In this paper, the authors have described a new analytical method to determine the eddy viscosity from LES and wind tunnel experiments. The authors incorporated the eddy viscosity model with with an engineering wake model and compared the results with that from LES. Overall, this paper is well-written, proposes a novel idea to determine eddy viscosity and have great potential to improve the accuracy of evaluations of wind farm wake. I really enjoyed reading it. Overall, I recommend publication in Wind Energy Science, but I think some very minor adjustments and comments might further improve this paper.

1. Starting Line 12 and multiple instances: Please provide reference and/or define "hybrid wake model".

2. Line 46 -- 48: LES simulations  -> LES

3. Equation 2: Please add when i≠j. When i=j, the full form of Boussinesq approximation has a term of 2/3 k.

4. Line 147: How did you normalize eddy viscosity? Please add it in the main text.

5. Overall comment for Section 3.2, 4.1 and 4.2: It may be helpful if more runs for LES are performed with different thrust coefficients for the wind turbine the coefficient σ in Eq 14 is obtained in a statistical way. 

6. Overall comment for Section 5: The proposed eddy viscosity model comes from for neutral ABL. Just curious whether the authors are planning to verify whether the proposed model still works under different atmospheric stability conditions.