Organizational Charts
Senior Management
Divisions
Quality Council
Advanced Subsonic Technology
Advanced Subsonic Combustion Rig Developed
Aeropropulsion Analysis
Performance of Gas Turbine Engines Using Wave Rotors Modeled
Instrumentation and Control Technology
High-Temperature, Thin-Film Strain Gages Improved
Silicon Carbide High-Temperature Power Rectifiers Fabricated and Characterized
Automated Hydrogen Gas Leak Detection System
Fuzzy Logic Particle Tracking
Fiber Optic Repair and Maintainability (FORM) Program Progresses
Transient Wave Rotor Performance Investigated
Concept Designed and Developed for Distortion-Tolerant, High-Stability Engine Control
Internal Fluid Mechanics
Coupled Monte Carlo Probability Density Function/SPRAY/CFD Code
Developed for Modeling Gas-Turbine Combustor Flows
CFD-Based Design Optimization Tool Developed for Subsonic Inlet
User Interface Developed for Controls/CFD Interdisciplinary Research
Wavelet Techniques Applied to Modeling Transitional/Turbulent Flows in Turbomachinery
Effect of Shrouded Stator Leakage Flows on Core Compressor Studied
Stable Lobed Mixer With Combustion Demonstrated and Measured
Effect of Tabs on a Rectangular Nozzle Studied
Propulsion Systems
Spherical Joint Piston and Connecting Rod Developed
Mach 6 Integrated Systems Tests of Lewis' Hypersonic Tunnel Facility
Capabilities Enhanced for Researching the Reduction of Emissions in Future Aircraft
Aircraft Ice Accretion Due to Large-Droplet Icing Clouds
Shape-Memory-Alloy-Based Deicing System Developed
Laser Sheet Flow Visualization Developed for Lewis' Icing Research Tunnel
Gear Crack Propagation Investigation
Study of Gear Dynamic Forces Completed
Code to Optimize Load Sharing of Split-Torque Transmissions Applied to the Comanche Helicopter
Face Gear Technology for Aerospace Power Transmission Progresses
Advanced Short Takeoff and Vertical Landing (ASTOVL) Concepts Tested
NPARC Code Upgraded With Two-Equation Turbulence Models
Mixing Process in Ejector Nozzles Studied at Lewis' Aero-Acoustic Propulsion Laboratory
F119 Nozzle Flaps Tested at Lewis' CE-22 Facility
Prediction Capability for Transonic Nozzle Afterbodies Improved
Thin-Film Thermocouple Technology Demonstrated for Reliable Heat Transfer Measurements
Effect of Brush Seals on Wave Rotor Performance Assessed
Scale-Model, Low-Tip-Speed Turbofan Tested at Simulated Takeoff and Approach Conditions
First Test of Fan Active Noise Control (ANC) Completed
Subsonic Jet Noise Reduced With Improved Internal Exhaust Gas Mixers
Aeropropulsion Facilities and Experiments
Drive Motor Improved for 8- by 6-Foot Supersonic Wind Tunnel/9- by 15-Foot Low-Speed Wind Tunnel Complex
Testing Efficiency Improved by Addition of Remote Access Control Room
Interdisciplinary Technology Office
Lewis/ACTS/Boeing Experiment Demonstrates Gigabit Application Using ACTS
Heart Pump Design for Cleveland Clinic Foundation
Coupled Aerodynamic-Thermal-Structural (CATS) Analysis
NASA Lewis IITA Kindergarten to 12th Grade Program
Materials
Advanced High Temperature Engine Materials Technology Progresses
Stereo Imaging Velocimetry
Source of Scatter in the Creep Lives of NiAl(Hf) Single Crystals Revealed
Creep Testing of High-Temperature Cu-8 Cr-4 Nb Alloy Completed
Ceramic Composites Used in High-Speed Turbines for Rocket Engines
Affordable Fiber-Reinforced Ceramic Composites Win 1995 R&D 100 Award
Thermomechanical Property Data Base Developed for Ceramic Fibers
Silicon Carbide Epitaxial Films Studied by Atomic Force Microscopy
Self-Lubricating, Wear-Resistant Diamond Films Developed for Use in Vacuum Environment
Lubricous Deposit Formed In Situ Between Wearing Surfaces at High Temperatures
DMBZ Polyimides Provide an Alternative to PMR-15 for High-Temperature Applications
Low-Cost Resin Transfer Molding Process Developed for High-Temperature Polyimide Matrix Composites
Nuclear Magnetic Resonance Used
