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New correlation of roughness density effect on the turbulent boundary layer
- A. Sigal, J. Danberg
- Engineering
- 1 March 1990
An experimental investigation of the turbulent boundary layer over a wavy wall
- A. Sigal
- Physics, Engineering
- 1971
An experimental investigation of turbulent boundary layer flow over wavy surfaces was conducted at low speed.
Two models with the ratio of the amplitude to the wave length a/λ = 0.03 and wave…
Aerodynamic characteristics of configurations having bodies with square, rectangular, and circular cross sections
- A. Sigal, Ehud Lapidot
- Engineering
- 1 March 1989
Wind-tunnel tests, at a Mach number of 0.75, for three families of configurations are described. Three bodies, having identical cross-sectional area and length, were tested alone and with three sets…
Analysis of Turbulent Boundary-Layer over Rough Surfaces with Application to Projectile Aerodynamics
- J. Danberg, A. Sigal
- Engineering
- 1 December 1988
Abstract : A new correlation of the roughness density effect on the intercept of the law of the wall and the equivalent sand roughness, has been developed. The data base used includes corrected…
Interactions Between a Canard and Thick Bodies: Analysis and Applications
- A. Sigal
- Physics
- 1 November 2001
A modular model, consisting of cruciform canard controls mounted on a thin forebody and e ve interchangeable thick (larger-diameter ) main bodies, was tested at a Mach number of 0.8. The canard was…
The aerodynamic characteristics of configurations having bodies withsquare, rectangular and circular cross-sections at a Mach number of 0.75
- A. Sigal
- Engineering
- 17 August 1987
The Influence of Ballistic Damage on the Aeroelastic Characteristics of Lifting Surfaces.
- D. Scott, J. Westkaemper, A. Sigal, R. Stearman
- Engineering
- 1 July 1979
Abstract : An investigation is carried out to determine whether ballistic damage can seriously degrade the aeroelastic integrity of lifting surfaces on aircraft. A promising aeroelastic failure…
Prediction and Comparison with Measurements of the Aerodynamic Characteristics of Flare-Stabilized XM910 Prototypes
- J. Danberg, A. Sigal, I. Celmins
- Physics, Engineering
- 1 May 1989
Abstract : A systematic study of a number of flare-stabilize d projectile geometries has been undertaken at the US Army Ballistic Research Laboratory (BRL). Ten projectile configurations having…
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