Author: Don W. Jillie
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 36
Book Description
Effects of Mach Number, Leading Edge Bluntness and Sweep on Boundary-layer Transition on a Flat Plate
Author: Don W. Jillie
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 36
Book Description
Publisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 36
Book Description
Effects of Reynolds Number and Body Corner Radius on Aerodynamic Characteristics of a Space Shuttle-type Vehicle at Subsonic Mach Numbers
Author: Leland Howard Jorgenson
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 44
Book Description
Static aerodynamic forces and moments were measured to study the effects of Reynolds number and body corner radius on the aerodynamic characteristics of a straight wing space shuttle orbiter at subsonic speeds. A 0.02-scale model was tested at Mach numbers from 0.3 to 0.9 and Reynolds numbers from about 600,000 to 3 million, based on body width. The body alone and the body with its wing and horizontal tail attached were tested at angles of attack from 35 to 75 degrees. The effects of rounding the body corners at the junctures connecting the bottom and sides were investigated for corner radii from 0 to 8.5 percent of the body width. At low subsonic Mach numbers (free stream Mach number approximately equal 0.3) the aerodynamic characteristics are affected significantly by changes in Reynolds number and body corner radius. With increase in Mach number to free stream Mach number = 0.9 the effect of Reynolds number seems to vanish, but a significant effect of body corner radius remains.
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 44
Book Description
Static aerodynamic forces and moments were measured to study the effects of Reynolds number and body corner radius on the aerodynamic characteristics of a straight wing space shuttle orbiter at subsonic speeds. A 0.02-scale model was tested at Mach numbers from 0.3 to 0.9 and Reynolds numbers from about 600,000 to 3 million, based on body width. The body alone and the body with its wing and horizontal tail attached were tested at angles of attack from 35 to 75 degrees. The effects of rounding the body corners at the junctures connecting the bottom and sides were investigated for corner radii from 0 to 8.5 percent of the body width. At low subsonic Mach numbers (free stream Mach number approximately equal 0.3) the aerodynamic characteristics are affected significantly by changes in Reynolds number and body corner radius. With increase in Mach number to free stream Mach number = 0.9 the effect of Reynolds number seems to vanish, but a significant effect of body corner radius remains.
EPA National Publications Catalog
Author: United States. Environmental Protection Agency
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 832
Book Description
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 832
Book Description
Report
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 24
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 24
Book Description
NASA Technical Paper
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 68
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 68
Book Description
Numbers and the Making of Us
Author: Caleb Everett
Publisher: Harvard University Press
ISBN: 0674504437
Category : Language Arts & Disciplines
Languages : en
Pages : 308
Book Description
“A fascinating book.” —James Ryerson, New York Times Book Review A Smithsonian Best Science Book of the Year Winner of the PROSE Award for Best Book in Language & Linguistics Carved into our past and woven into our present, numbers shape our perceptions of the world far more than we think. In this sweeping account of how the invention of numbers sparked a revolution in human thought and culture, Caleb Everett draws on new discoveries in psychology, anthropology, and linguistics to reveal the many things made possible by numbers, from the concept of time to writing, agriculture, and commerce. Numbers are a tool, like the wheel, developed and refined over millennia. They allow us to grasp quantities precisely, but recent research confirms that they are not innate—and without numbers, we could not fully grasp quantities greater than three. Everett considers the number systems that have developed in different societies as he shares insights from his fascinating work with indigenous Amazonians. “This is bold, heady stuff... The breadth of research Everett covers is impressive, and allows him to develop a narrative that is both global and compelling... Numbers is eye-opening, even eye-popping.” —New Scientist “A powerful and convincing case for Everett’s main thesis: that numbers are neither natural nor innate to humans.” —Wall Street Journal
Publisher: Harvard University Press
ISBN: 0674504437
Category : Language Arts & Disciplines
Languages : en
Pages : 308
Book Description
“A fascinating book.” —James Ryerson, New York Times Book Review A Smithsonian Best Science Book of the Year Winner of the PROSE Award for Best Book in Language & Linguistics Carved into our past and woven into our present, numbers shape our perceptions of the world far more than we think. In this sweeping account of how the invention of numbers sparked a revolution in human thought and culture, Caleb Everett draws on new discoveries in psychology, anthropology, and linguistics to reveal the many things made possible by numbers, from the concept of time to writing, agriculture, and commerce. Numbers are a tool, like the wheel, developed and refined over millennia. They allow us to grasp quantities precisely, but recent research confirms that they are not innate—and without numbers, we could not fully grasp quantities greater than three. Everett considers the number systems that have developed in different societies as he shares insights from his fascinating work with indigenous Amazonians. “This is bold, heady stuff... The breadth of research Everett covers is impressive, and allows him to develop a narrative that is both global and compelling... Numbers is eye-opening, even eye-popping.” —New Scientist “A powerful and convincing case for Everett’s main thesis: that numbers are neither natural nor innate to humans.” —Wall Street Journal
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1516
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1516
Book Description
Proceedings of the 11th International Wheat Genetics Symposium, 24-29 August 2008, Brisbane, Qld., Australia
Author: Rudi Appels
Publisher: Sydney University Press
ISBN: 192089909X
Category : Science
Languages : en
Pages : 406
Book Description
The papers herein are volume 2 of the proceedings of the 11th International Wheat Genetics Symposium, held in Brisbane, Australia, in 2008. The series presents the science of the genetic sciences applied to bread and durum wheats and other species.
Publisher: Sydney University Press
ISBN: 192089909X
Category : Science
Languages : en
Pages : 406
Book Description
The papers herein are volume 2 of the proceedings of the 11th International Wheat Genetics Symposium, held in Brisbane, Australia, in 2008. The series presents the science of the genetic sciences applied to bread and durum wheats and other species.
Inventory of Federal Energy-related Environment and Safety Research for FY 1979
Author:
Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 704
Book Description
Publisher:
ISBN:
Category : Environmental engineering
Languages : en
Pages : 704
Book Description
Public Health Service Publication
Author:
Publisher:
ISBN:
Category : Public health
Languages : en
Pages : 1376
Book Description
Publisher:
ISBN:
Category : Public health
Languages : en
Pages : 1376
Book Description