Screw feeders are devices suitable for handling a wide variety of bulk solids materials that have good flow ability characteristics and are often used as dosing feeders in food industry and agriculture. The manner in which material flows into the screw feeder affects the flow characteristics of the feeding hopper, the residence periods of the material in various locations in the bunker and thus the properties of the dosed material. The present paper will present some experimental results...
Topics: Dosing screw, Mass Flow Hoppers, Flow Profile
The present study is to investigate the heat transfer enhancement in a cylindrical heat exchanger using porous media. The heat exchanger is modelled by a cylindrical cavity (Shell) with inlet and outlet thermally insulated ports and five tubes which contain hot water and cold water flows in shell. The effect of porosity on heat transfer enhancement is studied at different mass flow rate 0.15, 0.2, 0.25 and 0.30 Kg/sec. The study about effect of porosity on heat transfer enhancement is done by...
Topics: Porous medium, Heat exchanger, CFD, porosity, mass flow rate.
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361
Jun 18, 2010
06/10
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Delery, J.; Hardy, J.-M
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Computing methods for supersonic ejector nozzles with low and high secondary mass flow rates
Topics: COMPUTATION, NOZZLE FLOW, SECONDARY FLOW, SUPERSONIC NOZZLE, EJECTORS, MASS, MASS FLOW RATE, NOZZLE...
For many fluid-mass-rate-of -f low metering situations, a measure of the fluid's density-velocity product is required. The density -velocity (pv) product is multiplied by an effective conduit cross -sectional area to yield the mass-rate-of-f low. The area multiplication is accomplished by simply changing the scale of the pv-product indicator. The purpose of this paper is to show how a magnetically-driven vibrating reed can be used to measure either the pv product of a fluid or its...
Topics: vibrating-reed, mass flow meter, fluid flow metering, flow meter
Diesel Engine is very popular and is being used in many industries. It is used in automobile for transmitting power to the wheels, used in generator sets for producing electricity and also used in the constructing machinery to mix the construction materials. Diesel engine is also used in telecommunication infrastructure and mining facilities. Internal combustion engine has four strokes. Intake, compression, expansion and exhaust strokes are the common four strokes in an internal combustion...
Topics: IC Engine, Port Flow Simulation, Swirl, Mass Flow Rate & Valve
An equation of motion for a one dimensional rocket is derived as a function of the mass flow rate into the acceleration chamber and the velocity distribution along the chamber, thereby including the transient flow changes in the chamber. The derivation of the mass density requires the introduction of the special time coordinate. The equation of motion is derived from both classical force and momentum approaches and is shown to be consistent with the standard equation expressed in terms of flow...
Topics: NASA Technical Reports Server (NTRS), EQUATIONS OF MOTION, INTERIOR BALLISTICS, MASS FLOW, ROCKET...
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392
May 29, 2011
05/11
by
Hoppe, Sven Marc
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The increasing competition in the market of civil aircraft leads to operating efficiency and passenger comfort being very important sales arguments. Continuous developments in jet propulsion technology helped to reduce energy consumption, as well as noise and vibrations due to the engines. The main problem with respect to ride comfort is, however, the transmittance of accelerations and jerkiness imposed by atmospheric turbulence from the wings to the fuselage. This 'gust' is also a design...
Topics: INJECTION, SUPERSONIC SPEED, CROSS FLOW, INJECTORS, MASS FLOW RATE, FREQUENCIES, EXPERIMENTATION
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Jun 18, 2010
06/10
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Kaufman, H. R.; Koffel, W. K
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Tail-pipe fuel ratio, mass flow of combustion gas, and radial fuel flow distribution on cooling requirements of tail-pipe burner with annular cooling-air passage
Topics: ANNULI, RADIAL FLOW, TEMPERATURE PROFILES, BURNER, COMBUSTION, COOLING, MASS FLOW, TEMPERATURE...
No abstract available
Topics: NASA Technical Reports Server (NTRS), ACOUSTICS, FAR FIELDS, STATIC PRESSURE, MIXERS, MASS FLOW...
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Jun 2, 2011
06/11
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Wilson, Edward; Sutter, David W.; Berkovitz, Dustin; Betts, Bradley J.; Kong, Edmund; delMundo, Rommel; Lages, Christopher R.; Mah, Robert W.; Papasin, Richar
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By analyzing the motions of a thruster-controlled spacecraft, it is possible to provide on-line (1) thruster fault detection and isolation (FDI), and (2) vehicle mass- and thruster-property identification (ID). Technologies developed recently at NASA Ames have significantly improved the speed and accuracy of these ID and FDI capabilities, making them feasible for application to a broad class of spacecraft. Since these technologies use existing sensors, the improved system robustness and...
