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th Aerospace Sciences Meeting and Exhibit January 11-14, 1999, Reno, NV
X-33 Computation performed by the ParNSS code 37th Aerospace Sciences Meeting and Exhibit January 11-14, 1999, Reno, NV 1. Java as a Programming Tool in Engineering Java, introduced in late 1995, was an instant success with the Internet programming community. However, Java was not considered to be a suitable language for software engineering in aerospace, and in particular for computational fluid dynamics (CFD). The reason simply was that Java was lacking performance, because it was an interpreted language. Recently, however, work at IBM and elsewhere [1], [2], [3] has shown that Java can provide high performance, through careful relaxation of Java's careful exception handling and transformations of the bytecode. .
2017
S OF PAPERS, 87th Annual Meeting of the Virginia Academy of Science, May 27-29, 2009, Virginia Commonwealth University, Richmond VA Aeronautical and Aerospace Sciences FROM THE EARTH TO SPACE WITH NACA/NASA. M. Leroy Spearman. NASALangley Research Center, Hampton, VA 23681 & Heidi Owens, Auburn University, Auburn, AL 36849. Leonardo da Vinci envisioned man-flight in the 15 century and th designed a practical airplane concept in 1490. Many other pioneers proposed various types of flying machines over the next 400 years but it was not until December 17, 1903 that the Wright Brothers, at Kitty Hawk, NC, were credited with achieving the first manned-powered flight. Over the next 100 years, several factors have influenced advances in aviation. The use of aircraft by European nations in World War I resulted in concern that the U.S. was lagging in aviation developments. This lead to an act of the U.S. Congress in 1915 that established the National Advisory Committee for Aeronautics (NACA) ...
Aviation Mechanics Bulletin July-August 1996
1996
s should be about 200 words, and should be submitted before Nov. 18, 1996, to John Snell, Topical Chairman, at ASNT, 1711 Arlingate Lane, P.O. Box 28518, Columbus, OH 43228-0518 U.S. They may also be submitted by fax to (802) 223-0460, or e-mail to thermaljrs@aol.com. ASNT is holding its Fall Conference and Quality Testing Show Oct. 14– 18 at the Washington State Convention & Trade Center, Seattle, Washington, U.S. The conference theme will be “NDT — New Horizons on the Pacific,” and will showcase a new central certification program, an interactive World Wide Web site called NDT Link and Volume 10 of the NDT Handbook . For more information, contact ASNT at (800) 222-2768 (U.S. and Canada only) or (614) 274-6003. FlightSafety International Introduces Master Technician Training Program FlightSafety International (FSI) has introduced a new concept of training and certification for aircraft maintenance technicians. Called the “Master Technician Program,” it focuses on training that enab...
Air Force Academy Aeronautics Digest - Fall/Winter 1981
1981
: Contents: Experimental Documentation of the Lifting Surface Wakes of a Canard and Forward-Swept Wind Configuration; Experimental Flow Field Measurements of Three-Dimensional Square Cross-Section Missiles at Moderate Angles of Attack; What Makes the Aircraft Gas Turbine Engine so Good at Altitude; Determination of the Frequency Response Characteristics of a Redesigned Seven-Hole Pressure Probe; The Aeronautics Department and Core Courses at the United States Air Force Academy; and Some Aeronautical Experiments by Wilbur Wright; and The Engineer's Bookshelf.
Journal of Aerospace Technology and Management
How to cite Complete issue More information about this article Journal's homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative
This paper describes aerodynamic design work aimed at developing a passive porosity control effector system for a generic tailless fighter aircraft. As part of this work, a computational design tool was developed and used to layout passive porosity effector systems for longitudinal and lateral-directional control at a lowspeed, high angle of attack condition. Aerodynamic analysis was conducted using the NASA Langley computational fluid dynamics code USM3D, in conjunction with a newly formulated surface boundary condition for passive porosity. Results indicate that passive porosity effectors can provide maneuver control increments that equal and exceed those of conventional aerodynamic effectors for low-speed, high-alpha flight, with control levels that are a linear function of porous area. This work demonstrates the tremendous potential of passive porosity to yield simple control effector systems that have no external moving parts and will preserve an aircraft's fixed outer moldline.
NASA Development of Aerocapture Technologies
17th AIAA Aerodynamic Decelerator Systems Technology Conference and Seminar, 2003
The work described in this paper was fwzded in whole or in part by the In-Space Propulsion Technology Program, which is managed by NASA ' s Science Mission Directorate in Washington, D. C., and implemented by the In-Space Propulsion Technology Ojfjlce at Marshall Space Flight Center in Huntsville, Ala. The program objective is to develop in-space propulsion technologies that can enable or benefit near and midterm NASA space science missions by signifcantly reducing cost, mass or travel times.