Notice bibliographique
- Notice
Type(s) de contenu et mode(s) de consultation : Texte noté : électronique
Auteur(s) : Lorenz, Ralph (1969-....)
Titre(s) : Spinning flight [Texte électronique] : dynamics of frisbees, boomerangs, samaras, and skipping stones / Ralph D. Lorenz
Titre d'ensemble : Springer e-books
Publication : New York : Springer Science+Business Media, cop. 2006
Description matérielle : 1 online resource (xxi, 346, 7 pages)
Note(s) : Includes bibliographical references and index. - Print version record.
More frisbees are sold each year than baseballs, basketballs and footballs combined.
Yet these familiar flying objects have subtle and clever aerodynamic and gyrodynamic
properties which are only recently being documented by wind tunnel and other studies.
In common with other rotating bodies discussed in this readily accessible book, they
are typically not treated in textbooks of aeronautics and the literature is scattered
in a variety of places. This book develops the theme of disc-wings and spinning aerospace
vehicles in parallel. Since many of the examples are recreational, anyone who enjoys
these activities will likely find it profitable and enjoyable. In addition to spinning
objects of various shapes, several exotic manned aircraft with disc planforms have
been proposed and prototypes built, these include a Nazi 'secret weapon' and the De
Havilland Avrocar, also discussed in the book. Boomerangs represent another category
of spinning aerodynamic body whose behavior can only be understood by coupling aerodynamics
with gyrodynamics. The narrative, supported by equations and graphs, explains how
the shape and throw of a boomerang relates to its trajectory.; The natural world presents
still other examples, namely the samaras or 'seed-wings' of many tree species, which
autorotate during their descent, like a helicopter whose engine has failed. The flight
performance of these spinning wings directly affects the dispersal and thus the evolutionary
competitiveness of the trees concerned. Samara-type configurations are also considered
for instrumentation and other payload dispersal applications. In short, the book discusses
a range of familiar, connected, but largely undeveloped, topics in an accessible,
but complete, manner
Sujet(s) : Boomerangs
Frisbee (jeu)
Mouvement rotatoire
Aérodynamique
Indice(s) Dewey :
629.132 (23e éd.) = Mécanique du vol, pilotage et sujets connexes ; 533.6 (23e éd.) = Aéromécanique
Identifiants, prix et caractéristiques : ISBN 9780387472898
Identifiant de la notice : ark:/12148/cb44642801x
Notice n° :
FRBNF44642801
(notice reprise d'un réservoir extérieur)
Table des matières : Introduction ; Aerodynamics of balls ; Bouncing balls, airbags, and tumbleweeds ;
Spinning bullets, bomb, and rockets ; Satellites and spin ; Encountering asteroids
and comets ; Planetary probes and spinning parachutes ; Frisbees ; Flying cylinders
and rings ; Spinning aircraft and nonspinning disc aircraft ; The boomerang ; Samaras
; Skipping stones and bouncing bombs ; Conclusions.
