Author: Massachusetts Institute of Technology. Gas Turbine & Plasma Dynamics LaboratoryPublisher:
ISBN:
Category :
Languages : en
Pages : 172
Book Description
Time-resolved Stagnation Temperature Measurement in a Transonic Compressor Stage
Author: Massachusetts Institute of Technology. Gas Turbine & Plasma Dynamics LaboratoryPublisher:
ISBN:
Category :
Languages : en
Pages : 172
Book Description
Detailed Time Resolved Measurements and Anaylsis of Unsteady Flow in a Transonic Compressor
Author: Massachusetts Institute of Technology. Gas Turbine & Plasma Dynamics LaboratoryPublisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 120
Book Description
Time Resolved Measurements in a Low Aspect Ratio Transonic Compressor Stage
Author: A. H. EpsteinAircraft Engines and Gas Turbines, second edition
Author: Jack L. KerrebrockPublisher: MIT Press
ISBN: 0262534037
Category : Technology & Engineering
Languages : en
Pages : 497
Book Description
Aircraft Engines and Gas Turbines is widely used as a text in the United States and abroad, and has also become a standard reference for professionals in the aircraft engine industry. Unique in treating the engine as a complete system at increasing levels of sophistication, it covers all types of modern aircraft engines, including turbojets, turbofans, and turboprops, and also discusses hypersonic propulsion systems of the future. Performance is described in terms of the fluid dynamic and thermodynamic limits on the behavior of the principal components: inlets, compressors, combustors, turbines, and nozzles. Environmental factors such as atmospheric pollution and noise are treated along with performance. This new edition has been substantially revised to include more complete and up-to-date coverage of compressors, turbines, and combustion systems, and to introduce current research directions. The discussion of high-bypass turbofans has been expanded in keeping with their great commercial importance. Propulsion for civil supersonic transports is taken up in the current context. The chapter on hypersonic air breathing engines has been expanded to reflect interest in the use of scramjets to power the National Aerospace Plane. The discussion of exhaust emissions and noise and associated regulatory structures have been updated and there are many corrections and clarifications.
Paper
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 452
Book Description
ASME Technical Papers
Author: Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 438
Book Description
Pressure and Temperature Measurements
Author: American Society of Mechanical Engineers. Winter Annual MeetingPublisher:
ISBN:
Category : Fluid dynamic measurements
Languages : en
Pages : 142
Book Description
Unsteady Radial Transport in a Transonic Compressor Stage
Author: P. A. KotidisPublisher:
ISBN:
Category : Compressors
Languages : en
Pages : 0
Book Description
Time-resolved radial transport has been measured in a transonic compressor rotor by injecting a thin sheet of tracer gas upstream of the rotor and then surveying the tracer concentration at the rotor exit. The simultaneous, co-located, high-frequency response measurements of local tracer gas concentration, total temperature, and total pressure made downstream of the rotor showed that most of the fluid transported radially appears in the blade wakes and that this fluid has considerably higher entropy than the circumferential mean. Both inward and outward fluid transport along the span was observed (3.5 percent of the total throughflow moved toward the tip while 1.6 percent moved toward the hub). Tracer concentration and fluid total temperature and pressure varied considerably from wake to wake, even on multiple samplings of the same blade. The time mean spreading rate inferred from these measurements is in general agreement with previously reported studies on multistage low-speed compressors and is well predicted by the method of Gallimore and Cumpsty. It is suggested that a vortex street in the blade wakes could be responsible for both the observed radial transport and the large wake-to- wake variability. A quasi-three-dimensional model of a vortex street wake was developed and shown to be consistent with the data. The model predicts all of the inward transport but only 20 percent of the outward transport. It is hypothesized that outflow in separated regions on the blade suction surface is responsible for the remainder of the transport toward the rotor tip. Since the entropy, as well as the mass of the fluid transported radially, was measured, an estimate of the redistribution of loss in rotor due to radial fluid transport could be made. This showed that the effect of radial transport in this rotor was to move substantial loss from the rotor hub to tip, implying that a conventionally measured spanwise efficiency survey may not accurately represent the performance of individual blade sections.
Time-resolved Measurements of a Transonic Compressor During Surge and Rotating Stall
Author: Denver Jackson Jr OsbornePublisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 226
Book Description
Unsteady Radial Transport in a Transonic Compressor Stage
Author: Massachusetts Institute of Technology. Gas Turbine LaboratoryPublisher:
ISBN:
Category :
Languages : en
Pages : 335
Book Description