Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface

A. M. Rathod; Chandrashekhar K. Jadhav; Rohit S. Tarte; Nitin P. Gulhane; Jan Taler; Dawid Taler; Pawel Oclon

Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface

Abstract

This study experimentally investigates the cooling rate of a jet impinging on a semi-circular grooved surface. The experiments aim to determine the magnitude of convective heat dissipation on this grooved surface, which is 6mm thick and features six evenly distributed circular grooves. The investigation considers various factors, including Reynolds numbers ranging from 4000 to 12000, clearance (z/d) between nozzle outlet to target plate, varying from 1 to 6, and the surface roughness of the plate. Local and average Nusselt numbers were calculated using experimental data on airflow behaviour in different areas of jet impingement. Compared to a smooth flat plate, the grooved surface showed a significant increase in both local and average Nusselt numbers, with the local Nusselt number increased by 11% and averaged Nusselt number by 15.23%. Heat transfer across various regions, including stagnant, transition, and wall jet, was studied under a uniform heat flux over a flat plate. Experimental results show that maximum heat dissipation occurs in the transition region for semi-circular grooved surfaces, while for smooth flat plates, it occurs in the stagnation region. The maximum percentage deviation was recorded as 15.23% with Reynolds number of 12000.

Keywords

References

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Details

Primary Language

English

Subjects

Fluid Mechanics and Thermal Engineering (Other)

Journal Section

Research Article

Authors

A. M. Rathod ^* This is me
0009-0008-6552-9032
India

Chandrashekhar K. Jadhav This is me
0009-0002-1069-6155
India

Rohit S. Tarte This is me
0009-0003-8801-0296
India

Nitin P. Gulhane This is me
0000-0002-1669-3943
India

Jan Taler This is me
0000-0002-6717-5599
Poland

Dawid Taler This is me
0000-0003-4341-8223
Poland

Pawel Oclon This is me
0000-0002-3361-6296
Poland

Publication Date

May 16, 2025

Submission Date

April 22, 2024

Acceptance Date

August 11, 2024

Published in Issue

Year 2025 Volume: 11 Number: 3

IZ

https://izlik.org/JA69LK26WA

Cite

RIS / Bibtex

APA

Rathod, A. M., Jadhav, C. K., Tarte, R. S., Gulhane, N. P., Taler, J., Taler, D., & Oclon, P. (2025). Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface. Journal of Thermal Engineering, 11(3), 811-823. https://izlik.org/JA69LK26WA

AMA

1.Rathod AM, Jadhav CK, Tarte RS, et al. Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface. Journal of Thermal Engineering. 2025;11(3):811-823. https://izlik.org/JA69LK26WA

Chicago

Rathod, A. M., Chandrashekhar K. Jadhav, Rohit S. Tarte, et al. 2025. “Heat Transfer Enhancement by Laterally Impinging Air Jet on Semi-Circular Grooved Surface”. Journal of Thermal Engineering 11 (3): 811-23. https://izlik.org/JA69LK26WA.

EndNote

Rathod AM, Jadhav CK, Tarte RS, Gulhane NP, Taler J, Taler D, Oclon P (May 1, 2025) Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface. Journal of Thermal Engineering 11 3 811–823.

IEEE

[1]A. M. Rathod et al., “Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface”, Journal of Thermal Engineering, vol. 11, no. 3, pp. 811–823, May 2025, [Online]. Available: https://izlik.org/JA69LK26WA

ISNAD

Rathod, A. M. - Jadhav, Chandrashekhar K. - Tarte, Rohit S. - Gulhane, Nitin P. - Taler, Jan - Taler, Dawid - Oclon, Pawel. “Heat Transfer Enhancement by Laterally Impinging Air Jet on Semi-Circular Grooved Surface”. Journal of Thermal Engineering 11/3 (May 1, 2025): 811-823. https://izlik.org/JA69LK26WA.

JAMA

1.Rathod AM, Jadhav CK, Tarte RS, Gulhane NP, Taler J, Taler D, Oclon P. Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface. Journal of Thermal Engineering. 2025;11:811–823.

MLA

Rathod, A. M., et al. “Heat Transfer Enhancement by Laterally Impinging Air Jet on Semi-Circular Grooved Surface”. Journal of Thermal Engineering, vol. 11, no. 3, May 2025, pp. 811-23, https://izlik.org/JA69LK26WA.

Vancouver

1.A. M. Rathod, Chandrashekhar K. Jadhav, Rohit S. Tarte, Nitin P. Gulhane, Jan Taler, Dawid Taler, Pawel Oclon. Heat transfer enhancement by laterally impinging air jet on semi-circular grooved surface. Journal of Thermal Engineering [Internet]. 2025 May 1;11(3):811-23. Available from: https://izlik.org/JA69LK26WA