Robust Optimization Design of the Aerodynamic Shape and External Ballistics of a Pulse Trajectory Correction Projectile
Round 1
Reviewer 1 Report
This paper focuses on trajectory correction projectiles with lateral pulses as the research object. It takes into account the inherent uncertain factors in engineering calculations and carries out a robust optimization design for the aerodynamic shape and exterior ballistics. The research is attractive for several engineering applications. The paper is quite well organized, and it has a good quality, however some requests can further improve its quality.
In the introduction you should add more references on aerodynamic CFD methods applications; moreover you should enlarge the part on the UQ works with also other recent applications.
In particular I suggest for example these references:
- Xia, L., Zou, Z. J., Wang, Z. H., Zou, L., & Gao, H. Surrogate model based uncertainty quantification of CFD simulations of the viscous flow around a ship advancing in shallow water. Ocean Engineering 2021, 234, 109206
- Cravero, C.; De Domenico, D.; Marsano, D. The Use of Uncertainty Quantification and Numerical Optimization to Support the Design and Operation Management of Air-Staging Gas Recirculation Strategies in Glass Furnaces. Fluids 2023, 8, 76.
- Cravero, C; De Domenico, D; Marsano, D. “Uncertainty Quantification Analysis of Exhaust Gas Plume in a Crosswind”. Energies, 2023, Vol. 16, Issue 8, p. 3549.
The optimization design process has been well described, as well as the rest of the theoretical foundation.
For the design problem you should ad more geometrical data also superimposed on a figure.
The mesh has been reported and a grid sensitivity analysis has been performed, however more details on the cells sizes must be provided (minimum, maximum, quality, prism layer?). Moreover the CFD model must be better described (models used, boundary condition, scheme order, etc..)
The results with also the validation are clear and accurate.
The conclusions well summarize the main target obtained.
Minor corrections
Author Response
Please see the attachment.
Author Response File: 
Author Response.docx
Reviewer 2 Report
This article is dedicated to a sound full subject but restricted to defense specialist.
The paper is well written and describe a high quality research work.
Nevertheless I would like to ask for some corrections before publications :
Citing 12 references in the same sentences without any real information about them is not the way to do (cf lines 31-32). Same remarks line 71. Speaking about references I think that ISL work especially from Gnemmi et al. and Nekris et al. should have been added to the references and even better discussed and compared to the present work.
I also would like to have more details about the CFD simulations : code used ? physical and numerical model used, mesh convergence study, y+, minimum space step size, cfl etc...
Author Response
Please see the attachment.
Author Response File: Author Response.docx
Reviewer 3 Report
Please see the attached file.
Comments for author File: Comments.docx
Minor revisions are required.
Author Response
Please see the attachment.
Author Response File: Author Response.docx
Round 2
Reviewer 1 Report
All my requestes have been correctly addressed and added in the revsied work. Now its is ready for the publication in this form, by having increased its quality
Author Response
Thanks for your comments.
Reviewer 3 Report
Please see attached file.
Comments for author File: 
Comments.pdf
Author Response
Please see the response in the attached file.
Author Response File: Author Response.docx
