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Wind Tunnel Investigation Of Inflation Of Disk Gap Band And Modified Ringsail Parachutes At Dynamic Pressures Between 024 And 707 Pounds Per Square Foot
Download Wind Tunnel Investigation Of Inflation Of Disk Gap Band And Modified Ringsail Parachutes At Dynamic Pressures Between 024 And 707 Pounds Per Square Foot full books in PDF, epub, and Kindle. Read online Wind Tunnel Investigation Of Inflation Of Disk Gap Band And Modified Ringsail Parachutes At Dynamic Pressures Between 024 And 707 Pounds Per Square Foot ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Wind-tunnel Investigation of Inflation of Disk-gap-band and Modified Ringsail Parachutes at Dynamic Pressures Between 0.24 and 7.07 Pounds Per Square Foot by : Charles H. Whitlock
Download or read book Wind-tunnel Investigation of Inflation of Disk-gap-band and Modified Ringsail Parachutes at Dynamic Pressures Between 0.24 and 7.07 Pounds Per Square Foot written by Charles H. Whitlock and published by . This book was released on 1969 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploratory wind-tunnel tests of the disk-gap-band and modified ringsail parachute configurations have been conducted at dynamic pressures between 0.24 and 7.07 lb/ft2 (11 and 339 N/m2). Both parachutes exhibited positive inflation characteristics over the range of the tests within technique limitations. The disk-gap-band configuration required less time and distance to inflate than the modified ringsail configuration did.
Book Synopsis Inflation and Performance of Three Parachute Configurations from Supersonic Flight Tests in a Low-density Environment by : Charles H. Whitlock
Download or read book Inflation and Performance of Three Parachute Configurations from Supersonic Flight Tests in a Low-density Environment written by Charles H. Whitlock and published by . This book was released on 1969 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten flight tests of modified-ringsail, disk-gap-band, and cross parachute configurations with deployment at Mach numbers and dynamic pressures corresponding to conditions expected during entry into a Martian atmosphere have been completed. Comparison of flight results indicates that theoretical snatch force values were never exceeded when the deployment techniques of these tests were used. Opening loads showed no definite trend with Mach number. Values for filling times compared favorably with generally accepted empirical curves based on 15-percent geometric porosity. Canopy stability was good when Mach numbers were below 1.4 for the modified-ringsail and disk-gap-band configurations.
Book Synopsis Wind-tunnel Investigation of Drag and Stabili- Ty of Parachutes at Supersonic Speeds by : Nickolai Charczenko
Download or read book Wind-tunnel Investigation of Drag and Stabili- Ty of Parachutes at Supersonic Speeds written by Nickolai Charczenko and published by . This book was released on 1964 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wind Tunnel Tests of a 20-gore Disk-gap-band Parachute by : William P. Ludtke
Download or read book Wind Tunnel Tests of a 20-gore Disk-gap-band Parachute written by William P. Ludtke and published by . This book was released on 1989 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents wind tunnel tests of a series of 20 gore Disk-Gap-Band parachutes to determine the effects off [sic] gap length, band length, band billow, and cloth air permeability on the parachute aerodynamic characteristics. Measurements for the steady-state drag-force, opening shock force, oscillation stability, and inflation stability were made of the various configurations and are presented in tabular and graphical format.
Book Synopsis Large-scale Wind-tunnel Investigation of an M1-L Lifting Body with an Inflatable and a Rigid Afterbody by : Kenneth W. Mort
Download or read book Large-scale Wind-tunnel Investigation of an M1-L Lifting Body with an Inflatable and a Rigid Afterbody written by Kenneth W. Mort and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance of a 26-meter-diameter Ringsail Parachute in a Simulated Martian Environment by : Charles H. Whitlock
Download or read book Performance of a 26-meter-diameter Ringsail Parachute in a Simulated Martian Environment written by Charles H. Whitlock and published by . This book was released on 1967 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inflation, drag, and stability characteristics of an 85.3-foot (26 meter) nominal diameter ringsail parachute deployed at a Mach number of 1.15 and at an altitude of 132,600 feet (40.42 kilometers) were obtained from the first flight test of the Planetary Entry Parachute Program. After deployment, the parachute inflated to the reefed condition. However, the canopy was unstable and produced low drag in the reefed condition. [remainder of summary illegible].
Book Synopsis Parachute Inflation Process Wind-tunnel Study by : Edwin Pounder
Download or read book Parachute Inflation Process Wind-tunnel Study written by Edwin Pounder and published by . This book was released on 1956 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents results of an experimental study of the parachute inflation process. The investigation was carried out in a low speed wind tunnel using small cloth models, and an analysis is presented which gives a basis for extrapolation of the data recorded to any reasonably low Mach number case. The drag of the parachutes and the shapes of the canopies during the inflation process are studied in considerable detail, and some qualitative studies of the flow fields are conducted. The principle variables studied are parachute type, velocity (dynamic pressure), and canopy porosity. The theoretical analysis develops a procedure by which full scale characteristics can be predicted from wind tunnel data, and several examples are computed to illustrate the technique.
