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Journal of Enhanced Heat Transfer

Publicado 8 números por año

ISSN Imprimir: 1065-5131

ISSN En Línea: 1563-5074

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: 2.3 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: 1.8 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: 0.2 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: 0.00037 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: 0.6 SJR: 0.433 SNIP: 0.593 CiteScore™:: 4.3 H-Index: 35

Indexed in

ENHANCEMENT OF HEAT TRANSFER BY OUT-OF-PHASE SELF-VIBRATION THROUGH FLUID STRUCTURE INTERACTION

Volumen 27, Edición 7, 2020, pp. 643-663
DOI: 10.1615/JEnhHeatTransf.2020034352
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SINOPSIS

A numerical simulation of fluid structure interaction effects on vortex dynamics and heat transfer was performed in a rectangular channel with two plates mounted symmetrically across from one another on two channel walls. The two plates can both be rigid (configuration 1), plate 1 can be flexible while plate 2 is rigid (configuration 2), or both can be flexible (configuration 3). The vorticity and temperature contours, Nusselt number, friction factor, and overall performance coefficient for the three configurations are compared at three Reynolds numbers (630, 840, and 1050). The flow in configuration 1 is susceptible to pitchfork bifurcation: steady asymmetric vortices in the channel can be easily seen due to numerical round-off errors or initial conditions even when the geometry and mesh are totally symmetric. When only plate 1 is flexible in configuration 2, this can induce vortex shedding at higher Reynolds numbers and improved heat transfer. When both plates are flexible in configuration 3, the flow experiences Hopf bifurcation, which significantly improves the time-averaged Nusselt number and overall performance coefficient due to the consistent and periodic vortex shedding in the channel caused by the out-of-phase self-vibration of the two plates. This article provides an innovative approach to take full advantage of the fluid structure interaction process to improve the heat transfer of a channel.

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