Abstract
This paper presents a quasi-three-dimensional flow calculation method including the three-dimensional flow relaxation effect in turbomachinery. A meridional flow solution is obtained by a streamline curvature method with a equilibrium equation formulated by exactly averaging the equation of continuity, momentum and energy equation in the circumferential direction. Blade-to-blade flows are solved by a singularity method considering the effects of stream surface inclination and axial velocity variation. A series of formulation for estimating the effects of the three-dimensional relaxation caused by the spanwise distribution of blade loading is performed using a secondary flow theory. In order to verify the validity of the method, it is applied to the flow analysis of a diagonal flow fan designed under a vortex type of constant circumferential velocity. The comparison of the calculated results with the experimental data shows a good agreement except the region where the flow field is affected by the tip leakage flow.
Original language | English |
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Title of host publication | Memoirs of the Kyushu University, Faculty of Engineering |
Publisher | Publ by Kyushu Univ |
Pages | 117-129 |
Number of pages | 13 |
Volume | 52 |
Edition | 1 |
Publication status | Published - Mar 1992 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Energy(all)
- Atmospheric Science
- Earth and Planetary Sciences(all)
- Management of Technology and Innovation