This Memorandum presents a simplified analysis of binary boundary-layer flow on a flat plate. A simple computational method previously used by Meksyn has been extended and applied to the present problem. Analytical formulas of skin friction, surface mass transfer, and heat trans fer are derived. The effects on skin friction of various parameters, such as P (Prandtl number), L (Lewis number), and molecular-weight ratio, and heat transfer in binary boundary layers are exhibited explicitly in these analytical formulas. The results agree well with more exact numerical calculations. In addition, some int coupling of viscosity, heat con duction, and diffusion is exhibited-for ex ample, coupling between recovery temperature and skin friction, and coupling between conduc tive heat transfer and diffusion effects. (Author).

The equations relating to laminar binary boundary layer flow are solved approximately, in accordance with the boundary conditions for vectorial injection. Expressions for the skin friction and heat transfer coefficients are derived, together with their normalized representations. (Author).

Abstract: The method presented in NACA TN 2692 for evaluating the skin friction of a turbulent boundary layer in compressible flow on an insulated surface is extended to evaluate the turbulent skin friction and heat transfer in compressible flow on a surface which is heated or cooled. The results of this analysis are in good agreement with the heat transfers measured in flight on the NACA RM-10 missile up to Mach number of 3.8.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.