Experimental and numerical investigation of flow and heat transfer characteristics of teardrop and circular pin fins in a wedge channel

G, Venkatesh; R, Meenakshi Reddy

doi:10.1080/08916152.2024.2392808

Experimental Heat Transfer

2024

DOI: 10.1080/08916152.2024.2392808

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Experimental and numerical investigation of flow and heat transfer characteristics of teardrop and circular pin fins in a wedge channel

Venkatesh G,

Meenakshi Reddy R

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2024

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References 26 publications

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Thermal performance of teardrop pin fins and zig zag ribs in a wedge channel

Venkatesh,

Meenakshi Reddy

2024

International Journal of Turbo &Amp; Jet-Engines

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Aviation, marine propulsion, and power generation employ gas turbine engines extensively. The combustion process’s high temperatures make gas turbine engine development difficult. For safe turbine blade operation, internal cooling is essential. Ribs, pin-fins, and impinging jets are just examples of the several different types of structures that are typically included in internal cooling systems. The present study investigates the effect of rib placed in between the pin fins in a wedge channel. Nine rib configurations along with base line model without ribs are employed in this study. The SST k-omega turbulence model was employed to simulate the flow field and heat transfer of each case using the commercial software ANSYS Fluent. The investigation demonstrated that the heat transfer distribution and flow field in pin-fin arrays were substantially influenced by the ribs-induced secondary flows, particularly in the spanwise direction, which resulted in a significant heat transfer variation. In comparison to other configurations, the 4H4L rib configuration exhibits the highest thermal performance factor, surpassing the baseline by approximately 16.6 %.

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Thermal performance of teardrop pin fins and zig zag ribs in a wedge channel

Venkatesh,

Meenakshi Reddy

2024

International Journal of Turbo &Amp; Jet-Engines

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Experimental and numerical investigation of flow and heat transfer characteristics of teardrop and circular pin fins in a wedge channel

Cited by 1 publication

References 26 publications

Thermal performance of teardrop pin fins and zig zag ribs in a wedge channel

Thermal performance of teardrop pin fins and zig zag ribs in a wedge channel

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