EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Effects of Magnus Moments on Missile Aerodynamic Performance

Download or read book Effects of Magnus Moments on Missile Aerodynamic Performance written by George Y. Jumper (Jr.) and published by . This book was released on 1991 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Aerodynamic Origin of the Magnus Effect on a Finned Missile

Download or read book Aerodynamic Origin of the Magnus Effect on a Finned Missile written by Edward Rowell Benton and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book CFD Prediction of Magnus Effect in Subsonic to Supersonic Flight

Download or read book CFD Prediction of Magnus Effect in Subsonic to Supersonic Flight written by James DeSpirito and published by . This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aerodynamic coefficients of the 7-cal. U.S. Army-Navy Spinner Rocket were characterized using computational fluid dynamic (CFD) calculations and validated using archival experimental data. The static aerodynamic coefficients, roll-damping, and pitch-damping moments were accurately predicted by steady-state Reynolds-averaged Navier-Stokes (RANS) as well as unsteady hybrid RANS/large-eddy simulation (LES) CFD. The Magnus moment was overpredicted in the subsonic and transonic regime. Unsteady RANS/LES computations did not improve the prediction of Magnus moment at the lower Mach numbers. Both steady-state RANS and unsteady RANS/LES simulations resulted in similar predictions of all aerodynamic coefficients. Distributions of Magnus moment along the projectile body showed that the largest difference in Magnus moment between configurations and Mach numbers was in the last caliber of the projectile body.

Book The Joint NOL RAE WRE Research Program on Bomb Design

Download or read book The Joint NOL RAE WRE Research Program on Bomb Design written by Frank J. Regan and published by . This book was released on 1974 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1964 extensive and successful collaboration in a bomb dynamics program has continued between research organizations in Australia, the United Kingdom and the United States. Various aspects of this joint effort have been reported in separate reports: Part 1 treated the dynamics, aerodynamics and performance of free-fall weapons stabilized by fixed cruciform stabilizers. Part 2 gave a similar treatment of split-skirt stabilizers. Part 3 reviewed results obtained from the use of freely spinning panel stabilizers. This series of reports is concluded in the present document which discusses the task of the ballistician in light of the knowledge gained during the program and illustrates the application of the techniques derived to missile design. In addition, brief reference is made to a number of research projects which have stemmed from the original tripartite work.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Book Applied Mechanics Reviews

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1973 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Wind Tunnel Study of Magnus Effects on a Differentially Rotating Missile

Download or read book A Wind Tunnel Study of Magnus Effects on a Differentially Rotating Missile written by and published by . This book was released on 1992 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates magnus effects on a non-firmed missile model which had three axially rotating sections that span at different rates. Five spin cases are examined; the mid section spinning only; the front and rear sections spinning only; all section spinning at the same speed; all sections spinning in the same direction with the mid section spinning at an additional ten revolutions per second; and all sections spinning with the mid sections spinning the opposite direction at an additional ten revolutions per second. These five cases are tested at three different spin rates for two different wind tunnel velocities. Since no research on differential spinning was found, potential flow theory of a single spinning cylinder is expanded to the differential spinning cases. Test results show that the measured Magnus forces and moments are much smaller than the potential flow predictions though most were in the predicted direction. Results also show that normal and axial forces are not affected by spin which agrees with Potential flow theory.

Book Magnus Effect in the Case of Rotating Cylinders and Shell

Download or read book Magnus Effect in the Case of Rotating Cylinders and Shell written by William E. Buford and published by . This book was released on 1954 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Government Reports Announcements Index

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Magnus Effect on Spinning Bodies of Revolution

Download or read book Magnus Effect on Spinning Bodies of Revolution written by Dinesh S. Joshi and published by . This book was released on 1979 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: A numerical finite difference method is developed to solve the three dimensional laminar/turbulent boundary layer equations on a spinning body of revolution at an angle of attack in supersonic flow. Influence of asymmetric transition and the presence of mixed boundary layers is considered to predict Magnus forces and moments. Several contributions to the Magnus effects are considered. These include asymmetric boundary layer displacement thickness, centrifugal pressure, and primary and cross flow wall shear stresses. Boundary layer structure defined by asymmetric transition is shown to critically influence the aerodynamic forces and moments on bodies of revolution. Important variables in the flow field are identified by considering variations of spin rate, Mach number, angle of attack and length of the body. Comparisons are made with experimental data and other theoretical analyses. (Author).

Book Experimental Investigation of the Magnus Effect on a Greatly Elongated Finned Rotating Body at M

Download or read book Experimental Investigation of the Magnus Effect on a Greatly Elongated Finned Rotating Body at M written by N. M. Bychkov and published by . This book was released on 1973 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the flight of a rotating missile or rocket under an angle of attack aerodynamic forces develop which are directed normal to the plane of the angle of attack, i.e., the so-called Magnus effect is displayed. The presence of lateral forces leads to the deviation of the missile from the assigned direction. For the calculation of flight trajectory it is necessary to know the magnitude of Magnus force and the point of its application. The report presents experimental data relative to the Magnus effect.