A review of binary boundary layer characteristics.

Joseph Francis Gross, J. P. Hartnett, David J. Masson, Carl Gazley

ResearchPublished 1959

An examination of the binary boundary-layer problem in connection with providing better estimates of surface-cooling methods for use with hypersonic vehicles, such as ICBM nose cones. A binary boundary layer is one in which some foreign substance has been injected to alter the properties of the flow, notably its heat-transfer characteristics. The mechanism of laminar binary boundary-layer flow is discussed in mathematical terms, and five different analyses involving a variety of injected substances are reviewed. Generalized expressions are then developed for predicting heat-transfer and skin-friction performance in the presence of mass-transfer cooling for laminar flow over a flat plate. The results indicate that different foreign materials (e.g., hydrogen, carbon dioxide, and iodine vapor) injected into the boundary-layer stream reduce heat-transfer and skin-friction coefficients by an amount that depends on the molecular weight of the injected material. In conclusion, mass-transfer cooling in a turbulent boundary layer and sublimation cooling are considered.

Document Details

  • Copyright: RAND Corporation
  • Availability: Web Only
  • Year: 1959
  • Pages: 111
  • Document Number: RM-2516

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Gross, Joseph Francis, J. P. Hartnett, David J. Masson, and Carl Gazley, A review of binary boundary layer characteristics. Santa Monica, CA: RAND Corporation, 1959. https://www.rand.org/pubs/research_memoranda/RM2516.html.
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