Author: Bernard J. Frank (CAPT, USAF.)Publisher:
ISBN:
Category : Axial flow compressors
Languages : en
Pages :
Book Description
Analysis and Characterization of Compressor Stall Precursor Signals in Forward and Aft Swept High Speed Compressors
Author: Bernard J. Frank (CAPT, USAF.)Publisher:
ISBN:
Category : Axial flow compressors
Languages : en
Pages :
Book Description
Analysis and Characteristics of Compressor Stall Precursor Signals in Forward and AFT Swept High Speed Compressor
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 125
Book Description
The stall characteristic of four single-stage transonic compressor rotors were investigated as they were throttled to stall. Forward-swept, backward-swept, and straight leading edge rotors were examined. Three methods of analysis (1) windowed power spectrum densities of pressure and spatial Fourier coefficients, (2) phase tracking analysis, and (3) system identification were used to identify the first appearance of modal waves and their accompanying frequencies in order to identify a stall warning time. A direct correlation between the amount of stall warning time and the shape of the compressor characteristic was found. Specifically, if the compressor characteristic had a significant period of flat or positive slope, more stall warning was noted. It was also found that the forward-swept rotor consistently provided more stall warning time than the backward-swept and straight leading edge rotors.
Scientific and Technical Aerospace Reports
Author: Masters Theses in the Pure and Applied Sciences
Author: Wade H. ShaferPublisher: Springer Science & Business Media
ISBN: 1461519691
Category : Science
Languages : en
Pages : 426
Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 38 (thesis year 1993) a total of 13,787 thesis titles from 22 Canadian and 164 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 38 reports theses submitted in 1993, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference
Author: Sensing, Actuation, and Control in Aeropropulsion
Author: James Donald PaduanoPublisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 242
Book Description
Investigation at Supersonic Speeds of the Compressor Stall and Inlet Buzz Characteristics of a J34 - Spike-inlet Combination
Author: J. Cary NettlesPublisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 34
Book Description
For a Mach number range from 1.6 to 2.0 and angles of attack from 0 to 9 degrees the occurrence of stall was related to the presence of a pressure deficiency at the hub of the compressor. The referred engine air flow tended to increase as radial distortion level increased. Approaching the inlet buzz limit with the engine operating in or near a stall condition did not affect the minimum stable air flow of the diffuser, and conversely the presence of mild buzz did not affect the compressor stall limit. The stability limits of a 15 degree plus 10 degree double-cone inlet were essentially the same with the engine as with a choked plug.
Masters Theses in the Pure and Applied Sciences
Author: Sade H ShaferPublisher: Springer Science & Business Media
ISBN:
Category : Education
Languages : en
Pages : 440
Book Description
Cited in Sheehy, Chen, and Hurt . Volume 38 (thesis year 1993) reports a total of 13,787 thesis titles from 22 Canadian and 164 US universities. As in previous volumes, thesis titles are arranged by discipline and by university within each discipline. Any accredited university or college with a grad
Compressor Instability with Integral Methods
Author: Eddie Y.K. NgPublisher: Springer Science & Business Media
ISBN: 3540724125
Category : Technology & Engineering
Languages : en
Pages : 154
Book Description
This book brings together the quick integral approaches and advances in the field for the prediction of stall and surge problems in the compressor. The book is useful for people involved in the flow analysis, design and testing of rotating machinery. For students, it can be used as a specialized topic of senior undergraduate or graduate study. The book can also serve as self-study material.
Stall Precursor Study of High Frequency Data for Three High Speed, Swept Compressor Rotors
Author: James F. Anderton (CAPT, USAF.)Publisher:
ISBN:
Category : Axial flow compressors
Languages : en
Pages :
Book Description