Results 171 to 180 of about 1,822 (225)

A review on aero-engine inlet-compressor integration and inlet flow distortion in axial compressors. [PDF]

Fundam Res
Li Z, Sun D, Dong X, Sun X.
europepmc   +1 more source

Surface EMG-Validated Multi-DoF Wheelchair-Based Rehabilitation Device. [PDF]

Bioengineering (Basel)
P J, Rao M.
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Aerodynamic simulation and control analysis of an aircraft emergency tailplane system. [PDF]

Sci Rep
Yan D, Zhao Z, Ye L, Zhao G, Li F.
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Delta wing design in earliest nektonic vertebrates. [PDF]

Commun Biol
Botella H, Fariña RA, Huera-Huarte F.
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Influence of Rotation on Dynamic Stall

Journal of the American Helicopter Society, 2013
A computational investigation of the effect of rotation on two-dimensional (2D) deep dynamic stall has been undertaken, showing that the effect of rotation is to reduce the severity of the pitching moment peak and cause earlier reattachment of the flow. A generic single blade rotor geometry was investigated, which had a pitching oscillation around the
Gardner, Anthony Donald, Richter, Kai
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Modeling for control of rotating stall

Automatica, 1994
Abstract An analytical model for control of rotating stall has been obtained from the basic fluid equations describing the process at inception. The model describes rotating stall as a traveling wave packet, sensed—in spatial components—via the Fourier decomposition of measurements obtained from a circumferential array of evenly distributed sensors ...
James D. Paduano, Lena S. Valavani, A. H. Epstein, Edward M. Greitzer, G. R. Guenette   +4 more
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A theory for rotating stall in contra-rotating fans

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020
This paper reports on a theory of rotating stall in contra-rotating fans and compressors. The theory is developed from Moore’s theory. A second-order hysteresis is used in the current study for the pressure rise of the counter-rotating rows. This enables the model to predict the transient behavior of the stall cell.
Hossein Khaleghi, Mohammad Javad Shahriyari, Martin Heinrich   +2 more
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High performance computing of compressor rotating stall and stall control

Integrated Computer-Aided Engineering, 2009
The performance of gas turbine engines is limited by compressor stall. Stall control technologies developed recently have demonstrated the effectiveness of steady tip injection to increase the stable operating range of high-speed axial and centrifugal compressors.
Jen-Ping Chen, Robert S. Webster, Michael D. Hathaway, Gregory P. Herrick, Gary J. Skoch   +4 more
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STABILITY ANALYSIS AND CONTROL OF ROTATING STALL

IFAC Proceedings Volumes, 1992
Issues of stability and control of rotating stall in axial flow compressor dynamics are considered. A stationary bifurcation analysis of compression system near the stall point is obtained, which shows that the stability of system can be predicted from either of two mathematical models of system, regarding the choice of state variables.
Der-Cherng Liaw, E.H. Abed
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Criteria for Spike Initiated Rotating Stall

Volume 6: Turbo Expo 2005, Parts A and B, 2005
A computational study to define the phenomena that lead to the onset of short length-scale (spike) rotating stall disturbances has been carried out. Unsteady simulations show there are two conditions necessary for the formation of spike disturbances, both of which are linked to the tip clearance flow. One is that the interface between the tip clearance
Huu Duc Vo, Choon S. Tan, Edward M. Greitzer   +2 more
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