Search
Now showing items 1-10 of 86
Attenuation of sound in lined circular ducts
(Cambridge : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1975], 1975)
In the previous report, we have used approximate expressions for the wall impedance for the discussion of sound attenuation in lined circular ducts. For instance, Eq. (2.5) has been used for the wall impedance of a circular ...
Comparison of three dimensional quasi-linear large swirl theory with measured outflow from a high-work compressor rotor
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1975], 1975)
A three-dimensional perturbation theory for incompressible strongly swirling flow in an annulus is applied to predict the outflow from a high-work compressor rotor (1)(2). A comparison of the analytical result with the ...
Collapse of the inter-electrode breakdown arc in the magnetic field direction
(Cambridge : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1975], 1975)
A two-dimensional inter-electrode breakdown arc which is uniform in the magnetic field direction is shown to be unstable. The growth time for the instability is of the order of the arc development time. It is unlikely that ...
An experimental and computational study of the flow in a transonic compressor rotor
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1976], 1976)
A comprehensive investigation of the flow field produced by an isolated transonic compressor rotor has been completed. This rotor has an overall diameter of two feet, an inlet hub/tip ratio of 0.5, a tip Mach number of 1.2 ...
Luminescent visualization of molecular and turbulent transport in a plane shear layer
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine Laboratory, [1977], 1977)
The purpose of this work is to contribute to the fundamental understanding of fluid turbulence by visualizing its detailed flow structures. Examination of these coherent structures gives information about the turbulent ...
The interaction of sound with turbulent flow
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1977], 1977)
Introduction: In the now classical theory of sound from turbulent flow by Lighthill boundaries were not considered. Further, it was assumed that the turbulent flow field was not altered by sound emission. For closed systems, ...
Air New England (1970-1974) : a case study of a commuter air carrier
(Cambridge, Mass. : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1975], 1975)
This is a brief account of research by CAB staff. The success of Air New England from the beginning of its corporate life to the summer of 1974, when it was offered a certificate of public convenience and necessity by the ...
A systems analysis of scheduled air transportation networks
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1979], 1979)
This work establishes the conditions for airline system design building from submodels of smaller aspects of air transportation. The first three sections develop submodels which then are combined in extensive numerical ...
Proceedings of the NASA/MIT Workshop on Airline Systems Analysis, Waterville Valley, New Hampshire, July 10-21, 1972
(Cambridge, Mass : Flight Transportation Laboratory, Dept. of Aeronautics and Astronautics, Massachusetts Institute of Technology, 1972, 1972)
Introduction: The recent renaming of the NASA Office of Advanced Research band Technology as the Office of Aeronautics and Space Technology emphasizes the new stress being placed on aeronautical research by the Federal ...
International civil air transport : transition following WW II
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, 1979, 1979)
International air transport, like many 20th Century marvels which are taken so much for granted today, broke out from its cocoon, so to speak, shortly after the end of World War II (WW II), took wing, and soared. Theretofore, ...