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Journal of Flow Visualization and Image Processing

年間 4 号発行

ISSN 印刷: 1065-3090

ISSN オンライン: 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

DUAL WAVELENGTH INTERFEROMETRY-BASED THREE-DIMENSIONAL SIMULTANEOUS RECONSTRUCTION OF TEMPERATURE AND CONCENTRATION FIELDS IN DOUBLE-DIFFUSIVE SYSTEMS: PART I

巻 25, 発行 3-4, 2018, pp. 163-189
DOI: 10.1615/JFlowVisImageProc.2018028739
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要約

The present study is concerned with the development and application of dual wavelength inter-ferometry technique for investigating the transients associated with the three-dimensional temperature and solutal fields in a heat-salt based double-diffusive convection system. The double-diffusive convection phenomenon has been arranged in an octagonal chamber. The dual color interferometer employs two distinct monochromatic lasers, i.e., He-Ne (λ1 = 632.8 nm) and Ar-ion (λ2 = 457.9 nm) as light sources, which individually map the refractive index fields in real time. Experiments have been reported with an initial stability ratio of Rρ ≈ 2.94. The operating experimental conditions constitute an initial concentration step of ΔCi = 0.2 (wt/wt)% and temperature differential of ΔT = 1°C at each horizontal wall. The projection data of the coupled thermal and solutal changes have been recorded in the form of dual-color interferograms from four view angles (0, 45, 90, and 135°). Results have been presented in the form of contour plots of retrieved thermal and solutal fields and reconstructed two-dimensional thermal and solutal fields at select horizontal planes. It has been observed that the diffusive layer convection system undergoes transition from quasi-steady mode convection to other modes of convection, which are functions of both temperature and salinity gradients. With decreasing stability ratio of the system, the thermal transport from the isothermal wall to the fluid layer increases, which leads to development of instabilities in the fluid layer and subsequently at the interface. The development of instabilities in the interface results in enhanced transport of heat and salt between the two layers. Despite the presence of lower levels of thermal gradients, the transition in the flow field and interface is affected by the salinity step at the interface.

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