Browsing Department of Aeronautics and Astronautics by Title
Now showing items 1-20 of 503
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40 Years of MIT MVL Memories
(2013-05-06)385 photos shown at May 2009 symposium honoring MVL Director C.M. Oman -
A.I.S.E. : a hybrid scheduling system
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, 1985, 1985)A.I.S.E. (Advanced Interactive Scheduling Environment) is an interactive computer system designed to schedule efficiently a fleet of vehicles accordingly to a set of requests made in advance or at the last minute. The ... -
Accurate, efficient difference operators for the turbulent field equations
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1975], 1975)Introduction: A potentially powerful method for predicting and describing turbulent flow fields is that of utilizing a finite number of moments of the instantaneous Navier-Stokes equations. This sequence of moment equations ... -
Active control of rotating stall in a three-stage axial compressor
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1993], 1993)Stall inception in a three-stage axial compressor has been suppressed over a range of previously unstable operating points through the feedback of velocity perturbations to the inlet flow field. Perturbations were generated ... -
Active control of rotating stall in axial compressors
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1992], 1992)An active control system has been implemented on a low-speed single-stage axial compressor. This control system stabilizes the perturbations which normally lead to rotating stall, thus extending the range of operation of ... -
Active Polarimetric Measurements for Identification and Characterization of Space Debris
(Institute of Electrical and Electronics Engineers, 2017-06)A bench-top polarimeter ( λ = 1064 nm) is used to measure the polarimetric Bidirectional Reflectance Distribution Function (BRDF) of several common spacecraft materials in both bistatic and monostatic geometries. The Mueller ... -
Active stabilization of rotating stall and surge in a transonic single stage axial compressor
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, 1997, 1997)Rotating stall and surge have been stabilized in a transonic single-stage axial compressor using active feedback control. The control strategy is to sense upstream wall static pressure patterns and feed back the measured ... -
An adaptive Final Approach Spacing Advisory system : modeling, analysis and simulation
(Cambridge, Mass. : Flight Transportation Laboratory, Dept. of Aeronautics and Astronautics, Massachusetts Institute of Technology, [1991], 1991)As airline industry grows and air traffic increases drastically, terminal airspace around busy airports is becoming more and more crowded. To accommodate the soaring demand for use of airports, a plausible and profitable ... -
Adaptive Mesh Euler Equation Computations of Vortex Breakdown in Delta Wing Flow
(Aerospace Computational Design Lab, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 1993-01)A solution method for the three-dimensional Euler equations is formulated and implemented. The solver uses an unstructured mesh of tetrahedral cells and performs adaptive refinement by mesh-point embedding to increase ... -
An advanced situation display for air traffic control
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1985], 1985)A new approach to presenting Air Traffic Control (ATC) situation information to controllers has been devised and implemented. The approach allows the controller to spend more time analyzing traffic trends by decreasing the ... -
An advanced time-dependent queueing model for airport delay analysis
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1979], 1979)Introduction: In the past several years many attempts have been made to model the probabilistic nature of airport runway operations using a queueing-theoretic approach to runway modeling. Early studies were limited by ... -
Aerodynamic Optimization Based on the Euler and Navier-Stokes Equations using Unstructured Grids
(Aerospace Computational Design Laboratory, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 1998-06)The overall problem area addressed is that of efficient aerodynamic shape design through the use of computational fluid dynamics (CFD). A method is presented for performing optimization including modal inverse design and ... -
Aerodynamics of aircraft engines : stride and stumbles
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, 1992, 1992)Summary: Attempts to understand and predict the aerodynamic behaviour of compressors and turbines in aircraft gas turbines have been encouraged by the intense competitive pressure which exists. Many of the apparently most ... -
Air freight : the problems of airport restrictions : final report on the Conference of Air Cargo Industry Considerations of Airport Curfews
(Cambridge, MA : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1979], 1979)Noise due to aircraft was considered to be a potential problem as far back as 1952, when the Doolittle Commission established by President Truman urged that a major effort be made to reduce aircraft noise. With the 'advent ... -
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 ... -
Air service to small communities-directions for the future : final report of the Workshop on Low/Medium Density Air Transportation
([Cambridge, Mass.] : M.I.T. Flight Transportation Laboratory, [1974], 1974)Introduction: In the decade between 1962 and 1972, certificated air service was deleted at about 250 points in the United States. In some of these cases, the service was no longer needed because of improved highway access ... -
An air traffic control simulator for the evaluation of flow management strategies
(Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, Flight Transportation Laboratory, [1987], 1987)An air traffic-control (ATC) simulator for the evaluation of flow management strategies was designed and implemented in Lisp. The ATC system is modeled as a network of queueing systems. Flights are generated from a flight ... -
Air transportation in the 1980's, and the role of IATA : address :
(Cambridge. Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1980], 1980)"(Ladies &) Gentlemen, I am grateful for this opportunity to talk to you about the developing scene in the civil air transport industry. And to take a look at the evolving role of IATA - the International Air Transport ... -
Air travel demand and airline seat inventory management
(Cambridge, MA : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1987], 1987)Many airlines practice differential pricing of fare products that share a common inventory of available seats on an aircraft. Seat inventory management is the process of limiting the number of seats made available to each ... -
Aircraft collision models
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1982], 1982)Introduction: The threat of midair collisions is one of the most serious problems facing the air traffic control system and has been studied by many researchers. The gas model is one of the models which describe the expected ...
