Numerical Analysis and Parametric Optimization of a Static Wavy Flag for Heat Transfer Enhancement

1
Swadesh Suman
Swadesh Suman
2
Sanjay Mahadev Gaikwad
Sanjay Mahadev Gaikwad
1 Army Institute of Technology

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This work investigates the effect of different parameters of a static wavy flag vortex generator on the heat transfer in a rectangular channel using Computational Fluid Dynamics (CFD) analysis. This work encompasses optimizing several parameters of a flag such as flag height from the surface, position in the channel, number of triangular shapes in a flag, and rectangular surface area of the flag. Post analysis results exhibit encouraging results with average Nusselt number in flag height (FH) optimization exceeding that in no flag condition by 41.84%, 47.79%, 54.68% for Re 8236, 12354, and 18344, respectively whereas further position optimization of FH optimized flag exceeds average Nusselt number in no flag condition by 46.86%, 70.68% and 87.26% for the corresponding Re. With significantly less practical application of flags for heat transfer enhancement in industry, this work aims to establish flags as an effective heat transfer enhancement device and demonstrate that with the right optimized parameters, a significant increase of heat transfer in the channel can be achieved.

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No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

Swadesh Suman. 2026. \u201cNumerical Analysis and Parametric Optimization of a Static Wavy Flag for Heat Transfer Enhancement\u201d. Global Journal of Research in Engineering - A : Mechanical & Mechanics GJRE-A Volume 22 (GJRE Volume 22 Issue A2): .

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Enhanced heat transfer with a static wavy flag for better heat dissipation.
Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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GJRE-A Classification: DDC Code: 621.4022 LCC Code: TJ260
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v1.2

Issue date

August 30, 2022

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English

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Numerical Analysis and Parametric Optimization of a Static Wavy Flag for Heat Transfer Enhancement

Swadesh Suman
Swadesh Suman Army Institute of Technology
Sanjay Mahadev Gaikwad
Sanjay Mahadev Gaikwad

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