Accession Number : AD0861454

Title :   Conclusions from Heat Transfer Measurements on the Hydrodynamic Behavior of the Phase Boundary Between Two Fluids,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s) : Linde, H. ; Loeschcke, K.

Report Date : 18 MAR 1969

Pagination or Media Count : 13

Abstract : Heat transfer coefficients between two fluids permit the characterization of the material transfer under the same forced convection conditions, provided that the phase boundary is clean and is covered by a film of surface-active substances, or if the phase boundary is subjected to the effect of material transfer with Marangoni stability. Such characterization is not possible in the case of boundary-surface convection free from Marangoni instability. The tests on which these conclusions are based were conducted with a special interferometer equipped with sinusoidally oscillating stirrers measuring the temperature differentials between two phases (isoamyl alcohol/water, cyclohexanol/water, cyclohexane/water, and carbon tetrachloride/water; with saponine as the surface-active substance in some of the determinations). (Author)

Descriptors :   *HEAT TRANSFER), (*FLUID FLOW, MASS TRANSFER, INTERFACES, BOUNDARY LAYER, HEAT TRANSFER COEFFICIENTS, SURFACE ACTIVE SUBSTANCES, STABILITY, CARBON TETRACHLORIDE, CYCLOHEXANES, CYCLOHEXANOLS, WATER, PENTANOLS, EAST GERMANY.

Subject Categories : Fluid Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE