ANALOG COMPUTER RESEARCH INTO THE ENERGY-EXCHANGE BETWEEN GASES AND SOLIDS.
JOHNS HOPKINS UNIV BALTIMORE MD
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A comparison is made between various models of the interaction. A description is given of the circuitry and techniques used to investigate the problem of energy exchange between gases and solids. Bounds on the applicability and interpretation of data obtained solely from computational experiments, whether performed with an analog or a digital computer, are delineated in some detail. Data are presented which was obtained in a series of analog computer experiments in gas surface interactions using several variations of a very simple model of the interaction potential, the lattice, and the physical state of the solid, particularly temperature. For the majority of the research, a non-linear coupling potential was used between gas particles and surface atom. Several major approximations were made in the formulation of the models investigated.