Topics: DESIGN OPTIMIZATION, FLUIDICS, MASS FLOW, JET FLOW, VIABILITY, DESIGN ANALYSIS, COMPRESSED AIR
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221
Jul 5, 2010
07/10
by
Hewitt, J. E
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Seven of the experiments flown on Biosatellite 2 were designed to determine the combined effects of radiation and weightlessness on mortality and mutagenesis in a variety of living systems exposed to an onboard source of radiation. Several months after the flight, a series of ground tests was initiated to determine whether the observed effects of interaction were due to vibration and acceleration associated with the flight, rather than to weightlessness. The results of dosimetry measurements...
Topics: HEAT TRANSFER, JET IMPINGEMENT, LAMINAR BOUNDARY LAYER, MASS FLOW, PLATES, TURBULENT FLOW
The design, development, and manufacture of an all mechanical mass flow controller are discussed. A test program was conducted using inert gas as the test medium. The unit controlled the pressure within plus of minus one percent. An analytical method is presented for relating the control pressure error with error in mass flow.
Topics: NASA Technical Reports Server (NTRS), FUEL CONTROL, LIQUID ROCKET PROPELLANTS, MASS FLOW FACTORS,...
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Jul 12, 2010
07/10
by
NON
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Possible mechanisms by which short term solar variability may effect the atmosphere are reviewed. If accompanied by an extensive supporting program of ground, rocket, and balloon measurements, lidar experiments may play a significant role in determining the (1) magnetospheric convection patterns of Mg(); (2) chemical coupling from thermosphere to mesosphere; and (3) ozone heating effects on circulation. Requirements for sortie missions to study mesospheric aspects related to sun-weather...
Topics: INFRARED RADIATION, MASS FLOW RATE, RADIATIVE HEAT TRANSFER, REENTRY EFFECTS, WIND TUNNEL TESTS,...
The present work investigates the thermal performance of storage unit using phase change material by experimentally and numerically. Commercial grade stearic acid is used as phase change material (PCM) packed in two cylindrical copper tubes and water is used as heat transfer fluid (HTF). The instantaneous temperature variations of PCM at different layers along the axial direction of the tube are experimentally measured. The PCM temperature at various mass flow rates are measured by...
Topics: Mechanical Engineering Phase change material, Heat transfer fluid, Mass flow rate, Thermal...
A technique for measuring calibration conversion factors for hydrocarbon mass flowmeters was developed. It was applied to a widely used type of commercial thermal mass flowmeter for hydrocarbon gases. The values of conversion factors for two common hydrocarbons measured using this technique are in good agreement with the empirical values cited by the manufacturer. Similar agreements can be expected for all other hydrocarbons. The technique is based on Nernst theorem for matching the partial...
Topics: NASA Technical Reports Server (NTRS), CALIBRATING, CONVERSION, FLOWMETERS, HYDROCARBONS, MASS FLOW...
An acousto-optic cryogenic flow sensor (CFS) determines mass flow of cryogens for spacecraft propellant management. The CFS operates unobtrusively in a high-pressure, high-flowrate cryogenic environment to provide measurements for fluid quality as well as mass flow rate. Experimental hardware uses an optical plane-of-light (POL) to detect the onset of two-phase flow, and the presence of particles in the flow of water. Acousto-optic devices are used in laser equipment for electronic control of...
Topics: NASA Technical Reports Server (NTRS), CRYOGENIC FLUIDS, ELECTRONIC CONTROL, MASS FLOW,...
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Jul 9, 2010
07/10
by
MACKENTHUN, W
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THE INSTALLATION AND CHARACTERISTICS OF A WINDMILL POWER GENERATION PLANT ARE DISCUSSED. THE METEOROLOGICAL PARAMETERS OF THE GERMAN NORTH SEA COAST WHICH INFLUENCED THE LOCATION OF THE WINDMILL POWER GENERATING SYSTEM ARE ANALYZED. THE REGULATING DEVICES FOR COMPENSATING FOR CHANGES IN WIND VELOCITY ARE DESCRIBED. RESULTS OF THE POWER GENERATION OPERATION FOR THE YEAR 1950 ARE TABULATED.