to Quantify the Effect of Pyrolysis Conditions on the Oxidative
Stability of Silicon Oxycarbide Ceramics
Thermochemical Degradation Mechanisms for Reinforced Carbon/Carbon Panels on the Space Shuttle
Structures
Cascade Optimization Strategy Maximizes Thrust for High-Speed Civil Transport Propulsion System Concept
Impact Properties of Metal Fan Containment Materials Being Evaluated for the High- Speed Civil Transport (HSCT)
Active Piezoelectric Structures for Tip Clearance Management Assessed
Microalloying Improves the Low-Cycle Fatigue Behavior of Powder-Extruded NiAl
Effects of Control Mode and R-Ratio on the Fatigue Behavior of a Metal Matrix Composite
Thermomechanical Fatigue Behavior of Coated and Uncoated Enhanced SiC/SiC Studied
Micromechanics Analysis Code (MAC) Developed
Fully Associative, Nonisothermal, Potential-Based Unified Viscoplastic Model for Titanium-Based Matrices
Thermal and Structural Analysis Conducted on Hollow-Core Turbine Blade of the Space Shuttle Main Engine
Thermomechanical Multiaxial Fatigue Testing Capability Developed
Fatigue Behavior and Deformation Mechanisms in Inconel 718 Superalloy Investigated
High-Temperature Extensometry and PdCr Temperature-Compensated Wire Resistance Strain Gages ComparedTemperature-Dependent Effects
on the Mechanical Behavior and Deformation Substructure of Haynes
188 Under Low-Cycle Fatigue
New Method Developed for Aeroelastic Stability Analysis
High-Temperature Magnetic Bearings for Gas Turbine Engines
Lewis-Developed Seals Serve General Electric Technology Needs
Lewis' Ultrasonic Imaging Technology Helps American Manufacturer of Nondestructive Evaluation Equipment
Become More Competitive in the Global Market
Integrated Design Software Predicts the Creep Life of Monolithic Ceramic Components
Methodology Developed for Modeling the Fatigue Crack Growth Behavior of Single- Crystal, Nickel-Base Superalloys
Space Propulsion Technology
Three Phases of Low-Cost Rocket Engine Demonstration Program Completed
High-Aspect-Ratio Cooling Channel Concept Tested in Lewis' Rocket Engine Test Facility
Fluid Film Bearing Code Development
Cooperative Testing of Rocket Injectors That Use Gaseous Oxygen and Hydrogen
Lessons Learned With Metallized Gelled Propellants
1025:1 Area Ratio Nozzle Evaluated at High Combustion Chamber Pressures
Diagnostics Adapted for Heat-Treating Furnace Environment
Rhenium Rocket Manufacturing Technology
NSTAR Ion Propulsion System Power Electronics
Pulsed Plasma Thruster Technology
Thermodynamic Vent System Applied as Propellant Delivery System for Air Force
Power Technology
SCARLET Solar Array Delivered for METEOR Mission
Valuable Data Provided by PASP Plus Flight Experiment After 1 Year in Orbit
Separator Materials Used in Secondary Alkaline Batteries Characterized and Evaluated
Regenerative Fuel Cell System Testbed Program for Government and Commercial Applications
Power-by-Wire Development and Demonstration for Subsonic Civil Transport
Advanced Power Regulator Developed for Spacecraft
SAMPIE Measurements of the Space Station Plasma Current Analyzed
Molecular Dynamics Calculations
Mars Pathfinder: The Wheel Abrasion Experiment
EWB: The Environment WorkBench Version 4.0
Protective, Abrasion-Resistant Coatings With Tailorable Properties
Technique to Predict Ultraviolet Radiation Embrittlement of Polymers in Space
Transparent, Conductive Coatings Developed for Arc-Proof Solar Arrays
Radiation Protection of New Lightweight Electromagnetic Interference Shielding Materials Determined
Silicone Contamination Camera for Developed for Shuttle Payloads
Iron-Containing Carbon Materials Fabricated
Passive Optical Sample Assembly (POSA-2) Space Flight Experiment
Aperture Shield Materials Characterized and Selected for Solar Dynamic Space Power System
Atomic-Oxygen-Durable Microsheet Glass Reflector
Environmental Influence of Gravity and Pressure on Arc Tracking of Insulated Wires Investigated
Experimental Results From the Thermal Energy Storage-1 (TES-1) Flight Experiment
2-kW Solar Dynamic Space Power System Tested in Lewis' Thermal Vacuum Facility
Space Electronics
Digital Audio Radio Broadcast Systems Laboratory Testing Nearly Complete
Role of Communications Satellites in the National and Global Information Infrastructure
Lewis Helps Examine Feasibility of Fixed Satellite Service and Local Multipoint Distribution Service Sharing the Same Frequency Band
Potential Market for Satellite Technology in Meeting Telecommunication Needs of Developing Nations
Highly Efficient Amplifier for Ka-Band Communications
Chemical Vapor-Deposited (CVD) Diamond Films for Electronic Applications
Monolithic Microwave Integrated Circuit (MMIC) Phased Array Demonstrated With ACTS
B-ISBN Onboard Processing Fast Packet Switch Developed
Low-Complexity, Digital Encoder/Modulator Developed for High-Data-Rate Satellite B- ISDN Applications
Multichannel Error Correction Code Decoder
INTEX Ka-Band Experiment Ground Terminal
Telemammography Using Satellite Communications
ACTS Project
Compilation and Analysis of 20- and 30-GHz Rain Fade Events
at the ACTS NASA Ground Station: Statistics and Model Assessment
Using the ACTS Rain Attenuation Prediction Model
to Identify and Specify Communications System Performance Parameters
Implications of ACTS Technology on the Requirements of Rain Attenuation Modeling
for Communication System Specification and Analysis at the Ka-Band
and Beyond
ACTS Aeronautical Terminal Experiment (AERO-X)
Advanced Communication Technology Satellite (ACTS) Multibeam Antenna On-Orbit Performance
Space Experiments
Radiative Ignition and the Transition to Flame Spread Investigated
in the Japan Microgravity Center's 10-sec Drop Shaft
Soot Imaging and Measurement
Microgravity Turbulent Gas-Jet Diffusion Flames
Spread Across Liquids: The World's First Microgravity Combustion Experiment on a Sounding Rocket
Two U.S. Experiments to Fly Aboard European Spacelab Facility in 1996
Interface Configuration Experiments (ICE) Explore the Effects of Microgravity on Fluids
Combustion Module 1: Spacelab Racks Integrated at the Lewis Research Center for the First Time
Pool Boiling Experiment Has Successful Flights
Successful Isothermal Dendritic Growth Experiment (IDGE)
Proves Current Theories of Dendritic Solidification are Flawed
Microgravity Smoldering Combustion Takes Flight
Solid Surface Combustion Experiment Completes a Series of Eight Successful Flights
New Low-Gravity Research Aircraft Takes to the Skies
Real-Time Data From the Orbital Acceleration Research Experiment (OARE)
Microgravity Environment Measured During Shuttle-Mir Science Program
Advanced Space Analysis
Lewis Mars Pathfinder Microrover Experiments
TEMPEST: Twin Electric Magnetospheric
Probes Exploring on Spiral Trajectories--A Proposal to the Medium
Class Explorer Program
Power Systems Project Office
Analysis of Shadowing Effects on Spacecraft Power Systems
Analysis of Solar Receiver Flux Distributions for
U.S./Russian Solar Dynamic System Demonstration on the MIR Space
Station
Structural Systems
Improved Acoustic Blanket Developed and Tested
MSC/NASTRAN DMAP Alter Used for
Closed-Form Static Analysis With Inertia Relief and Displacement-Dependent
Loads
Turbomachinery Flows Modeled
Mixing and Transition Control Studied
Transient Analysis Used to Study Thermal Radiation Effects in Single and Composite Semitransparent Layers
New Theoretical Technique Developed for Predicting the Stability of Alloys
CARES/LIFE Software Commercialization
Combustion Technology Outreach
Technology Transferred to the Kirby Company
Flow Visualization Proposed for Vacuum Cleaner Nozzle Designs
CommTech: The Commercial Technology Consultants Program
NASA Headquarters Program Offices
Index of Authors and Contacts
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Last updated April 26, 1996
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