Efficacy of existing transient models for spill area forecasting

Efficacy of all the existing transient models for forecasting the area attained by accidentally spilled liquid fuels has been sought to be assessed on the basis of experimental data available in prior art. Of the two models for which required inputs are available in the prior art, the model of Huppert (1982) is able to forecast spill area with much greater precision than the model of Raj and Kalelkar (1974). Both the models give better predictions when the spill volume is higher and the spill duration is lower but neither model yields a correlation between the accuracy of the spill area forecast and the nature of the spilled liquid or the receiving surface.