Topics: CONVECTION, FLUID DYNAMICS, MASS FLOW, SOLAR ROTATION, CONVECTIVE FLOW, SOLAR RADIATION, SURFACE...
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196
Jun 27, 2010
06/10
by
Vernov, S. N., et al
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No Abstract Available
Topics: GAS FLOW, HEAT TRANSFER, LIGHT ELEMENTS, REFLECTION, MASS FLOW, RAREFIED GASES, SPACECRAFT, UPPER...
A facility for the precise calibration of mass fuel flowmeters and turbine flowmeters located at AMETEK Aerospace Products Inc., Wilmington, Massachusetts is described. This facility is referred to as the Test and Calibration System (TACS). It is believed to be the most accurate test facility available for the calibration of jet engine fuel density measurement. The product of the volumetric flow rate measurement and the density measurement, results in a true mass flow rate determination. A...
Topics: NASA Technical Reports Server (NTRS), CALIBRATING, FLOW MEASUREMENT, FLOWMETERS, FUEL FLOW, MASS...
A method and apparatus are provided for sensing the mass flow rate of a fluid flowing through a pipe. A light beam containing plural individual wavelengths is projected from one side of the pipe across the width of the pipe so as to pass through the fluid under test. Fiber optic couplers located at least two positions on the opposite side of the pipe are used to detect the light beam. A determination is then made of the relative strengths of the light beam for each wavelength at the at least...
Topics: NASA Technical Reports Server (NTRS), DETECTION, FIBER OPTICS, MASS FLOW, MASS FLOW RATE, PATENTS,...
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Jun 26, 2010
06/10
by
Lebedev, M. G., et al
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Experimental and mathematical investigation of interaction of supersonic jet and acoustic field
Topics: AERODYNAMIC CHARACTERISTICS, ARGON, CENTRIFUGAL COMPRESSORS, PERFORMANCE TESTS, COMPRESSOR BLADES,...
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This document stipulates protocols for measuring bio-optical and radiometric data for the Sensor Intercomparison and Merger for Biological and Interdisciplinary Oceanic Studies (SIMBIOS) Project activities and algorithm development. The document is organized into 6 separate volumes as Ocean Optics Protocols for Satellite Ocean Color Sensor Validation, Revision 4. Volume I: Introduction, Background and Conventions; Volume II: Instrument Specifications, Characterization and Calibration; Volume...
Topics: CONTROL SYSTEMS DESIGN, PITCHING MOMENTS, AIRFOILS, BLOWING, MASS FLOW, DRAG REDUCTION, COANDA...
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1.4K
Jul 11, 2010
07/10
by
NON
texts
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Technology generated by NASA and specifically associated with advanced conventional takeoff and landing transport aircraft is reported. Topics covered include: aircraft propulsion; structures and materials; and laminar flow control.
Topics: COMPUTER PROGRAMS, NETWORK ANALYSIS, SECONDARY FLOW, TURBOMACHINERY, FORTRAN, MASS FLOW, PIPE FLOW,...
Three applications of the ethylene trace-gas technique to high-speed flows are described: flow-field tracking, air-to-air mixing, and bleed mass-flow measurement. The technique involves injecting a non-reacting gas (ethylene) into the flow field and measuring the concentration distribution in a downstream plane. From the distributions, information about flow development, mixing, and mass-flow rates can be dtermined. The trace-gas apparatus and special considerations for use in high-speed flow...
Topics: NASA Technical Reports Server (NTRS), ATMOSPHERIC COMPOSITION, ETHYLENE, FLOW DISTRIBUTION, GASEOUS...
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Jun 2, 2011
06/11
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Knuth, Kevin H.; Shah, Ankoor S.; Truccolo, Wilson; Ding, Ming-Zhou; Bressler, Steven L.; Schroeder, Charles E
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Electric potentials and magnetic fields generated by ensembles of synchronously active neurons in response to external stimuli provide information essential to understanding the processes underlying cognitive and sensorimotor activity. Interpreting recordings of these potentials and fields is difficult as each detector records signals simultaneously generated by various regions throughout the brain. We introduce the differentially Variable Component Analysis (dVCA) algorithm, which relies on...
Topics: HYDROGEN PEROXIDE, MASS FLOW RATE, STABILITY, CHEMICAL EVOLUTION, OXYGEN, CHEMICAL REACTIONS,...
