Results 101 to 110 of about 1,734,199 (244)

Fan noise reduction achieved by removing tip flow irregularities behind the rotor - forward arc test configurations [PDF]

open access: yes
The noise source caused by the interaction of the rotor tip flow irregularities (vortices and velocity defects) with the downstream stator vanes was studied. Fan flow was removed behind a 0.508 meter (20 in.) diameter model turbofan through an outer wall
Dittmar, J. H.   +2 more
core   +1 more source

Performance evaluation of synchronous reluctance motors with and without permanent magnets [PDF]

open access: yes, 2016
Nowadays, a growing interest in the efficiency and the cost of electrical machines has been noticed. Therefore, Synchronous Reluctance Motors (SynRMs) have become more attractive, thanks to their higher efficiency and nevertheless acceptable cost ...
Ibrahim, Mohamed Nabil Fathy   +2 more
core   +1 more source

Linear Model Predictive Control of Induction Machine [PDF]

open access: yes, 2015
This article presents new control algorithm for induction machine based on linear model predictive control (MPC). Controller works in similar manners as field oriented control (FOC), but control is performed in stator coordinates.
Mynář, Z.
core  

Experimental evaluation of transonic stators, data and performance report, multiple- circular-arc stator A [PDF]

open access: yes
Transonic stator with multiple circular arc airfoils and minimum curvature tested over range of flow angles and velocities - stator
Bogardus, G. A.   +2 more
core   +1 more source

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