Numerical Simulation on Drag Reduction of Micro-grooved Surface

As a relatively easy to process fluid surface drag reduction method, micro groove drag reduction is of great significance to ship sailing drag reduction. After the groove model was established, the numerical simulation method and the finite element simulation software were used to calculate the drag reduction rate of the groove model of specific size under different liquid flow rate, and the results of the change of drag reduction rate with the fluid flow rate were obtained.