However, the flooding velocity in the actual production is difficult to predict. To solve the problem, many traditional models for prediction of the flooding velocity have been established after a long-term research. These models are based on the flooding mechanism and experiments. However, most of them require the specific empirical constants related to the packings under consideration [3]. Unfortunately, these constants are difficult to obtain for every packing element, which clearly illustrate a lack of generalization [4]. Also, with the rapid development of packings, there are more and more packing constants need to determine using experiments, which may be a time-and-energy-consuming task. This will restrict the pace of the growth of packings. Therefore, the traditional empirical models cannot meet the demand of engineering applications in a good performance.