Author: S. Katzoff
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 670
Book Description
The tunnel-induced upwash for a wing of any plan form and load distribution in a rectangular tunnel may be found with the aid of only two charts. One is given in the present paper. The second must be computed for each tunnel. The second chart is given for an open tunnel of 2:1 width-height ratio, a closed tunnel of 2:5 width-height ratio, and a closed tunnel of 10:7 width-height ratio.
Calculation of Tunnel-induced Upwash Velocities for Swept and Yawed Wings
Author: S. Katzoff
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 670
Book Description
The tunnel-induced upwash for a wing of any plan form and load distribution in a rectangular tunnel may be found with the aid of only two charts. One is given in the present paper. The second must be computed for each tunnel. The second chart is given for an open tunnel of 2:1 width-height ratio, a closed tunnel of 2:5 width-height ratio, and a closed tunnel of 10:7 width-height ratio.
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 670
Book Description
The tunnel-induced upwash for a wing of any plan form and load distribution in a rectangular tunnel may be found with the aid of only two charts. One is given in the present paper. The second must be computed for each tunnel. The second chart is given for an open tunnel of 2:1 width-height ratio, a closed tunnel of 2:5 width-height ratio, and a closed tunnel of 10:7 width-height ratio.
Boundary-induced Upwash for Yawed and Swept-back Wings in Closed Circular Wind Tunnels
Author: Bertram J. Eisenstadt
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 40
Book Description
The tunnel-induced velocities for yawed and swept-back airfoils in a closed circular wind tunnel were determined. The calculations were performed for elemental horseshoe vortices having one tip of the bound vortex on the tunnel axis for a range of yaw angles and bound-vortex lengths. From these results, the correction for complete yawed and swept-back wings of arbitrary span loading may be obtained by a superposition of solutions.
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 40
Book Description
The tunnel-induced velocities for yawed and swept-back airfoils in a closed circular wind tunnel were determined. The calculations were performed for elemental horseshoe vortices having one tip of the bound vortex on the tunnel axis for a range of yaw angles and bound-vortex lengths. From these results, the correction for complete yawed and swept-back wings of arbitrary span loading may be obtained by a superposition of solutions.
Technical Note - National Advisory Committee for Aeronautics
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 992
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 992
Book Description
Experimental Verification of Two Methods for Computing the Take-off Ground Run of Propeller-driven Aircraft
Author: Welko E. Gasich
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 606
Book Description
A comparison is presented between the measured take-off ground run of an airplane equipped with seven different propeller-engine gear-ratio combinations and the computed distances by two different methods.
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 606
Book Description
A comparison is presented between the measured take-off ground run of an airplane equipped with seven different propeller-engine gear-ratio combinations and the computed distances by two different methods.
NACA Research Memorandum
Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 72
Book Description
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 72
Book Description
Wind-tunnel Lift Interference on Sweptback Wings in Rectangular Test Sections with Slotted Top and Bottom Walls
Author: Ray H. Wright
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 28
Book Description
A theory is presented for the boundary-induced up-wash interference on a sweptback lifting wing mounted at the center of a rectangular wind-tunnel test section with slotted top and bottom walls and closed side walls. A sample calculation for a wing spanning 0.7 of the width of a square tunnel shows the span-wise variation in the interference characteristic of this type of test section. For this example, the wing sweep did not have a large effect on the interference.
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 28
Book Description
A theory is presented for the boundary-induced up-wash interference on a sweptback lifting wing mounted at the center of a rectangular wind-tunnel test section with slotted top and bottom walls and closed side walls. A sample calculation for a wing spanning 0.7 of the width of a square tunnel shows the span-wise variation in the interference characteristic of this type of test section. For this example, the wing sweep did not have a large effect on the interference.
Applied Mechanics Reviews
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 770
Book Description
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 770
Book Description
NASA Technical Note
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 430
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 430
Book Description
NASA Technical Report
Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 550
Book Description
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 550
Book Description
Technical Note
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 550
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 550
Book Description