Book Synopsis WInd-tunnel Investigation of the Opening Characteristics, Drag, and Stability of Several Hemispherical Parachutes by : Stanley H. Scher
Download or read book WInd-tunnel Investigation of the Opening Characteristics, Drag, and Stability of Several Hemispherical Parachutes written by Stanley H. Scher and published by . This book was released on 1949 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation has been conducted to determine the opening characteristics of several hemispherical parachutes and to study the influence of the parachute design variables on these opening characteristics. The effects of design variables on the drag and stability characteristics of the parachutes were also evaluated.
Book Synopsis Wind-tunnel Investigation of the Aerodynamic Pressures on the Apollo Launch Escape Vehicle Configuration by : William C. Moseley (Jr.)
Download or read book Wind-tunnel Investigation of the Aerodynamic Pressures on the Apollo Launch Escape Vehicle Configuration written by William C. Moseley (Jr.) and published by . This book was released on 1970 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Apollo Wind Tunnel Testing Program by : William C. Moseley (Jr.)
Download or read book Apollo Wind Tunnel Testing Program written by William C. Moseley (Jr.) and published by . This book was released on 1966 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acquisition and utilization of wind tunnels by the National Aeronautics and Space Administration by : United States. General Accounting Office
Download or read book Acquisition and utilization of wind tunnels by the National Aeronautics and Space Administration written by United States. General Accounting Office and published by . This book was released on 1976 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of the Flow Field During the Inflation of Clustered Parachutes by : R. J. Niccum
Download or read book Investigation of the Flow Field During the Inflation of Clustered Parachutes written by R. J. Niccum and published by . This book was released on 1966 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clustered parachutes during the period of inflation were simulated by elliptical cylinders in potential flow and so-called O'Hara shape parachutes in water flow and wind tunnel experiments. The results are presented in the form of streamline and pressure distribution plots around the respective bodies. Results show that when geometric symmetry is disturbed, the flow field becomes unsymmetrical and strong attractive or repulsive forces are developed. This allows a variety of inflation modes to occur and, hence, poor cluster opening performance.
Book Synopsis An Investigation of the Initial Century Series Ringsail Parachute by : Leland C. Norman
Download or read book An Investigation of the Initial Century Series Ringsail Parachute written by Leland C. Norman and published by . This book was released on 1970 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Collector Configuration on Test Section Turbulence Levels in an Open-jet Wind Tunnel by : G. S. Manuel
Download or read book Effect of Collector Configuration on Test Section Turbulence Levels in an Open-jet Wind Tunnel written by G. S. Manuel and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Parachute Opening Dynamics with Supporting Wind Tunnel Experiements by : Helmut G. Heinrich
Download or read book Analysis of Parachute Opening Dynamics with Supporting Wind Tunnel Experiements written by Helmut G. Heinrich and published by . This book was released on 1968* with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study is concerned with identification of significant terms in the process of parachute inflation. For finite mass cases, the equations of motion for parachutes inflating in free air and in wind tunnel experiments are established and organized in view of the nonsteady terms of canopy size, systems velocity, included and apparent masses, and the time derivatives of these terms. Wind tunnel experiments are described, the results of which yield graphical and numerical time functions for the significant terms of the equation of motion and the force-time histories. The wind tunnel results are compared with full size test information and certain identities are shown. The significant terms are combined to functions unique for the test conditions and substituted in the equation of motion. Force-time functions so derived compare satisfactorily with measured force histories and the contributions of the individual terms to the instantaneous parachute force can be seen.
Book Synopsis Parametric Study of Parachute Pressure Distribution by Wind Tunnel Testing by : William B. Pepper
Download or read book Parametric Study of Parachute Pressure Distribution by Wind Tunnel Testing written by William B. Pepper and published by . This book was released on 1975 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressure distribution data for solid and ribbon parachutes are presented. Three-foot diameter model parachutes of 0, 10, 15, 20, 25, 30, and 40 percent geometric porosity were tested. Suspension line lengths of 1.0, 1.5, and 2.0 constructed diameters were used. Reefing line lengths of 19, 38, and 57-in. were tested. Two 7 x 10-ft, wind tunnels were used to test over a range of dynamic pressure from 35 to 600 lb/ft2. Integration of the measured pressures over the inflated canopy profiles generally resulted in drag force values which agree within 10 percent of force balance drag data.
Book Synopsis A Parametric Wind Tunnel Study of Ribbon Parachutes by : D. F. McVey
Download or read book A Parametric Wind Tunnel Study of Ribbon Parachutes written by D. F. McVey and published by . This book was released on 1975 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents the results of a series of wind tunnel tests conducted to define the effect of geometric porosity, reefing line length, and suspension line length on ribbon parachute drag. Twenty degree conical ribbon parachutes with nominal diameter of three feet, goemetric porosities from 15 to 30 percent and line lengths from 1.0 to 2.0 times the parachute nominal diameter were tested at dynamic pressures from 75 to 500 psf. Drag coefficients based on construction and average projected diameters are presented as a function of the independent variables. Data are also presented on parachute shape and inflated diameter. The wind tunnel drag coefficients are compared with data from free flight test of full scale parachutes and with othert wind tunnel data.
