Author: George L. PrattPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Effects of Twist and Camber on the Low-speed Longitudinal Stability Characteristics of a 45 Degree Sweptback Wing of Aspect Ratio 8 at Reynolds Numbers from 1.5 X 10(exp 6) to 4.8 X 10(exp 6) as Determined by Pressure Distributions, Force Tests
Author: George L. PrattLoads on Thin Wings at Transonic Speeds
Author: Don D. Davis (Jr.)Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 22
Book Description
Effects of Reynolds Number and Leading Edge Shape on the Low-speed Longitudinal Stability of a 6 Percent-thick 45 Degree Sweptback Wing
Author: William C. SchneiderInvestigation at Transonic Speeds of the Loading Over a 45 Degree Sweptback Wing Having an Aspect Ratio of 3, a Taper Ratio of 0.2, and Naca 65a004 Airfoil Sections
Author: JACK F. RUNCKELPublisher:
ISBN:
Category :
Languages : en
Pages : 1
Book Description
An investigation at transonic speeds of the loading over a 45 degree sweptback wing having an aspect ratio of 3, a taper ratio of 0.2, and NACA 65A004 airfoil sections was conducted in the Langley 16-foot transonic tunnel. Pressure measurements on the wing-body combi ation were obtained at angles of attack from 0 degrees to 26 degrees at Mach numbers from 0.80 to 0.98 and at angles of attack from 0 degrees to about 12 degrees at Mach numbers from 1.00 to 1.05. Reynolds number, based on the wing mean aerodynamic c ord varied from 7 times 10 to the 6th po er to 8.5 times 10 to the 6th power over the test Mach number range. Results of the investigation indicate that a highly swept shock originates at the juncture of the wing leading edge and the body at moderate angles of attack and has a large influence on the loading over the inboard wing sections. (Author).
Effects of Mach Number, Leading Edge Bluntness and Sweep on Boundary-layer Transition on a Flat Plate
Author: Don W. JilliePublisher:
ISBN:
Category : Fluid mechanics
Languages : en
Pages : 36
Book Description
Effects of Leading-edge Radius on the Longitudinal Stability of Two 45 Degrees Sweptback Wings Incorporating Leading-edge Camber as Influenced by Reynolds Numbers Up to 8.00 X 10 6 and Mach Numbers Up to 0.290
Author: Gerald V. FosterEffects of Mach Number Variation Between 0.07 and 0.34 and Reynolds Number Variation Between 0.97 X 10(exp 6) and 8.1 X 10(exp 6) on the Maximum Lift Coefficient of a Wing of NACA 64-210 Airfoil Sections
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The effects of Mach number and Reynolds number on the maximum lift coefficient of a wing of NACA 64-210 airfoil sections are presented. The wing was tested through the speed range of the Langley 19-foot pressure tunnel at two values of air pressure. The ranges of Mach number obtained were from 0.07 to 0.34 at atmospheric pressure and from 0.08 to 0.26 at a pressure of 33 pounds per square inch absolute. The corresponding Reynolds number ranges were from 0.97 x 10(exp 6) to 4.44 x 10(exp 6) and from 2.20 x 10(exp 6) to 8.10 x 10(exp 6), respectively. The tests were made with and without partial-span and full-span split flaps deflected 60 deg. Pressure-distribution measurements were obtained for all configurations. The maximum lift coefficient was a function of the two independent variables, Mach number and Reynolds number, and both parameters had an important effect on the maximum lift coefficient in the ranges investigated. The stall-progression and, consequently, the shape of the lift-curve at the stall were influenced by variations in both Mach number and Reynolds number. Peak maximum lift coefficients were measured at Mach numbers between 0.12 and 0.20, depending on the Reynolds number range and flap configuration. There was very little influence of either Mach number or Reynolds number on the maximum lift of the wing with leading-edge roughness.
Author: 
Author: Gerald V. Foster
Author: George L. Pratt