**4. Conclusions**

In this paper, the mesh and parameters of the actuator line method with standard and anisotropic regularization kernel are studied. An experiment of the torque and wake characteristic was carried out, using hot-wire anemometer and borrowing the idea of frozen rotor method, to evaluate the simulation results. The relationship between Gaussian width , element size, attack angle of blade elements, and the simulation result of torque, and wake characteristic are discussed. The conclusion is as follows:


**Author Contributions:** Conceptualization, Z.M.; Formal analysis, Z.M.; Supervision, L.L. and P.Z.; Writing—original draft, Z.M.; Writing—review & editing, L.L., E.D. and P.Z. All authors have read and agreed to the published version of the manuscript.

**Funding:** This study was funded by National Natural Science Foundation of China (No.51875305) and Short-term Visiting Foundation of Tsinghua University (No.2018020).

**Conflicts of Interest:** The authors declare no conflict of interest.
