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Heat Transfer Research

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ISSN Druckformat: 1064-2285

ISSN Online: 2162-6561

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.6 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00072 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.43 SJR: 0.318 SNIP: 0.568 CiteScore™:: 3.5 H-Index: 28

Indexed in

NUMERICAL STUDY OF THERMAL ENHANCEMENT IN MODIFIED RACCOON MICROCHANNELS

Volumen 50, Ausgabe 6, 2019, pp. 519-543
DOI: 10.1615/HeatTransRes.2018027061
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ABSTRAKT

An improved design of raccoon microchannel heat sink with a combined change in wave amplitude and wavelength along the channel length is proposed in this work. A three-dimensional conjugate heat transfer model studies the characteristics of fluid flow and heat transfer numerically. The total channel length is divided into three zones of equal length where the channel expansion factor (α) and waviness (γ) are varied in each zone to create six sets of modified raccoon microchannels (MRMC). The results indicate that changing the waviness (γ) along an equally divided length of the channel in MRMC contributed to disturbance of the core fluid region and intensified the mixing of laminar boundary layer that enhances the thermal performance of the microchannel. The assessment of MRMC is based on the thermal performance factor (η), and the results indicate that there exists an optimal combination of wave amplitude and wavelength arrangement along the channel length, which has an additive effect on the thermal performance. The Nusselt number and friction factor of the new heat-sink design is well demonstrated by comparison with the simple raccoon microchannel (SRMC). In addition, a wide range of parametric variations is also considered to indicate the axial wall conduction effect in raccoon microchannels.

REFERENZIERT VON
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  2. Tiwari Nishant, Moharana Manoj Kumar, Comparative study of conjugate heat transfer in a single-phase flow in wavy and raccoon microchannels, International Journal of Numerical Methods for Heat & Fluid Flow, 30, 7, 2019. Crossref

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