A Wind Tunnel Free Flight Data Reduction Program For Either Spinning Or Non Spinning Models Utilizing Data From A Single Plane

Author : Charles Eugene Knadler
Publisher : Unknown
Page : 112 pages
File Size : 53,9 Mb
Release : 1968
Category : Wind tunnels
ISBN : UOM:39015095150309

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A Wind Tunnel Free-flight Data-reduction Program for Either Spinning Or Non Spinning Models Utilizing Data from a Single Plane by Charles Eugene Knadler Pdf

This report describes PLANAR, a data-reduction program for wind tunnel free-flight tests which utilizes data from a single plane. The program calculates moment, force and, in the case of a spinning model, Magnus coefficients. The program is written for an IBM 7090 computer operating under the IBSYS monitor. The mathematical formulation of the problem and the computer program are presented. The program description includes a FORTRAN listing and instructions for its use. (Author).

Author : Anonim
Publisher : Unknown
Page : 818 pages
File Size : 53,9 Mb
Release : 2024-06-30
Category : Science
ISBN : CORNELL:31924057185310

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Technical Abstract Bulletin by Anonim Pdf

Author : Frank J. Regan
Publisher : Unknown
Page : 122 pages
File Size : 45,6 Mb
Release : 1971
Category : Ballistics
ISBN : UOM:39015095150812

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Aeroballistic Evaluation and Computer Stability Analysis of the U. S. Navy 20-millimeter General Purpose Projectile by Frank J. Regan Pdf

The report presents the results of ballistics range and wind-tunnel measurements of the static force and moment and the pitch-damping, roll-damping and Magnus moments for a General Purpose 20-Millimeter Projectile. Data are presented for a Smooth and Basic configuration. These aerodynamic data are used in a special digital computer program to rapidly assess the stability of the projectiles over various mission profiles. The normal-force and pitching-moment derivatives are evaluated, theoretically, by Wood's method and compared with the measurements.

Author : Charles Eugene Knadler
Publisher : Unknown
Page : 58 pages
File Size : 51,9 Mb
Release : 1968
Category : Differential equations
ISBN : UOM:39015095150390

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A Method for Determining the Parameters of Ordinary Differential Equations by Charles Eugene Knadler Pdf

The report presents a method for determining the parameters of ordinary differential equations, where it is not necessary that the equation have a closed-form solution. DIFRED, a computer data-reduction program utilizing the method, is also described. The program is written for an IBM 7090 computer operating under the IBSYS monitor. The mathematical formulation of the method is presented, and the FORTRAN listing of DIFRED and instructions for its use are included. (Author).

Author : I. D. Jacobson
Publisher : Unknown
Page : 72 pages
File Size : 49,9 Mb
Release : 1973
Category : Ballistics
ISBN : MINN:31951000526587E

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Magnus Characteristics of Arbitrary Rotating Bodies by I. D. Jacobson Pdf

The report reviews both theoretical and experimental investigations of the Magnus effect on arbitrary bodies of revolution. The main emphasis is on spinning projectiles at angle of attack, both with and without fins. Flow visualization measurements are used to assess the accuracy of the existing theories. Laminar, turbulent, and mixed boundary layers are considered. (Author).

Author : Anonim
Publisher : Unknown
Page : 974 pages
File Size : 53,6 Mb
Release : 1982-08
Category : Science
ISBN : CORNELL:31924055269124

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Government Reports Announcements & Index by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 982 pages
File Size : 43,5 Mb
Release : 1990
Category : Aeronautics
ISBN : UIUC:30112075696762

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Aeronautical Engineering by Anonim Pdf

A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).

Author : Anonim
Publisher : Unknown
Page : 980 pages
File Size : 40,6 Mb
Release : 1998
Category : Aeronautics
ISBN : STANFORD:36105021108324

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International Aerospace Abstracts by Anonim Pdf

Author : K. S. Keen,C. H. Morgret,R. L. Arterbury
Publisher : Unknown
Page : 122 pages
File Size : 47,8 Mb
Release : 1997
Category : Equations of motion
ISBN : UOM:39015104952026

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An Analytic Investigation of Accuracy Requirements for Onboard Instrumentation and Film Data for Dynamically Scaled Wind Tunnel Drop Models by K. S. Keen,C. H. Morgret,R. L. Arterbury Pdf

An analytic study was conducted to evaluate anticipated ranges and required accuracies for onboard linear acceleration and angular rate (or acceleration) measurement equipment to be mounted within dynamically scaled wind tunnel drop models. Generic simulations of the separation motion of a tumbling fuel tank both at full scale and at 1/15th wind tunnel model scale were generated using an analytic trajectory simulation program coupled with a prescribed aerodynamic database. The simulations provide a basis for sizing the required instrumentation for proof of concept demonstrations of telemetry techniques in the wind tunnel. The simulations were also used as test cases to demonstrate extraction of aerodynamic information from drop data positions and orientations as read from film records via an inverse solution of the store equations of motion. The studies also aid identification and evaluation of inaccuracies associated with the basic dynamic scaling laws and standard film based data reduction techniques.

Author : Anonim
Publisher : Unknown
Page : 1116 pages
File Size : 43,9 Mb
Release : 1962
Category : Mechanics, Applied
ISBN : UCAL:C2682417

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Applied Mechanics Reviews by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 450 pages
File Size : 44,7 Mb
Release : 1934
Category : Aeronautics
ISBN : NYPL:33433108238571

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Flight by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 726 pages
File Size : 48,5 Mb
Release : 1984
Category : Technology & Engineering
ISBN : UOM:39015013042919

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The Software Catalog by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 818 pages
File Size : 53,7 Mb
Release : 1934
Category : Electronic
ISBN : OSU:32435054692363

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The Aeroplane by Anonim Pdf

Author : Anonim
Publisher : Unknown
Page : 826 pages
File Size : 40,7 Mb
Release : 1998
Category : Dissertations, Academic
ISBN : STANFORD:36105021180554

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Dissertation Abstracts International by Anonim Pdf

Author : Paul T. Soderman,Thomas N. Aiken
Publisher : Unknown
Page : 108 pages
File Size : 49,8 Mb
Release : 1971
Category : Airplanes
ISBN : UIUC:30112106692574

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Full-scale Wind-tunnel Tests of a Small Unpowered Jet Aircraft with a T-Tail by Paul T. Soderman,Thomas N. Aiken Pdf

The aerodynamic characteristics of a full scale executive type jet transport aircraft with a T-tail were investigated in a 40 x 80 ft (12.2 by 24.4 meter) wind tunnel (subsonic). Static, longitudinal, and lateral stability, and control characteristics were determined at angles of attack from -2 deg to 42 deg. The aircraft wing had 13 deg of sweep and an aspect ratio of 5.02. The aircraft was tested power off with various wing leading- and trailing-edge high lift devices. The basic configuration was tested with and without such components as engine nacelles, wing tip tanks, and empannage. Hinge-moment data were obtained and downwash angles in the horizontal-tail plane location were calculated. The data were obtained at Reynolds numbers of 4.1 million and 8.7 million based on mean aerodynamic chord. The model had static longitudinal stability through initial stall. Severe tail buffet occurred near the angle of attack for maximum lift. Above initial stall the aircraft had pronounced pitch-up, characteristic of T-tail configurations. A stable trim point was possible at angles of attack between 30 deg and 40 deg (depending on c.g. location and flap setting). Hinge-moment data showed no regions with adverse effects on stick force. Comparisons of wind-tunnel data and flight-test are presented.