PDF Publication Title:
Text from PDF Page: 127
1992 when NASA and MDA discussed possible icing programs of mutual interest, the three-element wing design was a natural candidate for investigation.10 MDA designed and fabricated a model of the three-element wing specifically for vertical installation in the IRT. It consisted of a slat with a hot-air de-icing system, a main element assembly, and a large-chord single-segment flap. Tests began in the summer of 1993 under the direction of project leader Jaiwon Shin. They revealed that the slat reacted to icing much like the leading edge of a single-element airfoil, whereas the main element assembly and flap were much less sensitive. Also, the entire lower surface of the flap accreted ice under all icing conditions, with signifi- cant buildups on the trailing edge in most cases. Finally, the gaps between the elements did not suffer any ice contamination for the icing conditions and flap set- tings used in the tests.11 Alan Kehlet, vice president for advanced program and technology/transport air- craft at MDA, considered the tests “very productive.” The quality and amount of data that had been collected, he wrote to NASA, “is due in large part to the working relationship established between the NASA team and McDonnell Douglas per- sonnel, and the quality support received from the NASA engineers and technicians involved in this test.”12 Additional testing took place in the summer of 1994 to add to the database on the three-element system and to explore at greater length the possible effects of gap sizes. In some 177 icing runs, Shin and his team found that slat-ice accretion was more sensitive to angle- of-attack changes than the main element or flap. Also, changing flap settings had a smaller effect on ice accretion than did changing the angle of attack. Work in the IRT ended at this point; although, additional experiments were performed in Langley’s Low-Turbulence Pressure Tunnel using ice shapes that had been generated during the IRT tests.13 NASA’s cooperation with McDonnell Douglas and Boeing were the types of devel- opmental programs that generated a good deal of favorable publicity for the space agency. Unlike the pre-1958 era, the post-1978 years saw far more time devoted to this kind of program than to more basic research. By early 1990s, with the IRT in use over 1,000 Full Speed Ahead 10 Reinmann, “Cooperative NASA/Industry/Agency/University Programs,” NASA-Industry Workshop on Aircraft Icing, NASA Lewis Research Center, 27–29 July 1993. 11 Dean Miller, Jaiwon Shin, and David Sheldon (NASA); Abdolah Khodadoust and Peter Wilcox (MDA); and Tammy Langhals (NYMA, Inc.), “Further Investigations of Icing Effects on an Advanced High-Lift Multi- Element Airfoil,” NASA TM 106947 (1995). 12 Lewis News, 12 August 1994. 13 Ibid.; Miller, et al., NASA TM 106947. 115PDF Image | History of NASA Icing Research Tunnel
PDF Search Title:
History of NASA Icing Research TunnelOriginal File Name Searched:
sp4226.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)