a highly loaded transonic linear turbine guide vane cascade using an upwind biased Navier-Stokes solver
- Graz Univ. of Technology (Austria). Inst. of Thermal Turbomachinery and Machine Dynamics
External heat transfer predictions are performed for two-dimensional turbine blade cascades. The Reynolds-averaged Navier-Stokes equations with algebraic (Arnone and Pacciani, 1998), one-equation (Spalart and Allmaras, 1994), and two-equation (low-Re {kappa}-{epsilon}, Biswas and Fukuyama, 1994) turbulence closures are solved with a fully implicit time-marching finite volume method. Comparisons with measurements (Arts et al., 1990; Arts, 1994) for a highly loaded transonic turbine nozzle guide vane cascade show good agreement in some cases, but also reveal problems with transition prediction and turbulence modeling. Special attention has been focused on the low-Re {kappa}-{epsilon} model concerning the influence of the inlet boundary condition for the {epsilon}-equation and problems in the stagnation point region.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 679294
- Report Number(s):
- CONF-980615-; ISSN 0889-504X; TRN: IM9940%%114
- Journal Information:
- Journal of Turbomachinery, Vol. 121, Issue 3; Conference: American Society of Mechanical Engineers (ASME) turbo expo `98 - land, sea, air, Stockholm (Sweden), 2-5 Jun 1998; Other Information: PBD: Jul 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Turbine vane external heat transfer. Volume 2. Numerical solutions of the Navier-Stokes equations for two- and three-dimensional turbine cascades with heat transfer. Final report
A Navier-Stokes analysis of airfoils in oscillating transonic cascades for the prediction of aerodynamic damping