Three different designs of a transpiration cooled multilayer plate—plane, convex, and concave—are analyzed numerically by application of a 3D conjugate fluid flow and heat transfer solver. The geometrical setup and the fluid flow conditions are derived from modern gas turbine components. The conjugate analysis of these designs focus on the influence of the surface curvature, the cooling film development on the plate surface, the fluid structure in the cooling channels, and on the cooling efficiency of the plate. Moreover, to predict the effective thermal properties and the permeability of these multilayer plates, a multiscale approach based on the homogenization technique is employed. This method allows the calculation of effective equivalent properties either for each layer or for the multilayer of superalloy, bondcoat, and thermal barrier coating (TBC). Permeabilities of the different designs are presented in detail for the TBC layer. The influence of the plate curvature and the blowing ratio on the effective orthotropic thermal conductivities is finally outlined.
Skip Nav Destination
Article navigation
October 2007
Research Papers
Three-Dimensional Numerical Analysis of Curved Transpiration Cooled Plates and Homogenization of Their Aerothermal Properties
Stephan Rex,
Stephan Rex
ACCESS e.V.
, Intzestrasse 5, D-52072 Aachen, Germany
Search for other works by this author on:
Dieter Bohn,
Dieter Bohn
Institute of Steam and Gas Turbines,
Aachen University of Technology
, D-52056 Aachen, Germany
Search for other works by this author on:
Robert Krewinkel
Robert Krewinkel
Institute of Steam and Gas Turbines,
Aachen University of Technology
, D-52056 Aachen, Germany
Search for other works by this author on:
Gottfried Laschet
Stephan Rex
ACCESS e.V.
, Intzestrasse 5, D-52072 Aachen, Germany
Dieter Bohn
Institute of Steam and Gas Turbines,
Aachen University of Technology
, D-52056 Aachen, Germany
Robert Krewinkel
Institute of Steam and Gas Turbines,
Aachen University of Technology
, D-52056 Aachen, GermanyJ. Turbomach. Oct 2007, 129(4): 791-799 (9 pages)
Published Online: September 5, 2006
Article history
Received:
July 19, 2006
Revised:
September 5, 2006
Citation
Laschet, G., Rex, S., Bohn, D., and Krewinkel, R. (September 5, 2006). "Three-Dimensional Numerical Analysis of Curved Transpiration Cooled Plates and Homogenization of Their Aerothermal Properties." ASME. J. Turbomach. October 2007; 129(4): 791–799. https://doi.org/10.1115/1.2720867
Download citation file:
Get Email Alerts
Cited By
A Digital Engineering Analysis of an Additively-Manufactured Turbine Vane
J. Turbomach (May 2025)
Mode Analysis for the Rotating Aerodynamic Disturbance of a Transonic Fan
J. Turbomach (May 2025)
Effect of Ceramic Matrix Composites on the Thermal Efficiency of a Power Generation Turbine
J. Turbomach (May 2025)
Heat Transfer Enhancement in Pulsating Flows: A Bayesian Approach to Experimental Correlations
J. Turbomach (May 2025)
Related Articles
Erratum: “Three-Dimensional Numerical Analysis of Curved Transpiration Cooled Plates and Homogenization of their Aerothermal Properties” [Journal of Turbomachinery, 129(4), 791–799 (2007)]
J. Turbomach (July,2011)
Experimental and Numerical Cross-Over Jet Impingement in an Airfoil Trailing-Edge Cooling Channel
J. Turbomach (October,2011)
Related Proceedings Papers
Related Chapters
Introduction
Introduction to Finite Element, Boundary Element, and Meshless Methods: With Applications to Heat Transfer and Fluid Flow
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Thermodynamic Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential