Results 41 to 50 of about 593 (134)
An Examination of the Effect of Boundary Layer Ingestion on Turboelectric Distributed Propulsion Systems [PDF]
, 2011 A Turboelectric Distributed Propulsion (TeDP) system differs from other propulsion systems by the use of electrical power to transmit power from the turbine to the fan.
Brown, Gerald V. +3 more
core +1 more source
Efficient, Low Pressure Ratio Propulsor for Gas Turbine Engines [PDF]
A gas turbine engine includes a bypass flow passage that has an inlet and defines a bypass ratio in a range of approximately 8.5 to 13.5. A fan is arranged within the bypass flow passage.
Gallagher, Edward J., Monzon, Byron R.
core +4 more sources
Analisa Dimensi Sistem Foil Dan Perencanaan Nozzle Pada Kapal Jet Foil [PDF]
, 1992 Sebagai tenaga penggerak propulsi Kapal Jet Foil digunakan mesin turbin gas dan water jet pump. Jet Foil Propulsion Power diproduksi oleh dua buah turbin gas Allison 501 -K, masing -masing turbin ini dihubungkan dengan poros putaran tinggi ( High Speed ...
Suyasa, I Ketut
core +3 more sources
Numerical Simulation and Analysis of the Cavitation Noise Characteristics of an IMP Propulsor
Polish Maritime ResearchThe objective of this study is to ascertain the cavitation noise characteristics of an integrated motor pump-jet (IMP) propulsor. The far-field cavitation radiation noise of the propulsor is analysed using computational fluid dynamics and acoustic ...
Li Qiao +2 more
doaj +1 more source
Zhongguo Jianchuan YanjiuObjectiveTo address the lightweight and vibration reduction needs of pump-jet propulsors, this study proposes the use of carbon fiber-reinforced composites （CFRC） in propulsor ducts.MethodFirst, a two-way CFD/FEM fluid-structure interaction （FSI） method ...
Mengzheng ZHANG +5 more
doaj +1 more source
Research on cavitation performance of a pump-jet propulsor and its interaction with vortexes
Results in EngineeringThe pump-jet propulsor (PJP) has become a key propulsion system for underwater vehicles due to its high efficiency and low noise characteristics. However, its cavitation issues under high-speed or non-uniform inflow conditions severely threaten its ...
Sijie Zheng +7 more
doaj +1 more source
Analysis and evaluation of an integrated laminar flow control propulsion system [PDF]
Reduction of drag has been a major goal of the aircraft industry as no other single quantity influences the operating costs of transport aircraft more than aerodynamic drag. It has been estimated that even modest reduction of frictional drag could reduce
Dewitt, Kenneth J., Keith, Theo G., Jr.
core +1 more source
Low-thrust chemical propulsion system pump technology [PDF]
Candidate pump and driver systems for low thrust cargo orbit transfer vehicle engines which deliver large space structures to geosynchronous equatorial orbit and beyond are evaluated.
Sabiers, R. L., Siebenhaar, A.
core +1 more source
Theory of one-element pumps for propulsion [PDF]
A basic theory for one-element propulsion pumps is developed. A limit to the obtainable efficiency is established and relationships among pump-performance parameters that result in the greatest efficiency are indicated.
Levy, J.
core +1 more source
Size scale effect in cavitation erosion [PDF]
An overview and data analyses pertaining to cavitation erosion size scale effects are presented. The exponents n in the power law relationship are found to vary from 1.7 to 4.9 for venturi and rotating disk devices supporting the values reported in the ...
Buckley, D. H., Rao, B. C., Rao, P. V.
core +1 more source