Parametric studies with an atmospheric diffusion model that assesses toxic fuel hazards due to the ground clouds generated by rocket launches

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论文 Parametric studies with an atmospheric diffusion model that assesses toxic fuel hazards due to the ground clouds generated by rocket launches 简介
摘要:Parametric studies were made with a multilayer atmospheric diffusion model to place quantitative limits on the uncertainty of predicting ground-level toxic rocket-fuel concentrations. Exhaust distributions in the ground cloud, cloud stabilized geometry, atmospheric coefficients, the effects of exhaust plume afterburning of carbon monoxide CO, assumed surface mixing-layer division in the model, and model sensitivity to different meteorological regimes were studied. Large-scale differences in ground-level predictions are quantitatively described. Cloud alongwind growth for several meteorological conditions is shown to be in error because of incorrect application of previous diffusion theory. In addition, rocket-plume calculations indicate that almost all of the rocket-motor carbon monoxide is afterburned to carbon dioxide CO2, thus reducing toxic hazards due to CO. The afterburning is also shown to have a significant effect on cloud stabilization height and on ground-level concentrations of exhaust products. 作者 Stewart, R. B., Grose, W. L.,
关键字 AFTERBURNING, ATMOSPHERIC DIFFUSION, ATMOSPHERIC MODELS, CARBON MONOXIDE, DIFFUSION COEFFICIENT, DIFFUSION THEORY, GROUND EFFECT (AERODYNAMICS), ROCKET EXHAUST, ROCKET LAUNCHING, TOXIC HAZARDS,
范例 Technical Report
来源 NASA,NTRS, 1975/05/01
语言 English(英语)
大小 2794048 Bytes

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