Experimental measurement of Alford's force in axial flow turbomachinery
Journal Article
·
· J. Eng. Gas Turb.; (United States)
This paper presents the results are preserved of experimental measurements made on a small, high-speed, axial-flow test apparatus to verify the existence of Alford's force and to investigate the validity of his mathematical prediction model. The measurements show that the cross-coupled aerodynamic force is linearly proportional to rotor eccentricity, and to stage torque, as predicted by Alford's theory. However, it was found that the force is also speed-dependent, and that the inlet flow conditions to the stage have a pronounced effect. For some special combinations of rotor speed and stage torque, the direction of the force is reversed.
- Research Organization:
- Texas A and M University, College Station, Texas
- OSTI ID:
- 6081343
- Journal Information:
- J. Eng. Gas Turb.; (United States), Journal Name: J. Eng. Gas Turb.; (United States) Vol. 106:3; ISSN JETPE
- Country of Publication:
- United States
- Language:
- English
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