Technical Note
Technical Note

Author: United States. National Advisory Committee for Aeronautics

Publisher:

Published: 1950

Total Pages: 440

ISBN-13:

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Analogy Between Mass and Heat Transfer with Turbulent Flow
Analogy Between Mass and Heat Transfer with Turbulent Flow

Author: Edmund E. Callaghan

Publisher:

Published: 1953

Total Pages: 724

ISBN-13:

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An analysis of combined heat and mass transfer from a flat plate has been made in terms of Prandtl's simpified physical concept of the turbulent boundary layer. The results of the analysis show that tor conditioins of reasonably small heat and mass transfer, the ratio of the mass- and heat-transfer coefficients is dependent on the Reynolds number of the boundary layer, the Prandtl number of the medium of diffusion, and the Schmidt number of the diffusing fluid in the medium of diffusion. For the particular case of water evaporating into air, the ratio of mass-transfer coefficient to heat-transfer coefficient is found to be slightly greater than unity.

The Effects of Sideslip, Aspect Ratio, and Mach Number on the Lift and Pitching Moment of Triangular, Trapezoidal, and Related Plan Forms in Supersonic Flow
The Effects of Sideslip, Aspect Ratio, and Mach Number on the Lift and Pitching Moment of Triangular, Trapezoidal, and Related Plan Forms in Supersonic Flow

Author: Arthur L. Jones

Publisher:

Published: 1949

Total Pages: 78

ISBN-13:

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The variations of lift and pitching moment with sideslip in supersonic flow have been calculated for a representative gorup of plan forms. The variations of lift and pitching moment with aspect ratio and Mach number at zero sideslip were also investigated. The analysis was based on linearized potential theory and was applied to triangular, trapezoidal, rectangular, and swept-back plan forms without dihedral.