CAJ | 학술논문

由于重气效应的存在，重气的泄漏和扩散的危险性较之轻气更为严重。在单源SLAB模型的基础上发展了多源重气扩散模型，并对单源和多源重气在连续泄漏和瞬时泄漏两种泄漏模式下的扩散都进行了模拟研究。以氯气泄漏为研究算例，计算得到了相应条件下下风向的时均浓度分布情况，结合毒性标准给出了不同毒性水平下的事故后果影响范围，从而可以为应急救援和疏散决策制定提供理论指导。
유우중기효응적존재，중기적설루화확산적위험성교지경기경위엄중。재단원SLAB모형적기출상발전료다원중기확산모형，병대단원화다원중기재련속설루화순시설루량충설루모식하적확산도진행료모의연구。이록기설루위연구산례，계산득도료상응조건하하풍향적시균농도분포정황，결합독성표준급출료불동독성수평하적사고후과영향범위，종이가이위응급구원화소산결책제정제공이론지도。
The risk from the leakage and dispersion of heavy gas is much more serious than that of light gas due to the existence of heavy gas effect .A multi-source dispersion model of heavy gas was developed on the basis of a single SLAB model .And the dispersion behaviors of single and multi-source heavy gas at the mode of continuous and instantaneous leakage were simulated .Then ,with a case study of chlorine ,the downwind time-averaged concentration distribution under corresponding conditions was calculated . Further ,combined with the toxicity criteria ,the accident-affected areas at different toxic levels were presented to provide theoretical guidance for emergency rescue and evacuation decision-making .