Results 61 to 70 of about 7,731 (188)

Design study of a regenerative pump using one-dimensional and three-dimensional numerical techniques [PDF]

open access: yes, 2012
Regenerative pumps are low cost, compact, able to deliver high heads at low flow rates. Furthermore with stable performance characteristics they can operate with very small NPSH.
Baumgartner, A.   +2 more
core   +1 more source

Numerical study of the effect of inner guide vanes on performance of multi-blade centrifugal fan of range hood

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
Abstract This paper focus on the effect of inner guide vanes on the aerodynamic performance of multi-blade centrifugal fan (MCF) used to range hood. The Reynolds-averaged Navier-Stokes equations with the RNG k-ε turbulence model are discretized and solved by Fluent.
Dongfang Zhao, Ruoning Chen, Xue-yi You
openaire   +1 more source

Advanced General Aviation Turbine Engine (GATE) concepts [PDF]

open access: yes
Concepts are discussed that project turbine engine cost savings through use of geometrically constrained components designed for low rotational speeds and low stress to permit manufacturing economies.
Lays, E. J., Murray, G. L.
core   +1 more source

Superhybrid composite blade impact studies [PDF]

open access: yes
The feasibility of superhybrid composite blades for meeting the mechanical design and impact resistance requirements of large fan blades for aircraft turbine engine applications was investigated.
Chamis, C. C.   +2 more
core   +1 more source

Future directions in aeropropulsion technology [PDF]

open access: yes
Future directions in aeropropulsion technology that have been identified in a series of studies recently sponsored by the U.S. Government are discussed.
Glassman, A. J., Saunders, N. T.
core   +1 more source

Large-Scale Advanced Prop-Fan (LAP) blade design [PDF]

open access: yes
This report covers the design analysis of a very thin, highly swept, propeller blade to be used in the Large-Scale Advanced Prop-Fan (LAP) test program.
Sullivan, William E.   +2 more
core   +1 more source

Preliminary study of advanced turboprop and turboshaft engines for light aircraft [PDF]

open access: yes
The effects of engine configuration, advanced component technology, compressor pressure ratio and turbine rotor-inlet temperature on such figures of merit as vehicle gross weight, mission fuel, aircraft acquisition cost, operating, cost and life cycle ...
Eisenberg, J. D.   +2 more
core   +1 more source

SAPNEW: Parallel finite element code for thin shell structures on the Alliant FX/80 [PDF]

open access: yes
The results of a research activity aimed at providing a finite element capability for analyzing turbo-machinery bladed-disk assemblies in a vector/parallel processing environment are summarized.
Kamat, Manohar P., Watson, Brian C.
core   +1 more source

QCGAT aircraft/engine design for reduced noise and emissions [PDF]

open access: yes, 1980
The high bypass ratio QCGAT engine played an important role in shaping the aircraft design. The aircraft which evolved is a sleek, advanced design, six-place aircraft with 3538 kg (7,800 lb) maximum gross weight. It offers a 2778 kilometer (1500 nautical
Lanson, L., Terrill, K. M.
core   +1 more source

Advanced General Aviation Turbine Engine (GATE) study [PDF]

open access: yes
The small engine technology requirements suitable for general aviation service in the 1987 to 1988 time frame were defined. The market analysis showed potential United States engines sales of 31,500 per year providing that the turbine engine sales price ...
Benstein, E. H., Smith, R.
core   +1 more source

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