Results 81 to 90 of about 10,932 (206)
3-D Viscous Flow Analysis of a Mixed Flow Pump Impeller
International Journal of Rotating Machinery, 2001 This paper presents the results of a study using a coarse grid to analyze the flow in the impeller of a mixed flow pump. A commercial computational fluid dynamics code (FLOTRAN) is used to solve the 3-D Reynolds Averaged Navier Stokes equations in a ...
Steven M. Miner
doaj +1 more source
Energy efficient engine high pressure turbine test hardware detailed design report [PDF]
The high pressure turbine configuration for the Energy Efficient Engine is built around a two-stage design system. Moderate aerodynamic loading for both stages is used to achieve the high level of turbine efficiency.
Halila, E. E. +2 more
core +1 more source
Flow and Heat Transfer in Rotating Compressor Cavities With Inverted Shroud-Throughflow Temperature Differences [PDF]
Journal of TurbomachineryAbstract In an aero-engine compressor, co-rotating discs form cavities that interact with an axial throughflow of secondary air at low radius. In the high-pressure (HP) compressor the shroud is hotter than the throughflow (directed downstream to the turbine) and the radial temperature gradient creates buoyancy-induced flow at Grashof ...
Pernak, Mikolaj J. +5 more
openaire +1 more source
Energy efficient engine high pressure turbine ceramic shroud support technology report [PDF]
This work represents the development and fabrication of ceramic HPT (high pressure turbine) shrouds for the Energy Efficient Engine (E3). Details are presented covering the work performed on the ceramic shroud development task of the NASA/GE Energy ...
Carlson, R. G., Nelson, W. A.
core +1 more source
International Journal of Turbomachinery, Propulsion and PowerThe German Aerospace Center designed, aero-mechanically optimized and experimentally investigated its own counter-rotating shrouded fan stage in the frame of the project CRISPmulti. Their target and the motivation of this work was, on the one hand, the generation of a highly accurate experimental database for the validation of the modern numerical ...
Lengyel-Kampmann, Timea +3 more
openaire +4 more sources
NASA Low-Speed Centrifugal Compressor for Fundamental Research [PDF]
A centrifugal compressor facility being built by the NASA Lewis Research Center is described; its purpose is to obtain benchmark experimental data for internal flow code verification and modeling.
Adam, P. W., Buggele, A. E., Wood, J. R.
core +1 more source
A study of low-cost reliable actuators for light aircraft. Part B: Appendices [PDF]
Computer programs written in FORTRAN are given for time response calculations on pneumatic and linear hydraulic actuators. The programs are self-explanatory with comment statements.
Eijsink, H., Rice, M.
core +1 more source
Long-term CF6 engine performance deterioration: Evaluation of engine S/N 451-479 [PDF]
The performance testing and analytical teardown of CF6-6D engine is summarized. This engine had completed its initial installation on DC-10 aircraft. The investigative test program was conducted inbound prior to normal overhaul/refurbishment.
Kramer, W. H., Smith, J. J.
core +1 more source
Composite seal for turbomachinery [PDF]
, 1979 A gas path seal suitable for use with a turbine engine or compressor is provided. A shroud wearable or abradable by the abrasion of the rotor blades of the turbine or compressor protects the rotor blades. A compliant backing surrounds the shroud.
Bill, R. C., Ludwig, L. P.
core +3 more sources
FREQUENCIES AND MODES OF ROTATING FLEXIBLE SHROUDED BLADED DISCS-SHAFT ASSEMBLIES
TASK Quarterly, 2003 It is now increasingly necessary to predict accurately, at the design stage and without excessive computing costs, the dynamic behaviour of rotating parts of turbomachines, so that resonant conditions at operating speeds are avoided. In this study, global rotating mode shapes of flexible shrouded bladed disc-shaft assemblies are calculated.
JACEK SOKOŁOWSKI +2 more
openaire +1 more source