论文部分内容阅读
根据相似原理,提出了一种研究中性气体扩散的新方法——利用清水槽中的盐水流扩散来模拟大气中的气体扩散。选取适当的特征量,将盐水运动与气体运动的控制方程组无量纲化,分析两者间的相似性,得到了一系列量化的相似准则;讨论了模拟实验中满足相似准则的操作手段;讨论模拟烟气、重气与中性气体的技术区别;并根据一气体扩散事故设计了相应的模拟方案。气体扩散的水槽模拟具有直观准确、操作简单、重复性高、成本低廉、危险性小等优点,其发展将促进气体扩散的理论、实验研究,有利于安全生产和应急救援的发展。
Based on the principle of similarity, a new method for studying the diffusion of neutral gas is proposed, which is to simulate the gas diffusion in the atmosphere by using the diffusion of brine flow in a clear water tank. Select the appropriate characteristic quantities, the control equations of brine movement and gas movement are dimensionless, the similarity between the two is analyzed, and a series of quantitative similarity criteria are obtained; the operation methods that meet the similarity criterion in the simulation experiment are discussed; the discussion Simulate flue gas, heavy gas and neutral gas technology difference; and according to a gas diffusion accident designed the corresponding simulation program. Gas diffusion tank simulation has the advantages of direct and accurate, simple operation, high repeatability, low cost and low risk. Its development will promote the theoretical and experimental research on gas diffusion, and be conducive to the development of safety production and emergency rescue.