Showing papers on "Slip ratio published in 1979"
TL;DR: In this paper, the effect of slip velocity at a membrane surface is studied in detail for a tubular membrane system, and a second-order perturbation solution of the equations of motion is found to be very satisfactory.
80 citations
TL;DR: In this article, the velocity slip and temperature difference were examined using two-temperature thirteen moment equations and it was shown that velocity slip becomes maximum just beyond the throat and the temperature difference is appreciable in the supersonic flow regions.
Abstract: The velocity slip and temperature difference are examined using two‐temperature thirteen moment equations. It is shown that the velocity slip becomes maximum just beyond the throat and the temperature difference is appreciable in the supersonic flow regions.
11 citations
01 Jan 1979
TL;DR: In this paper, the first high-temperature two-phase liquid-metal MHD generator under open-circuit conditions was presented, where both single phase (sodium and nitrogen) and two phase flows were used in the temperture range of approx. 490 to approx. 740/sup 0/K.
Abstract: Detailed data were obtained for the world's first high-temperature two-phase liquid--metal MHD generator under open-circuit conditions. Both single-phase (sodium) and two-phase (sodium and nitrogen) flows were used in the temperture range of approx. 490 to approx. 740/sup 0/K. The data presented includes pressures, voltages, and slip ratios (ratio of gas velocity to liquid velocity). The two-phase pressure--gradient data were predicted well by a simplified two-phase MHD correlation that includes the effect of a pure-liquid shunt layer between the electrodes. The slip ratio is shown to decrease with increasing temperature, implying higher generator and system efficiencies; this anticipated result was a prime reason for performing these experiments.
4 citations
01 Jan 1979
TL;DR: In this article, the influence of the body and shock slip conditions on the heating of a Jovian entry body is investigated and the results indicate that the effect of the slip conditions is significant when the altitudes are higher than 225 km and that the contribution of radiative heat-flux term in the energy equation should not be neglected at any altitude.
Abstract: The influence of the body and shock slip conditions on the heating of a Jovian entry body is investigated. The flow in the shock layer is considered to be axisymmetric, steady, laminar, viscous, and in chemical equilibrium. Realistic thermophysical and step-function spectral models are employed and results are obtained by implicit finite-difference and iteractive procedures. The freestream conditions correspond to a typical Jovian entry trajectory point. The results indicate that the effect of the slip conditions is significant when the altitudes are higher than 225 km and that the contribution of a radiative heat-flux term in the energy equation should not be neglected at any altitude.
2 citations