描述重气泄漏扩散过程的新型模型

New model for heavy gas releasing dispersion analysis

在对现有重气扩散模型研究分析的基础上 ,建立了一种新型的描述重气泄漏扩散过程的模型—LTA HGDM。利用所建立的模型对ThroneyIslandTrials系列试验中的 7组代表不同类型大气环境下的现场试验进行了模拟 ,模拟结果同试验数据及IITHeavyGasModel模型的模拟结果进行了比较。结果表明 ,新建立的LTA HGDM模型具有形式简单、模拟精度较好、运算快捷等优点。通过对模拟结果进行分析讨论 。

A new heavy gas dispersion model-LTA HGDM was developed on the basis of analyzing the existing models. Using the LTA HGDM model, seven Throney Island Trials, which were different from each other in environment conditions, were simulated. The simulation results of LTA HGDM, IIT Heavy Gas Model and the test data are compared with each other. The comparison results indicated that the LTA HGDM has the advantages of simplicity, good simulation precision and quick calculation. Through analyzing and discussing the simulation results, the disadvantages of LTA HGDM and the main research contents and directions in the future in the field were also pointed out.