Calculation of Tunnel-induced Upwash Velocities for Swept and Yawed Wings PDF Download
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Author: S. Katzoff
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 670
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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.
Author: S. Katzoff
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 670
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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.
Author: Bertram J. Eisenstadt
Publisher:
ISBN:
Category : Aerofoils
Languages : en
Pages : 40
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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.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 992
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Book Description
Author: Welko E. Gasich
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 606
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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.
Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 72
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Book Description
Author: Ray H. Wright
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 28
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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.
Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 770
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 430
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Book Description
Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 550
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 550
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Book Description
