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Heat Transfer Research

Publicou 18 edições por ano

ISSN Imprimir: 1064-2285

ISSN On-line: 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

JET ARRAY IMPINGEMENT COOLING LOCAL NUSSELT NUMBER VARIATIONS: EFFECTS OF HOLE ARRAY SPACING, JET-TO-TARGET PLATE DISTANCE, AND REYNOLDS NUMBER

Volume 47, Edição 2, 2016, pp. 119-140
DOI: 10.1615/HeatTransRes.2015011198
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RESUMO

Discussed in the article are the combined and separate effects of hole array spacing, jet-to-target plate distance, and Reynolds number on the local surface heat transfer rate for an impinging jet array. The array of impinging jets is directed to one flat surface of a channel which is bounded on three sides. Considered are the Reynolds numbers ranging from 8000 to 50,000, jet-to-target plate distances of 1.5D, 3.0D, 5.0D, and 8.0D, and the streamwise and spanwise hole spacing of 5D, 8D, and 12D, where D is the impingement hole diameter. Also included is a conduction analysis of the impingement cooling array target surface. In general, the local Nusselt numbers generally increase at each x/D location as either the Reynolds number increases, or as the X/D = Y/D hole spacing decreases. The highest Nusselt numbers are generally present at Z/D = 3.0 for Rej values of 8200, 20,000, and 30,000. When Rej = 52,000, the highest measured Nusselt number values are generally present for Z/D of either 1.5, 3.0, or 5.0, depending on the magnitudes of Rej, X/D, Y/D, and streamwise location x/D. The cumulative accumulations of crossflows, from sequential rows of jets, result in sequentially decreasing periodic Nusselt number variations with streamwise development. When examined at a particular value of Rej, the streamwise locations of the local maximum Nusselt numbers also shift to larger x/D locations as Z/D, the normalized jet-to-target distance, increases. The overall result is a complex dependence of local Nusselt numbers on the hole array spacing, jet-to-target plate distance, and impingement jet Reynolds number.

CITADO POR
  1. Mao Junkui, Yao Tian, Han Xingsi, He Zhenzong, He Kang, Numerical study of the radiation effect on the jet array impinging heat transfer in a feeding pipe, Numerical Heat Transfer, Part A: Applications, 73, 2, 2018. Crossref

  2. Chen Lingling, Brakmann Robin G.A., Weigand Bernhard, Crawford Michael, Poser Rico, Detailed heat transfer investigation of an impingement jet array with large jet-to-jet distance, International Journal of Thermal Sciences, 146, 2019. Crossref

  3. Frederick Robert A., Thomas Lawrence, Ligrani Phillip M., Propulsion Research and Academic Programs at the University of Alabama in Huntsville - 30th Anniversary Summary, AIAA Propulsion and Energy 2021 Forum, 2021. Crossref

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