A Computational Study on the Aeroacoustics of a Multi-Rotor Unmanned Aerial System
Round 1
Reviewer 1 Report
The paper investigates the acoustics of an UAS. In general, the presentation is good. Some figures can be improved, such as Fig.5 and 6. The state-of-the-art contribution could be more clear. What is the gap in the literature that is filled by this study? Please add it to the introduction.
Author Response
The authors appreciate the reviewer's effort in reading the paper thoroughly and providing comments. The response to the individual comments is provided below.
- Some figures can be improved, such as Fig.5 and 6.
Response: The quality of figures was improved as requested.
- The state-of-the-art contribution could be more clear. What is the gap in the literature that is filled by this study? Please add it to the introduction.
Response: Explanation was added to the last paragraph of the introduction, highlighting the novelty of this study.
Reviewer 2 Report
The paper is excellent and it can be published as it is.
The authors may nevertheless check the following details.
1.- Under Abstract, page 1 line 19, maybe the CRD-3 should be defined, as it is in page 3 line 135.
2.- In page 3 equation 1, and in line 128, the D'Alembertian operator is seen as a square in the PFD file, I guess it is a mistake just arrange this detail please.
3.- In page 3 line 141, the weight and speed are given in English Units, the authors could put maybe in brackets the equivalent in SI units.
4.- In page 8 line 232, it would be welcome if the authors could define the parameter delta.
Authors must be congratulated for the excellent work they have done.
Author Response
The authors appreciate the reviewer's effort in reading the paper thoroughly and providing comments. The response to the individual comments is provided below.
- Under Abstract, page 1 line 19, maybe the CRD-3 should be defined, as it is in page 3 line 135.
Response: It is updated.
- In page 3 equation 1, and in line 128, the D'Alembertian operator is seen as a square in the PFD file, I guess it is a mistake just arrange this detail please.
Response: The D’Alembertian operator is shown by the same square symbol in reference [42] and many other studies and the authors have followed the same notation.
- In page 3 line 141, the weight and speed are given in English Units, the authors could put maybe in brackets the equivalent in SI units.
Response: Equivalent values in SI units were added accordingly.
- In page 8 line 232, it would be welcome if the authors could define the parameter delta.
Response: It is updated.
