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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Léonard, Olivier Demeulenaere, Alain |
| Copyright Year | 1997 |
| Abstract | A two-dimensional viscous inverse method for the design of compressor and turbine blades is presented. An initial geometry is modified iteratively to reach a target pressure distribution imposed on the blade surfaces. The Navier-Stokes equations are solved in a numerical domain of which some boundaries (the blade walls) move during the transient part of the computation. The blade modifications are based on the transpiration principle. The transpiration flux is computed from the difference between the actual and the prescribed pressure distributions. A high-resolution Navier-Stokes solver has been developed for this purpose, based on a Finite-Volume formulation. Multi-block structured grids allow for a selective concentration of discretization points in the zones of higher gradients. Both explicit (Runge-Kutta) and implicit (Newton-Krylov) time integration schemes have been implemented. Applications to turbine and compressor blade design illustrate the accuracy of the flow computation, and the efficiency of the inverse method. |
| Sponsorship | International Gas Turbine Institute |
| File Format | |
| ISBN | 9780791878682 |
| DOI | 10.1115/97-GT-416 |
| Volume Number | Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery |
| Conference Proceedings | ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition |
| Language | English |
| Publisher Date | 1997-06-02 |
| Publisher Place | Orlando, Florida, USA |
| Access Restriction | Open |
| Subject Keyword | Navier-stokes equations Turbine blades Blades Compressors Pressure Flow (dynamics) Transients (dynamics) Design Geometry Transpiration Computation Resolution (optics) Turbines |
| Content Type | Text |
| Resource Type | Article |
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