Refinement of the Mean Streamline Method of Blade Section Design
| Autor: | M. W. McBride |
|---|---|
| Rok vydání: | 1977 |
| Předmět: | |
| Zdroj: | Journal of Fluids Engineering. 99:561-566 |
| ISSN: | 1528-901X 0098-2202 |
| DOI: | 10.1115/1.3448847 |
| Popis: | The Mean Streamline Method of cascade blade section design developed by Wislicenus correlates the differences in the shape of the blade camber-line and the one-dimensional mean flow streamline. Recent effort has been directed toward the extension of this design method, to cover a wider range of loading distributions, including trailing edge loaded blades, and blades with higher than usual solidities (C/S). A computer analysis of many available blade shapes for subsonic compressors and pumps with differing loading distributions that have been tested experimentally was made. Relations between the deviation of the camber-line from the mean flow streamline as a function of the lift coefficient, solidity, a loading distribution parameter and blade stagger angle were found. Using these correlations, a computerized design method was developed which rapidly produces blade shapes with specified design characteristics. A radial equilibrium theory is utilized to compute the actual blade surface pressure distribution. When a blade is to be designed which is similar to existing designs, the method has proven very reliable. |
| Databáze: | OpenAIRE |
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