本文研究了沿水深积分流动中回流的数值模拟问题。分析表明:尽管许多情况下数学模型能提供似乎实际的结果,但实际上是不会发生的。这个疑题关系到这个问题的稳定性和疑题的解决,更进一步地讲与逻辑数学的疑题有关。本文从语言、渗透、流线及流动和模型的维数等方面来研究回流疑题。 In this paper, we study the numerical simulation of backflow in integrated water depth. The analysis shows that while in many cases a mathematical model can provide plausible results, it does not actually happen. This question relates to the stability of the issue and the solution to the problem, and further to the question of mathematical logic. This article studies the problem of backflow from aspects of language, penetration, flow and flow, and the dimensionality of the model.