PONE-D-23-38272Mathematical Modeling and Performance Evaluation of Ducted Horizontal-axis Helical Wind Turbines: Insights into Aerodynamics and EfficiencyPLOS ONE

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Ashfaque Ahmed Chowdhury, Ph.D., FHEA, FIEB

Academic Editor

PLOS ONE

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Reviewer #1: Yes

Reviewer #2: No

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2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: N/A

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3. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: No

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Reviewer #1: No

Reviewer #2: No

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5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: Please take into consideration the attached comments in the PDF file and the following suggestions/questions to further enhance the quality of your work:

- Could you provide insights into the computational resources required for these simulations? How scalable is the model to handle larger or more complex turbine designs?

- I recommend considering a more descriptive heading for "2. Theory Review," perhaps something like "Theoretical Overview of Wind Turbine Performance" to better reflect the content and purpose of this section.

- Consider relocating Figure 2 to the "3. Methodology" section to improve the flow of information.

- The methodology relies on a control volume assumption. How sensitive is the model to variations in the shape and size of the control volume? It wasn't clear to me if different control volume configurations have been explored, and if so, what impact do they have on turbine performance analysis?

- In section 3.3, the fluid pressure is denoted as "p" in the text, but it doesn't appear in any equations. Consider using the "rho" Greek letter to denote fluid density for clarity and consistency in notation.

- How sensitive is the model to variations in temperature, and was the impact of temperature changes on fluid properties considered in the analysis?

- How does the simulation model account for dynamic changes in wind conditions? Are there considerations for transient simulations to capture the turbine's response to varying wind speeds?

- The duct material is specified as Polyvinyl Chloride (PVC). Could you discuss how the choice of duct material influences the simulation results? Were material properties, such as roughness, taken into account in the analysis?

- Some figures in the text appear to be written in lowercase.

- Some sections of the text use the first person ("we"). Consider revising these instances to the third person for a more formal and objective tone in scientific writing

Reviewer #2: The manuscript presents a numerical analysis on a ducted helical with horizontal axis.

- The motivation of the use of this kind of machine is not well described. What is the advantage in comparison with a classical ducted wind turbine? What is the advantage in comparison with a helical wind turbine with a vertical axis?

- The performance of the machine are not shown, the CP-lambda curves are not evaluated.

- The simple mechanical balance on ducted wind turbines are impenetrable, and a significant original contribution lacks.

- The bibliography review on ducted wind turbines misses important and recent works revealing the real potential of this kind of devices.

- The use of an ANN is not motivated.

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Reviewer #1: Yes: Paulo Mendes

Reviewer #2: No

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Attachments

Attachment

Submitted filename: PONE-D-23-38272.pdf

Mathematical Modeling and Performance Evaluation of Ducted Horizontal-axis Helical Wind Turbines: Insights into Aerodynamics and Efficiency

PONE-D-23-38272R1

Dear Dr. Shaikh,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

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Kind regards,

Ashfaque Ahmed Chowdhury, Ph.D., FHEA, FIEB

Academic Editor

PLOS ONE

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. If the authors have adequately addressed your comments raised in a previous round of review and you feel that this manuscript is now acceptable for publication, you may indicate that here to bypass the “Comments to the Author” section, enter your conflict of interest statement in the “Confidential to Editor” section, and submit your "Accept" recommendation.

Reviewer #1: All comments have been addressed

Reviewer #2: All comments have been addressed

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2. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

Reviewer #2: Yes

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3. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: N/A

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4. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: Yes

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5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: Yes

**********

6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: All my comments were addressed and no more comments are required to be addressed. The manuscript is ready for publication.

Reviewer #2: (No Response)

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7. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Reviewer #2: No

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