Showing papers by "E. R. G. Eckert published in 1980"
TL;DR: In this article, an analysis was performed which describes the moisture migration in a slab of an unsaturated porous material for the condition that the temperature of one surface is suddenly increased to a higher value whereas the other surface is maintained constant.
65 citations
TL;DR: In this paper, an analytical solution for the one-dimensional moisture migration in a slab of porous material under the influence of temperature gradients is presented, which is relevant to such problems as the moisture redistribution in soil under a influence of solar heat, the moisture migrating in the vicinity of earth sheltered structures, the measurement of transport properties of porous materials and others.
28 citations
TL;DR: In this paper, the authors measured the total pressure loss of the flow through a two-dimensional turbine cascade with "coolant" injection from a single row of holes on the suction or pressure side of the blades.
Abstract: Experiments have been performed to measure the total pressure loss of the flow through a two-dimensional turbine cascade with “coolant” injection from a single row of holes on the suction or pressure side of the blades. The tests were performed in a low speed tunnel. Air and carbon dioxide were used as secondary fluids, the latter to provide a large density difference between the gas in the mainstream and the injected gas. Both gas streams had the same temperature. The measured pressure loss is in good agreement with analytical predictions based on a model introduced by Hartsel. The results thus provide information which can be incorporated in a program which predicts the influence of injection on the aerodynamic efficiency of a gas turbine.
26 citations