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Research & Technology 1996
Lewis Research Center
Contents
- Organizational Charts
- Senior Management
Divisions
Quality Council
- Aeropropulsion Analysis
- Combined Numerical/Analytical
Perturbation Solutions of the Navier-Stokes Equations for
Aerodynamic (Ejector Nozzle) Flows
- Instrumentation and Control Technology
- High Gas Temperature Probe
Thermal Analysis Demonstrated for a
Plug-Type Heat Flux Gauge
Reliable Breakdown Obtained in Silicon
Carbide Rectifiers
Ultraviolet Molecular Rayleigh
Scattering Used to Measure Velocity in High-Speed Flow
Chaotic Time Series Analysis Method
Developed for Stall Precursor Identification in High-Speed Compressors
Controls/CFD Interdisciplinary Research
Software Generates Low-Order Linear Models for Control Design From
Steady-State CFD Results
Single-Lever Power Control for General
Aviation Aircraft Promises Improved Efficiency and Simplified Pilot
Controls
- Internal Fluid Mechanics
- National Combustion Code: A Multidisciplinary
Combustor Design System
Interactive Educational Tool for Turbofan and
Afterburning Turbojet Engines
Rotor-Stator Interaction Performance Effects
Stator Indexing in Multistage Compressors
Bleed Hole Flow Phenomena Studied
Internal Mixing Studied for GE/ARL Ejector Nozzle
- Propulsion Systems
- High-Pressure Combustion Testing
Reveals Promise of Low-Emission Combustors for Advanced Subsonic
Gas Turbines
Computational Fluid Dynamics Analysis
Method Developed for Rocket-Based Combined Cycle Engine Inlet
Fluidic Injection for Throat-Area Control
and Thrust Vectoring
Oscillating Cascade Aerodynamics at Large
Mean Incidence Angles
SWIFT: Multistage Turbomachinery Analysis
Code Developed
Effects of Rotor Wake on Film Cooling
Investigated
Forward Swept Compressor Testing
Low Pressure Turbine Flow Physics Program
Vacuum Cleaner Fan Being Improved
Acoustic Barrier Facilitates Inlet Noise Measurements
for Aft-Dominated Fans
- Aeropropulsion Facilities and Experiments
- Scale Model Icing Research Tunnel
Supersonic Wind Tunnel Capabilities Expanded
Into Subsonic Region
- Interdisciplinary Technology Office
- pV3-Gold Visualization Environment for Computer
Simulations
Steady-State Cycle Deck Launcher Developed
for Numerical Propulsion System Simulation
Configuration Management File Manager
Developed for Numerical Propulsion System Simulation
Portable Extensible Viewer
Visual Computing Environment
A Vision in Aeronautics--The K-12 Wind Tunnel
Project
Flow Analysis of a Gas Turbine Low-Pressure
Subsystem
- Materials
- Advanced High-Temperature Engine Materials
Technology Progresses
Natural Strain
BFS Method for Alloys Optimized and
Verified for the Study of Ordered Intermetallic Materials
Orthorhombic Titanium Matrix Composite
Subjected to Simulated Engine Mission Cycles
Development of Creep-Resistant NiAl(Ti,Hf)
Single-Crystal Alloys
Oxygen Compatibility Screening Tests in
Oxygen-Rich Combustion Environment
Alternative Processing Method Leads to
Stronger Sapphire-Reinforced Alumina Composites
Single-Tow Minicomposite Test Used to
Determine the Stressed-Oxidation Durability of
SiC/SiC Composites
First Single-Crystal Mullite Fibers
Method for Efficient Joining of Silicon
Carbide-Based Ceramic Materials Developed
Unique Tuft Test Facility Dramatically
Reduces Brush Seal Development Costs
Ion Implantation of
Perfluoropolyether-Lubricated Surfaces for Improved Tribological
Performance
Test Method Designed to Evaluate Cylinder
Liner-Piston Ring Coatings for Advanced Heat Engines
Compressor Case Manufactured Using
High-Temperature Polyimides
An Oxidation-Resistant Coating Alloy for Gamma
Titanium Aluminides
Environmental Studies on Titanium Aluminide
Alloys
Volatile Reaction Products From
Silicon-Based Ceramics in Combustion Environments Identified
Oxidation Resistance and Critical Sulfur
Content of Single-Crystal Superalloys
- Structures
- Probabilistic Thermomechanical Fatigue
of Polymer Matrix Composites
T/Best: Technology Benefit Estimator for Selecting
Features and Applications
Effect of Cyclic Thermal Loads on
Fatigue Reliability in Polymer Matrix Composites
ICAN Computer Code Adapted for Building
Materials
Micromechanical Modeling Efforts for
Advanced Composites
COMETBOARDS Can Optimize Performance
of Wave-Rotor-Topped Gas Turbine Engine
Transient Finite Element Analyses
Developed to Model Fan Containment Impact Events
High-Temperature Adhesive Strain Gage
Developed
Novel Multidisciplinary Models Assess
the Capabilities of Smart Structures to Manage Vibration, Sound,
and Thermal Distortion in Aeropropulsion Components
EPM Structural Component Successfully
Tested Under Pseudo-Operating Conditions
Retirement for Cause as an Alternate
Means of Managing Component Lives
Model Determined for Predicting
Fatigue Lives of Metal Matrix Composites Under Mean Stresses
Oxidation Embrittlement Observed in SiC/SiC
Composites
TURBO-AE: An Aeroelastic Code for Propulsion
Applications
Rotordynamics on the PC: Transient Analysis
With ARDS
Space Mechanisms Lessons Learned and
Accelerated Testing Studies
More-Electric Gas Turbine Engines
Measurement of Gust Response on a Turbine
Cascade
Fan Blade Deflection Measurement and
Analyses Correlation
Feasibility of Rope Seal Technology
Demonstrated for an Industrial Application
X-Ray Computed Tomography Monitors
Damage in Composites
Stress Intensity Factor Solutions for
Multiple Edge Cracks In Ceramic Matrix Composites
Award-winning CARES/Life Ceramics
Durability Evaluation Software Making Advanced Technology Accessible
Capability of Thermographic Imaging
Defined for Detection in High-Temperature Composite Materials
- Space Propulsion Technology
- Rocket Engine Numerical Simulator (RENS)
Ablative Material Testing at Lewis Rocket Lab
Real-Time Sensor Validation System
Developed for Reusable Launch Vehicle Testbed
Demonstration of Oxygen and Carbon Monoxide Propellants
for Mars Missions
Metallized Gelled Propellant Heat
Transfer Tests Analyzed
Fuels and Space Propellants for Reusable
Launch Vehicles: A Small Business Innovation Research Topic and Its
Commercial Vision
Electric Propulsion
On-Board Chemical Propulsion
Gas Wave Bearings: A Stable Alternative
to Journal Bearings for High-Speed Oil-Free Machines
- Power Technology
- SCARLET Photovoltaic Concentrator Array
Selected for Flight Under NASA’s New Millennium Program
Thermophotovoltaic Cell Technology
Transferred to the Department of Energy Laboratory and a Commercial
Manufacturer
Balloon Fuel Cell Power System
Lithium Ion Batteries
High Capacity Battery Cell Flight
Qualified
NASA Flywheel Program
Investigation of Teflon FEP Embrittlement
on Spacecraft in Low-Earth Orbit
Cryogenic Electronics in Support of
Deep-Space Missions
New Electromagnetic Interference
Shielding Material Demonstrated
High-Temperature Passive Power
Electronics
Protective Coating Enhances the Durability of Retroreflectors for the International Space
Station
- Space Electronics
- High-Power, High-Temperature
Superconductor Technology Development
Digital Audio Radio Field
Tests
Lewis Investigates Frequency Sharing
Between Future NASA Space Systems and Local Multipoint
Distribution Systems in the 27-GHz Band
Computer Simulation of Microwave
Devices
High-Temperature
Superconducting/Ferroelectric Structures for Tunable Microwave
Components
Miniaturized High-Temperature
Superconducting/Dielectric Multilayer Filters for Satellite
Communications
Root-Raised Cosine Filter
Implementation That Uses Canonical Signed Digits for
High-Speed Digital Filter Applications
- Space Experiments
- Shuttle Fire Tests Are Radiant
Comparative Soot Diagnostics Experiment
Looks at the Smoky World of Microgravity Combustion
Pool Boiling Experiment Has Five Successful
Flights
Colloidal Disorder-Order Transition
Experiment Probes Particle Interactions in Microgravity
Surface Tension Driven Convection
Experiment Completed
Isothermal Dendritic Growth Experiment
(IDGE) Is the First United States Microgravity Experiment
Controlled From the Principal Investigator's University
Smoldering News From STS-77 Endeavour
Facilitating Science--The International
Space Station Fluids and Combustion Facility
Burning Candles in the Microgravity of Space
Measured Success--The Microgravity
Measurement and Analysis Project
- Power Systems
- Mir Cooperative Solar Array
Advanced Power System Analysis Capabilities
Dark Forward Electrical Testing of the Mir
Cooperative Solar Array
Stability of Large Direct-Current Power
Systems That Use Switching Converters and the Application of
Switching Converters to the International Space Station
Hybrid Turbine Electric Vehicle
Computational Support
- Integrated Digital Video and
Experimental Data Analysis for Microgravity Combustion Experiment
Automated Status Notification System
- Engineering Support
- Wavelet Methods Developed to Detect and
Control Compressor Stall
Manipulating Liquids With Acoustic Radiation
Pressure
Nonlinear Dynamic Behavior in the Cassini
Spacecraft Modal Survey
- Turbomachinery Flows Modeled
New Theoretical Technique for Alloy Design
Thermal Radiation Effects Analyzed in
Translucent Composite and Thermal Barrier Coating
- Lewis Business and Industry Summit
Innovative Ultrasonic Imaging Method
Wins R&D 100 Award
Lewis-Developed Ion Exchange Material
Licensed to Several Companies
Lewis Incubator for Technology
- NASA Headquarters Program Offices
Index of Authors and Contacts
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Last updated May 1, 1997
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