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Jun 21, 2010
06/10
by
Erzberger, H
texts
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Analysis and design of model following control system by state space techniques
Topics: MAGNETOHYDRODYNAMICS, PLASMA JETS, PROPELLANTS, VELOCITY MEASUREMENT, ELECTRIC FIELDS, IONS,...
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Jun 1, 2011
06/11
by
Rabelo, Luis C
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This is a report of my activities as a NASA Fellow during the summer of 2002 at the NASA Kennedy Space Center (KSC). The core of these activities is the assigned project: the Virtual Test Bed (VTB) from the Spaceport Engineering and Technology Directorate. The VTB Project has its foundations in the NASA Ames Research Center (ARC) Intelligent Launch & Range Operations program. The objective of the VTB project is to develop a new and unique collaborative computing environment where simulation...
Topics: BYPASS RATIO, TURBOFANS, MASS FLOW RATE, PROPULSIVE EFFICIENCY, JET FLOW, TURBOFAN ENGINES,...
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504
May 23, 2011
05/11
by
Lo, C. P.; Quattrochi, D. A.; Luvall, J. C
texts
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Day and night airborne thermal infrared image data at 5 m spatial resolution acquired with the 15-channel (0.45 micron - 12.2 micron) Advanced Thermal and Land Applications Sensor (ATLAS) over Alabama, Huntsville on 7 September, 1994 were used to study changes in the thermal signatures of urban land cover types between day and night. Thermal channel number 13 (9.6 micron - 10.2 micron) data with the best noise-equivalent temperature change (NEAT) of 0.25 C after atmospheric corrections and...
Topics: SLOTS, FLOW DISTRIBUTION, STATIC PRESSURE, MASS FLOW, TURBULENT BOUNDARY LAYER, SHOCK WAVES,...
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Jun 27, 2010
06/10
by
Gnos, A. V
texts
eye 250
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No Abstract Available
Topics: FIGHTER AIRCRAFT, INTAKE SYSTEMS, SURGES, TURBOJET ENGINES, GRAPHS (CHARTS), MASS FLOW FACTORS,...
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May 31, 2011
05/11
by
Freedman, Richard S
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In collaboration with the laboratory spectroscopy group of the Ames Atmospheric Physics Research Branch (SGP), high resolution infrared spectra of molecules that are of importance for the dynamics of the earth's and other planets' atmospheres were acquired using the SGP high resolution Fourier transform spectrometer and gas handling apparatus. That data, along with data acquired using similar instrumentation at the Kitt Peak National Observatory was analyzed to determine the spectral parameters...
Topics: BURNING TIME, BALLISTICS, INCLUSIONS, NOZZLE DESIGN, SLAGS, NOZZLE GEOMETRY, DIMENSIONAL ANALYSIS,...
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437
Jun 27, 2010
06/10
by
Curwen, P. W.; Spencer, P. R.; Tryon, H. B
texts
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Half-sine shock and sinusoidal vibration tests of gas bearing supported rotor assembly and effects on mechanical performance of Brayton cycle space-power turbomachinery
Topics: DIBORANE, LIQUID ROCKET PROPELLANTS, ORIFICE FLOW, OXYGEN FLUORIDES, PLUGGING, DIFLUORIDES, FLOW...
Traditional site investigations have focused on collecting both chemical concentrations and subsurface flow characteristics. These data have typically been analyzed separately, such as when chemical concentrations are compared to regulatory standards. When the two types of data are combined, it is typically for use in solute transport models. Recently there has been increased emphasis on combining chemical and flow data into a single metric to provide estimates of contaminant mass flux. This...
Topics: DTIC Archive, GSI ENVIRONMENTAL INC HOUSTON TX, *FLUX(RATE), *GROUND WATER, *MASS FLOW, SOFTWARE...
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May 23, 2011
05/11
by
Pinelli,Thomas E.; Golich, Vicki L
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eye 200
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Economists, management theorists, business strategists, and governments alike recognize knowledge as the single most important resource in today's global economy. Because of its relationship to technological progress and economic growth, many governments have taken a keen interest in knowledge; specifically its production, transfer, and use. This paper focuses on the technical report as a product for disseminating the results of aerospace research and development (R&D) and its use and...
Topics: AXISYMMETRIC FLOW, IMPELLERS, DISTORTION, SURGES, CENTRIFUGAL COMPRESSORS, UNSTEADY FLOW, ROTATING...
