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Journal of Flow Visualization and Image Processing

Published 4 issues per year

ISSN Print: 1065-3090

ISSN Online: 1940-4336

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: 0.6 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: 0.00013 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: 0.14 SJR: 0.201 SNIP: 0.313 CiteScore™:: 1.2 H-Index: 13

Indexed in

VISUALIZATION OF LOCAL HEAT TRANSFER IN A PIN FIN CHANNEL WITH LIQUID CRYSTALS

Volume 2, Issue 3, 1995, pp. 267-283
DOI: 10.1615/JFlowVisImageProc.v2.i3.70
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ABSTRACT

Thermochromic liquid crystals and an Inconel foil heater were used to map the detailed local heat transfer distributions in a rectangular pin fin channel with ejection holes along one side wall and the end wall. The staggered array of pins had 12 alternate rows of three and two pins. The pin height-to-diameter ratio was 1.0 and the spacings between two adjacent pins was 2.5 times the pin diameter. Results were obtained for Reynolds numbers based on the pin diameter and maximum velocity in the pin fin channel of approximately 25,000, 40,000, 60,000, and 90,000. The local heat transfer coefficient was generally low in the first row, high in the third and fourth rows, and decreased downstream of the fifth row of pin fins along the channel, as air exited through the ejection holes. The local heat transfer coefficient was very high at the bases of the pins, relatively high near the ejection holes, and was the lowest near the corner between the side wall with the ejection holes and the end wall. The heat transfer coefficient distributions with and without end wall flow ejection differed very little over the upstream half of the channel. Near the end wall, however, the heat transfer distributions were very different, with lower values but slightly larger variations in the case of no end wall flow ejection. Under the conditions of the present investigation, the relative local Nusselt number distribution appeared to be independent of the flow Reynolds number.

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