+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + Publication Year + Availability Options + Item/Media Type Selected Navigations: Author > Perkins, Edward W [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 22 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 3 Next  Experimental investigation of the effects of viscosity on the drag and base pressure of bodies of revolution at a Mach number 1.5 Author(s): Chapman, Dean R; Perkins, Edward W Abstract: Models were tested to evaluate effects of Reynolds number for both laminar and turbulent boundary layers. Principal geometric variables investigated were afterbody shape and length-diameter ratio. Force tests and ... NASA Center: Ames Research Center Publication Year: 1951 Added to NTRS: 2009-01-14 Accession Number: 93R20381; Document ID: 19930091091; Report Number: NACA-TR-1036 Investigation of the drag of various axially symmetric nose shapes of fineness ratio 3 for Mach numbers from 1.24 to 7.4 Author(s): Perkins, Edward W; Jorgensen, Leland H; Sommer, Simon C Abstract: Experimental drag measurements at zero angle of attack for various theoretical minimum drag nose shapes, hemispherically blunted cones, and other more common profiles of fineness ratios of about 3 are compared with ... NASA Center: Ames Research Center Publication Year: 1958 Added to NTRS: 2009-01-14 Accession Number: 93R20312; Document ID: 19930091022; Report Number: NACA-TR-1386 A study of effects of viscosity on flow over slender inclined bodies of revolution Author(s): Allen, H Julian; Perkins, Edward W Abstract: The observed flow field about slender inclined bodies of revolution is compared with the calculated characteristics based upon potential theory. The comparison is instructive in indicating the manner in which the effects of ... NASA Center: Ames Research Center Publication Year: 1951 Added to NTRS: 2009-01-14 Accession Number: 93R20252; Document ID: 19930090962; Report Number: NACA-TR-1048 Investigation of some wake vortex characteristics of an inclined ogive-cylinder body at Mach number 2 Author(s): Jorgensen, Leland H; Perkins, Edward W Abstract: For a body consisting of a fineness-ratio-3 ogival nose tangent to a cylindrical afterbody 7.3 diameters long, pitot-pressure distributions in the flow field, pressure distributions over the body, and downwash distributions ... NASA Center: Ames Research Center Publication Year: 1958 Added to NTRS: 2009-01-14 Accession Number: 93R20308; Document ID: 19930091018; Report Number: NACA-TR-1371 Comparison of the experimental and theoretical distribution of lift on a slender inclined body of revolution at M = 2 Author(s): Perkins, Edward W; Kuehn, Donald M Abstract: Pressure distributions and force characteristics have been determined for a body of revolution consisting of a fineness ratio 5.75, circular-arc, ogival nose tangent to a cylindrical afterbody for an angle-of-attack range of ... NASA Center: Ames Research Center Publication Year: 1953 Added to NTRS: 2008-04-01 Accession Number: 93R16834; Document ID: 19930087544; Report Number: NACA-RM-A53E01 Drag of circular cylinders for a wide range of Reynolds numbers and Mach numbers Author(s): Gowen, Forrest E; Perkins, Edward W Abstract: No Abstract Available NASA Center: Ames Research Center Publication Year: 1953 Added to NTRS: 2006-11-06 Accession Number: 93R13308; Document ID: 19930084018; Report Number: NACA-TN-2960 Comparison of experimental and theoretical normal-force distributions (including Reynolds number effects) on an ogive-cylinder body at Mach number 1.98 Author(s): Perkins, Edward W; Jorgensen, Leland H Abstract: No Abstract Available NASA Center: Ames Research Center Publication Year: 1954 Added to NTRS: 2006-11-06 Accession Number: 93R17783; Document ID: 19930088493; Report Number: NACA-RM-A54H23 Characteristics of flow over inclined bodies of revolution Author(s): Allen, H Julian; Perkins, Edward W Abstract: Experimental force, moment, and center-of-pressure variations for a large number of bodies of revolution have been compared with the calculated characteristics based on the approximate theory developed in NACA-RM-A9I26. The ... NASA Center: Ames Research Center Publication Year: 1951 Added to NTRS: 2006-11-06 Accession Number: 93R15819; Document ID: 19930086529; Report Number: NACA-RM-A50L07 Investigation of some wake vortex characteristics of an inclined ogive-cylinder body at Mach number 1.98 Author(s): Jorgensen, Leland H; Perkins, Edward W Abstract: No Abstract Available NASA Center: Ames Research Center Publication Year: 1955 Added to NTRS: 2006-11-06 Accession Number: 93R18071; Document ID: 19930088781; Report Number: NACA-RM-A55E31 Experimental investigation of the effects of viscosity on the drag of bodies of revolution at a Mach number 1.5 Author(s): Chapman, Dean R; Perkins, Edward W Abstract: No Abstract Available NASA Center: Ames Research Center Publication Year: 1947 Added to NTRS: 2006-11-06 Accession Number: 93R14912; Document ID: 19930085622; Report Number: NACA-RM-A7A31a 1 2 3 Next  + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007