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E-10948 Spine & Cover Layout About the cover: Left: Mars Pathfinder Sojourner rover showing Lewis’ Wheel Abrasion Experiment (p. 31) on a special section of the center wheel. This experiment measured abrasion to analyze the consistency of the Martian soil. Two other Lewis experiments were conducted on the Sojourner rover: electrostatic charging experi- ments (p. 32), which measured the accumulation of static charge, and the Materials Adherence Experi- ment, which measured dust accumulation (p. 34) to assess its potential interference on solar panels. In addition, Lewis helped test the air-bag landing system for the Mars Pathfinder, modeled solar energy on Mars to determine solar panel requirements, and provided tungsten points for removing potentially damaging electrostatic charge from the rover. Visit Lewis on the World Wide Web to find out more about our involvement in the Mars Pathfinder mission (http://www.lerc.nasa.gov/WWW/PAO/html/ marspath.htm). Top right: Joint Strike Fighter model installed in Lewis’ 8- by 6-Foot Supersonic Wind Tunnel (p. 87). Bottom right: Astronaut crew training performed onboard Lewis’ DC–9 aircraft (p. 134) in preparation for the Microgravity Science Laboratory missions flown on the Space Shuttle Columbia in April and July of 1997. Research & Technology 1997 National Aeronautics and Space Administration Lewis Research Center Cleveland, Ohio 44135 NASA/TM—1998-206312 Trade names or manufacturers' names are used in this report for identification only. This usage does not constitute an official endorsement, either expressed or implied, by the National Aeronautics and Space Administration. Available from NASA Center for Aerospace Information National Technical Information Service Parkway Center 5287 Port Royal Road 7121 Standard Drive Springfield, VA 22100 Hanover, MD 21076-1320 Price Code: A08 Introduction NASA Lewis Research Center is responsible for developing and transferring critical technologies that address national priorities in aeropropulsion and space applications in part- nership with U.S. industries, universities, and Government institutions. As NASA’s designated Lead Center for Aeropropulsion, our role is to develop, verify, and transfer aeropropulsion tech- ologies to U.S. industry. As NASA’s designated Center of Excellence in Turbomachinery, our role is to develop new and innovative turbomachinery technology to improve the reliability, performance, efficiency and affordability, capacity, and environmental compatibility of future aerospace vehicles. We also maintain a science and technology development role in aeropropulsion, communications, space power and onboard propulsion, and microgravity fluid physics and combustion. We are committed to enabling nonaerospace U.S. industries to benefit directly from the technologies developed through our programs to maximize the benefit to the Nation and the return on each taxpayer’s investment. In addition, we are aggressively pursuing continuous improvement in our management and business practices and striving for diversity in our workforce as together we push the edge of technology in space and aeronautics. The Lewis Research Center is a unique facility located in an important geographical area, the southwest corner of Cleveland, Ohio. Situated on 350 acres of land adjacent to the Cleveland Hopkins International Airport, Lewis comprises more than 140 buildings that include 24 major facilities and over 500 specialized research and test facilities. Additional facilities are located at Plum Brook Station, which is about 50 miles west of Cleveland. Over 3700 people staff Lewis, including civil service employees and support service contractors. Over half of them are scientists and engineers, who plan, conduct or oversee, and report on our research tasks and projects. They are assisted by technical specialists, skilled workers, and an administrative staff. Our end product is knowledge. This report is designed to help us make this knowledge fully available to potential users—the aircraft engine industry, the energy industry, the automotive industry, the aerospace industry, and others. It is organized so that a broad cross section of the community can readily use it. Each article begins with a short introductory paragraph that should prove to be a valuable tool for the layperson. These articles summarize the progress made during the year in various technical areas and portray the technical and administrative support associated with Lewis’ technology programs. We hope that the information is useful to all. If additional information is desired, readers are encouraged to contact the researchers identified in the articles and to visit Lewis on the World Wide Web (http://www.lerc.nasa.gov/). This document is available on the World Wide Web (http://www.lerc.nasa.gov/WWW/RT). Donald J. Campbell Director iii NASA Lewis Research Center Senior Management Director Deputy Director Deputy Director Chief for Operations Scientist Donald J. Campbell Martin P. Kress Julian M. Earls Marvin E. Goldstein Office of the Office of Safety, Chief Counsel Environmental, and Mission Assurance J. William Sikora Vernon W. Wessel iv Aeropropulsion Plans and Office of Equal Chief Financial Office of Human Office of Acquistion Research Program Office Programs Office Opportunity Programs Officer Resources Paul L. Burstadt Olga D. Gonzalez-Sanabria Belinda M. Roberts Robert E. Fails Maury L. Blanton Julian M. Earls* Aeronautics Research and Space Engineering and External Technology Technical Services Programs Carol J. Russo Larry A. Diehl Gerald J. Barna Joseph A. Yuska John M. Hairston, Jr. *Acting CD-48534 December 1997 NASA Lewis Research Center Director Deputy Director Deputy Director for Operations Chief Scientist 0100 Office of Office of Safety, Environmental The Chief Counsel and Mission Assurance 0120 0500 Project Quality Institutional Environmental Security Assurance Management Safety Management Management Office Office Office Office Office 0510 0520 0530 0540 0550 Inspector General Army Office 0160 0300 v Aeropropulsion Research Plans and Programs Office of Chief Financial Officer Office of Office of Program Office Office Equal Opportunity Human Resources Acquisition 0140 0170 0180 0200 0400 0600 Special Hypersonics Resources Financial Procurement Logistics Projects Projects Analysis and Management Division and Technical Office Office Management Division Information Office Division 0141 0142 0210 0220 0610 0620 Office Aeronautics Directorate Research and Technology of Space Directorate Engineering and Technical External Programs University Directorate Programs Services Directorate Directorate 2000 5000 5010 6000 7000 9000 Subsonic High-Speed Materials Power and On-Board Instrumentation Space Launch Vehicle and Plum Brook Aircraft Computer Educational Community Commercial Systems Systems Division Propulsion and Controls Communications Transportation Management Operations Services Program and Media Technology Office Office Technology Division Office Projects Office Office Division Office Relations Office Division Office Office 2200 2300 5100 5400 5500 6100 6500 7030 7040 7100 9200 9300 9400 Propulsion Computing Communications Turbomachinery Structures Microgravity Power Test Manufacturing Facilities Systems and Interdisciplinary Technology and Propulsion and Acoustics Science and Propulsion Installations Engineering and Test Analysis Systems Division Systems Division Division Office Division Division Engineering Office Office Division Division 2400 2900 5600 5800 5900 6700 6900 7200 7400 7500 Engineering Systems Design Engineering and Analysis Division Division Est. 10-1-96 7700 7800 CD-44972 Rev. 3-3-97 Gerald J. Barna Guion B. Bluford Director of Space Support Service Contractor Liaison Joseph A. Yuska Director of Engineering and Technical Services Donald J. Campbell Director Dennis M. Sender Special Assistant to the Quality Council Virginia A. Cantwell President LESA Carol J. Russo Director of Aeronautics Quality Larry A. Diehl Director of Research vi Council and Technology Martin P. Kress Deputy Director Julian M. Earls Deputy Director for Operations NO PHOTO AVAILABLE Larry C. Kalb President AFGE Robert E. Fails Chief Financial Officer John M. Hairston, Jr. Marvin E. Goldstein Director of External Programs Chief Scientist The Quality Council was established in October 1992 to adopt and implement a Total Quality (TQ) plan for Lewis. It is composed of Executive Council members as well as the president of the American Federation of Government Employees (AFGE), Local 2812, and the president of the Lewis Engineers and Scientists Association (LESA), IFPTE Local 28. A representative of major onsite support service contractors serves as a liaison. January 1998 Contents Aeronautics High Speed Systems High Speed Research—Propulsion Project Accomplishments . 2 Propulsion Systems Analysis Minimum Climb to Cruise Noise Trajectories Modeled for the High Speed Civil Transport . 3 Inlet Performance Analysis Code Developed . 4 Conceptual Design Method Developed for Advanced Propulsion Nozzles . 5 Computing and Interdisciplinary Systems Multiphysics Code Demonstrated for Propulsion Applications . 6 Flow of a Gas Turbine Engine Low-Pressure Subsystem Simulated . 8 Research and Technology Materials Assessing the Resistance of γ-Ti-47Al-2Nb-2Cr (at.%) to Foreign Object Damage . 12 Strengthening Precipitate Morphologies Fully Quantified in Advanced Disk Superalloys . 13 High-Temperature Compressor Material Development . 15 Method Developed for the High-Temperature Nondestructive Evaluation of Fiber-Reinforced Silicon
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