Molecular sink facility and 25-foot space simulator have been used to distinguish nature of exhaust plumes from nozzles with relatively large internal boundary layer flow. Plume density has been measured by electron beam/photomultiplier system.
Topics: NASA Technical Reports Server (NTRS), FLUORESCENCE, MASS FLOW, ROCKET EXHAUST, SPACE SIMULATORS,...
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291
May 23, 2011
05/11
by
Golub, Leo
texts
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The highly structured nature of the outer solar atmosphere seems to be intimately linked to the presence, at the solar surface, of magnetic fields that have been generated inside the Sun and have emerged to the surface. The corona is brightest (and also hottest) at just those locations where the magnetic field has emerged from inside the Sun. Dynamo theory predicts that strong magnetic fields will be generated deep in the solar interior and that bundles or 'ropes' of magnetic flux will float to...
Topics: BUOYANCY, ETHYLENE, MASS FLOW RATE, SOOT, DIFFUSION FLAMES, LAMINAR FLOW, GRAVITATIONAL EFFECTS,...
The effect of mass injection on the shuttle infrared leeside temperature sensing (SILTS) pod window surfaces in reducing window heating and minimizing window lens radiation during the reentry data taking period is investigated. Heat transfer coefficients on and around the simulated windows and window cavities are determined. Heat transfer rates and window coolant flow rates are reported for the SILTS configuration. A comparison of two windows' geometries and their effects on the heat transfer...
Topics: NASA Technical Reports Server (NTRS), INFRARED RADIATION, MASS FLOW, SPACE SHUTTLES, SURFACE...
This report surveys recent progress in research on modeling and inference for transient tracers on oceanic flows. The survey covers in some detail the contents of five technical reports on various aspects of this research, including a Markov process for mass transport and estimation functions for estimating flow coefficients, dissipation rates, and birth rates from chronicles of transient tracers. The details include theoretical results of independent interest that support applications to...
Topics: DTIC Archive, Phelan, Michael J, PENNSYLVANIA UNIV PHILADELPHIA, *WATER FLOW, *MASS FLOW, *OCEAN...
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May 29, 2011
05/11
by
Nahra, Henry K.; Hoffmann, Monica I.; Hussey, Sam; Bell, Kimberly R
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Generation of a uniform monodisperse bubbly suspension in low gravity is a rather difficult task because bubbles do not detach as easily as on Earth. Under microgravity, the buoyancy force is not present to detach the bubbles as they are formed from the nozzles. One way to detach the bubbles is to establish a detaching force that helps their detachment from the orifice. The drag force, established by flowing a liquid in a cross or co-flow configuration with respect to the nozzle direction,...
Topics: ANNULAR NOZZLES, NOZZLE DESIGN, NOZZLE FLOW, ANNULAR FLOW, PRESSURE GRADIENTS, SPREADING, SOUND...
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Jul 5, 2010
07/10
by
Kerslake, W. R
texts
eye 270
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No Abstract Available
Topics: AERODYNAMIC CHARACTERISTICS, ATTACK AIRCRAFT, SUPERSONIC AIRCRAFT, TRANSONIC WIND TUNNELS,...
Gaseous propellants exhibit large variations in pressure and temperature and hence in fuel delivery. All-mechanical, mass flow controller which compensates for these variations has been developed to maintain constant fuel rate of gas. Further work is necessary to ease inlet pressure limitation.
Topics: NASA Technical Reports Server (NTRS), GAS FLOW, GASEOUS ROCKET PROPELLANTS, MASS FLOW, PRESSURE...
This study sought to develop a catalytic ignition advanced torch system with a unique catalyst microtube design that could serve as a low energy alternative or redundant system for the ignition of methane and oxygen rockets. Development and testing of iterations of hardware was carried out to create a system that could operate at altitude and produce a torch. A unique design was created that initiated ignition via the catalyst and then propagated into external staged ignition. This system was...
Topics: NASA Technical Reports Server (NTRS), IGNITION SYSTEMS, ROCKET ENGINES, METHANE, OXYGEN, MASS FLOW...
It shows the variation in compressor mass flow with time as the mass flow is throttled to drive the compressor into surge. Surge begins where wide variations in mass flow occur. Air injection is then turned on to bring about a recovery from the initial surge condition and stabilize the compressor. The throttle is closed further until surge is again initiated. Air injection is increased to again recover from the surge condition and stabilize the compressor.
Topics: NASA Technical Reports Server (NTRS), CENTRIFUGAL COMPRESSORS, GAS INJECTION, SURGES, MASS FLOW,...
