Download or read book Cost Effective Use of Liquid Nitrogen in Cryogenic Wind Tunnels written by and published by . This book was released on 1987 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cost effective Use of Liquid Nitrogen in Cryogenic Wind Tunnels Phase 2 written by and published by . This book was released on 1990 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cryogenic Wind Tunnels A Comprehensive Annotated Bibliography written by Marie H. Tuttle and published by . This book was released on 1991 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cost Effective Use of Liquid Nitrogen in Cryogenic Wind Tunnels Phase 2 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cryogenic seal tests were performed and Rulon A was selected for the subject nutating positive displacement expander. A four-chamber expander was designed and fabricated. A nitrogen reliquefier flow system was also designed and constructed for testing the cold expander. Initial tests were unsatisfactory because of high internal friction attributed to nutating Rulon inlet and outlet valve plates. Replacement of the nutating valves with cam-actuated poppet valves improved performance. However, no net nitrogen reliquefaction was achieved due to high internal friction. Computer software was developed for accurate calculation of nitrogen reliquefaction from a system such as that proposed. These calculations indicated that practical reliquefaction rates of 15 to 19 percent could be obtained. Due to mechanical problems, the nutating expander did not demonstrate its feasibility nor that of the system. It was concluded that redesign and testing of a smaller nutating expander was required to prove concept feasibility. Mcintosh, Glen E. and Lombard, David S. and Leonard, Kenneth R. and Morhorst, Gerald D. Unspecified Center...

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1991 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cryogenic Wind Tunnels written by Marie H. Tuttle and published by . This book was released on 1987 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Airborne Lidar Experiments at the Savannah River Plant written by William B. Krabill and published by . This book was released on 1987 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Reynolds Number Flows Using Liquid and Gaseous Helium written by Russell J. Donnelly and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid helium has been studied for its intrinsic interest through much of the 20th century. In the past decade, much has been learned about heat transfer in liquid helium because of the need to cool superconducting magnets and other devices. The topic of the Seventh Oregon Conference on Low Temperature Physics was an applied one, namely the use of liquid and gaseous helium to generate high Reynolds number flows. The low kinematic viscosity of liquid helium automatically makes high Reynolds numbers accessible and the question addressed in this conference was to explore various possibilities to see what practical devices might be built using liquid or gaseous helium. There are a number of possibilities: construction of a wind tunnel using critical helium gas, free surface testing, low speed flow facilities using helium I and helium ll. At the time of the conference, most consideration had been given to the last possibility because it seemed both possible and useful to build a flow facility which could reach unprecedented Reynolds numbers. Such a device could be useful in pure research for studying turbulence, and in applied research for testing models much as is done in a water tunnel. In order to examine these possibilities in detail, we invited a wide range of experts to Eugene in October 1989 to present papers on their own specialties and to listen to presentations on the liquid helium proposals.

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1994 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cryogenic Wind Tunnels written by Marie H. Tuttle and published by . This book was released on 1985 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Authorization for Fiscal Year 1977 written by United States. Congress. Senate. Committee on Aeronautical and Space Sciences and published by . This book was released on 1976 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1977 NASA Authorization written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Space Science and Applications and published by . This book was released on 1975 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1977 NASA Authorization written by United States. Congress. House. Committee on Science and Technology and published by . This book was released on 1977 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1977 ERDA authorization fossil fuels written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Energy Research, Development, and Demonstration (Fossil Fuels) and published by . This book was released on 1976 with total page 3192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Description of the Insulation System for the Langley 0 3 meter Transonic Cryogenic Tunnel written by Pierce L. Lawing and published by . This book was released on 1985 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: