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• W4319067317 abstract "This paper deals with the numerical investigation of split hemispherical fins mounted staggered over a base plate. The thermal and flow analyses have been carried out to evaluate the Nusselt number (Nu), pressure drop <math xmlns=http://www.w3.org/1998/Math/MathML id=M1> <mfenced open=( close=)> <mrow> <mi>Δ</mi> <mi>P</mi> </mrow> </mfenced> </math> , and hydrothermal performance factor (HTPF) with air as a medium and Reynolds number ( <math xmlns=http://www.w3.org/1998/Math/MathML id=M2> <mi mathvariant=normal>Re</mi> <mo>=</mo> <mo>/</mo> <mn>3000</mn> </math> to 15000). The cylindrical fin (CF) and hemispherical fin (HF, of radius <math xmlns=http://www.w3.org/1998/Math/MathML id=M3> <mi>R</mi> </math> ) of the same volume and height have been formed and placed in the computational domain. Results reveal that the Nu for CF compared to HF is 1.3-1.4 times higher, with approximately 1.5 times higher <math xmlns=http://www.w3.org/1998/Math/MathML id=M4> <mi>Δ</mi> <mi>P</mi> </math> for the given Re range. The value of HTPF for HF is greater than unity (/1.13-1.20) for all the considered Re values. Secondly, the HF gets split into longitudinal and transverse flow directions for better solid-fluid interaction. The geometrical parameters are transverse offset TO (/= <math xmlns=http://www.w3.org/1998/Math/MathML id=M5> <mn>0</mn> <mo>−</mo> <mi>R</mi> <mo>/</mo> <mn>8</mn> </math> ), longitudinal offset LO (/= <math xmlns=http://www.w3.org/1998/Math/MathML id=M6> <mn>0</mn> <mo>−</mo> <mi>R</mi> <mo>/</mo> <mn>8</mn> </math> ), and Re. Results show that the highest value of Nu (/=384.10) and HTPF (/=1.33) have been obtained at <math xmlns=http://www.w3.org/1998/Math/MathML id=M7> <mtext>TO</mtext> <mo>=</mo> <mi>R</mi> <mo>/</mo> <mn>10</mn> </math> (at LO =0) and <math xmlns=http://www.w3.org/1998/Math/MathML id=M8> <mtext>TO</mtext> <mo>=</mo> <mi>R</mi> <mo>/</mo> <mn>10</mn> </math> (at <math xmlns=http://www.w3.org/1998/Math/MathML id=M9> <mtext>LO</mtext> <mo>=</mo> <mi>R</mi> <mo>/</mo> <mn>10</mn> </math> ) for the highest Re (/=15000). At last, the cuckoo search algorithm (CSA) coupled with the response surface method (RSM) has been performed to fetch the optimum value of Nu based upon dimensionless TO <math xmlns=http://www.w3.org/1998/Math/MathML id=M10> <msup> <mrow /> <mrow> <mo>∗</mo> </mrow> </msup> </math> , dimensionless LO <math xmlns=http://www.w3.org/1998/Math/MathML id=M11> <msup> <mrow /> <mrow> <mo>∗</mo> </mrow> </msup> </math> , and Re. The optimum value (obtained at <math xmlns=http://www.w3.org/1998/Math/MathML id=M12> <msup> <mrow> <mtext>TO</mtext> </mrow> <mrow> <mo>∗</mo> </mrow> </msup> <mo>=</mo> <mn>0.1</mn> </math> , <math xmlns=http://www.w3.org/1998/Math/MathML id=M13> <mtext>L</mtext> <msup> <mrow> <mtext>O</mtext> </mrow> <mrow> <mo>∗</mo> </mrow> </msup> <mo>=</mo> <mn>0</mn> </math> , and <math xmlns=http://www.w3.org/1998/Math/MathML id=M14> <mi mathvariant=normal>Re</mi> <mo>=</mo> <mn>15000</mn> </math> ) of Nu (=/392.16) from CSA is promising, with the numerically obtained Nu value (=/384.1059) with an error of 2.05%." @default.
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• W4319067317 date "2023-02-03" @default.
• W4319067317 modified "2023-10-01" @default.
• W4319067317 title "Numerical and Optimization-Based Study on Split Hemispherical Shaped Fins for Augmenting Heat Transfer Rate" @default.
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• W4319067317 doi "https://doi.org/10.1155/2023/8300877" @default.
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