Current limitations in available data and computational tools have led to an on-going reliance on experimental measurements for injector design. Unfortunately, the mass flow rates typically encountered in rocket engines create sprays with high optical densities and render the vast majority of optical and laser techniques ineffective. Data has been obtainable through mechanical patternation, but the technique has limitations especially near the injector. Time-gated ballistic imaging has also...
Topics: DTIC Archive, AIR FORCE RESEARCH LAB EDWARDS AFB CA, *RADIOGRAPHY, IMAGES, INJECTORS, MASS FLOW,...
Scientific instrument catalog - Technology / Versatronics, Inc.
Topics: oxygen, controller, prices, flowmeters, tion, flow, mfg, temperature, readout, accuracy, prices...
Specific impulse is defined in words in many ways. Very early in any text on rocket propulsion a phrase similar to .specific impulse is the thrust force per unit propellant weight flow per second. will be found.(2) It is only after seeing the mathematics written down does the definition mean something physically to scientists and engineers responsible for either measuring it or using someone.s value for it.
Topics: NASA Technical Reports Server (NTRS), MASS FLOW RATE, ERRORS, PROPELLANTS, SPECIFIC IMPULSE,...
We study the disk instability and the effect of irradiation on outbursts in the black hole X-ray nova system. In both the optical and soft X-rays, the light curves of several X-ray novae, A0620-00, GH 2000+25, Nova Muscae 1991 (GS 1124-68), and GRO J0422+32, show a main peak, a phase of exponential decline, a secondary maximum or reflare, and a final bump in the late decay followed by a rapid decline. Basic disk thermal limit cycle instabilities can account for the rapid rise and overall...
Topics: NASA Technical Reports Server (NTRS), ACCRETION DISKS, BLACK HOLES (ASTRONOMY), IRRADIATION, MASS...
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May 30, 2011
05/11
by
Kurth, W. S
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The primary thrust of the effort at The University of Iowa for the definition of an orbiter mission to Mercury is a minimum viable radio and plasma wave investigation. While it is simple to add sensors and capability to any payload, the challenge is to do reasonable science within limited resources; and viable missions to Mercury are especially limited in payload mass. For a wave investigation, this is a serious concern, as the sensor mass often makes up a significant fraction of the...
Topics: MATHEMATICAL MODELS, STEADY STATE, CRYOGENICS, LIQUID FLOW, WORKING FLUIDS, HEAT TRANSFER, COOLING,...
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May 27, 2011
05/11
by
Krebs, Richard P.; Hart, Clint E
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Two rocket configurations with turbopump drive were investigated analytically. In one configuration the inlet pressure to the turbine was fixed at the design value. The second configuration employed a ''bootstrap'' technique for supplying energy to the turbine. An injector was the chief resistance between the pump and the rocket combustion chamber. From the analysis two parameters were developed from which the speed response time of the turbopump, the flow response time, and the maximum dynamic...
Topics: AERODYNAMIC COEFFICIENTS, TRANSONIC SPEED, PRESSURE RECOVERY, AERODYNAMIC DRAG, BOUNDARY LAYERS,...
This document presents the full-scale analyses of the CFD RSRM. The RSRM model was developed with a 20 second burn time. The following are presented as part of the full-scale analyses: (1) RSRM embedded inclusion analysis; (2) RSRM igniter nozzle design analysis; (3) Nozzle Joint 4 erosion anomaly; (4) RSRM full motor port slag accumulation analysis; (5) RSRM motor analysis of two-phase flow in the aft segment/submerged nozzle region; (6) Completion of 3-D Analysis of the hot air nozzle...
Topics: NASA Technical Reports Server (NTRS), BURNING TIME, SOLID PROPELLANT ROCKET ENGINES, COMBUSTION...
A new forward-swept rotor designed by Allison Engine Company was tested in NASA Lewis Research Center's CE-18 facility. This testing was a follow-on project sponsored by NASA Lewis to study range enhancements in small turbomachinery. The test was conducted against a baseline rotor design that was also tested in CE-18. The design point for the rotor was a rotor pressure ratio of 2.69, a mass flow of 10.52 lbm/sec, and an adiabatic efficiency of 89.1 percent. Test data indicate that the rotor met...
Topics: NASA Technical Reports Server (NTRS), COMPRESSORS, PRESSURE RATIO, TURBOMACHINERY, EFFICIENCY, FLOW...
