中文说明：基于LBM圆柱绕流模拟matlab程序代码，简单几行代码就可以实现圆柱绕流的可视化模拟，而且还是实时的，采用D2Q9模型，适合初学者学习。
English Description：
Based on the LBM simulation of the flow around a cylinder matlab program code, a few simple lines of code can achieve the visual simulation of the flow around the cylinder, but also real-time, using D2Q9 model, suitable for beginners to learn.