Abstract
The article presents a uew procedure to calculate the wall temperature of film-cooled turbine blades. The metlwdology utilises semi-empirical relations for film cooling effectiveness developed for a fiat plate. The correlations are corrected a-posteriori with parameters (Mach number, pressure, etc) resulting from aerodynamic analysis, performed by means of the Multiple Blade Interacting Streamtube Euler Solver (MISES). With the proposed approach, the disadvantages ofthe classical 2D approaches, that deal with slots instead of fihn cooling holes, are circumvented. The procedure is validated against experimental data and 3D CFD results. It is shown that the method, despite its simplicity', is relatively
accurate and computationally efficient, the computational cost being an order of magnitude lower than that ofthe conventional approaches. Thanks to this, the methodology is suited for Multidisciplinary Design Optimisation (MDO)
problems involving the conceptual aerothermo-structural design of turbine blades.
accurate and computationally efficient, the computational cost being an order of magnitude lower than that ofthe conventional approaches. Thanks to this, the methodology is suited for Multidisciplinary Design Optimisation (MDO)
problems involving the conceptual aerothermo-structural design of turbine blades.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 1st Global Power and Propulsion Forum |
| Subtitle of host publication | Jan 16-18,2017, Zurich, Switzerland |
| Number of pages | 10 |
| Publication status | Published - 2017 |
| Event | 1st Global Power and Propulsion Forum - Zurich, Switzerland Duration: 16 Jan 2017 → 18 Jan 2017 |
Conference
| Conference | 1st Global Power and Propulsion Forum |
|---|---|
| Abbreviated title | GPPF 2017 |
| Country/Territory | Switzerland |
| City | Zurich |
| Period | 16/01/17 → 18/01/17 |