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International Journal of Fluid Mechanics Research

Publicou 6 edições por ano

ISSN Imprimir: 2152-5102

ISSN On-line: 2152-5110

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: 1.1 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: 1.3 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: 0.0002 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: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Flow Behavior in a Curved Converging Diverging Duct Employed in a Dye Laser

Volume 42, Edição 1, 2015, pp. 39-58
DOI: 10.1615/InterJFluidMechRes.v42.i1.40
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RESUMO

In this paper the flow behavior in a converging diverging curve duct used in a high stability dye laser pumped by Copper Vapour Laser(CVL) is presented at different angular positions. The flow duct is formed by two eccentric cylinders of finite height. The channel aspect ratio and effective curvature ratio varies from 1 to 50, and 1 to 81, respectively, along the flow path. The flow behaviors at different sections of test duct are studied numerically and experimentally using a dye solvent mixture of 70 % glycol and 30 % ethanol. It is shown that the average values and variation of eddy sizes gradually reduces along the flow path till CVL pump position and then gradually increases. A non linear CFD turbulence model is used to get enhanced numerical results for accelerating curved flow. The numerically estimated average values of turbulent kinetic energy and its dissipation rate at different angular positions are compared with the intensity variation of He Ne laser passing through the flow. The flow field tends to become more stable at higher Reynolds number and at lowest hydraulic diameter (CVL pump position). The average variation of flow and temperature inhomogeneities in boundary layer at CVL pump position reduces with the increase in flow rate. The variation in dye laser band width and wave length is correlated with flow and temperature induced inhomogeneities for different flow speed.

CITADO POR
  1. Rawat V.S., Kawade Nitin, Manohar K.G., Single longitudinal mode oscillations in the converging-straight-diverging dye cell pumped by a 9 kHz copper vapor laser, Optics Communications, 382, 2017. Crossref

  2. Mishra S K, Rana Paramjit, Sahoo Siba P, Kawade Nitin O, Rawat V S, Characterization of dye cells for a high-repetition-rate pulsed dye laser by particle image velocimetry (PIV), Laser Physics, 29, 6, 2019. Crossref

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