Download or read book Helium Bubble Survey of a Parachute Opening Flowfield written by Paul C. Klimas and published by . This book was released on 1972 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A velocity survey of the flow field surrounding an 18 inch nominal diameter flat circular parachute model was made using the helium bubble technique. Due to asymmetrical model behavior arising from optical limitations, only two points in the filling cycle were examined. The point at which the canopy first reaches full open (instant at which inflation is comnplete) and at a time late in the cycle when steady state flow conditions are reached. Bubble streaks were photographed by two synchronized, orthogonally mounted still cameras, and the particle velocities were calculated using the measured lengths of the images and the camera exposure times. Although the canopy geometries at the two points considered were quite similar, their surrounding flow fields were not. At the instant of full inflation, both the axial and radial velocities reached much higher values than in the steady state operation and were confined to a region much closer to the canopy. Additionally, the turbulent wake area near the vent was roughly only 40% as large as the steady state counterpart, and it has associated with it an average negative velocity equal to approximately one half the free-stream value.

Download or read book Recovery System Design Guide written by E. G. Ewing and published by . This book was released on 1979 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document serves as the third revision of the USAF Parachute Handbook which was first published in 1951. The data and information represent the current state of the art relative to recovery system design and development. The initial chapters describe representative recovery applications, components, subsystems, material, manufacture and testing. The final chapters provide empirical data and analytical methods useful for predicting performance and presenting a definitive design of selected components into a reliable recovery system.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fluid Mechanics Measurements written by R. Goldstein and published by Routledge. This book was released on 2017-11-13 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revised edition provides updated fluid mechanics measurement techniques as well as a comprehensive review of flow properties required for research, development, and application. Fluid-mechanics measurements in wind tunnel studies, aeroacoustics, and turbulent mixing layers, the theory of fluid mechanics, the application of the laws of fluid mechanics to measurement techniques, techniques of thermal anemometry, laser velocimetry, volume flow measurement techniques, and fluid mechanics measurement in non-Newtonian fluids, and various other techniques are discussed.

Download or read book A Collection of Technical Papers written by and published by . This book was released on 1975 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Special Publication written by and published by . This book was released on 1976 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydraulic Research in the United States and Canada 1974 written by Pauline H. Gurewitz and published by . This book was released on 1976 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydraulic Research in the United States and Canada written by and published by . This book was released on 1972 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Hydronautics written by and published by . This book was released on 1977 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: A publication of the American Institute of Aeronautics and Astronautics devoted to marine science and technology.

Download or read book A Study of the Accuracy of Neutrally Buoyant Bubbles Used as Flow Tracers in Air written by Michael Fort Kerho and published by . This book was released on 1992 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements written by and published by . This book was released on 1973-07-25 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book AIAA Bulletin written by and published by . This book was released on 1974 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Astronautics Aeronautics written by and published by . This book was released on 1976 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Programs written by and published by . This book was released on 1976 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Aircraft written by and published by . This book was released on with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Index written by and published by . This book was released on 1973 with total page 1124 pages. Available in PDF, EPUB and Kindle. Book excerpt: