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International Journal of Fluid Mechanics Research

Publication de 6  numéros par an

ISSN Imprimer: 2152-5102

ISSN En ligne: 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

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Unsteady Free Convective Viscoelastic Boundary Layer Flow Past a Vertical Porous Plate with Internal Heat Generation/Absorption

Volume 33, Numéro 6, 2006, pp. 500-522
DOI: 10.1615/InterJFluidMechRes.v33.i6.20
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RÉSUMÉ

Unsteady boundary layer free convection flow of an incompressible electrically conducting viscoelastic second-order fluid over a vertically permeable flat plate is considered, where temperature and concentration differences are responsible for the convective buoyancy current. The flow is affected by a constant suction of fluid through the permeable wall in the presence of a temperature-dependent heat source/sink and applied transfer magnetic field. This intricate mathematical problem has been solved analytically. The analysis has been carried out for small values of the viscoelastic parameter and the results are presented in table and graphical form. The effect of various nondimensional physical parameters, such as the viscoelastic parameter, Grashof number Gr, modified Grashof number Gm, source/sink parameter, frequency parameter, time dependency parameter, Prandtl number, Schmidt number, permeability parameter, and magnetic parameter, on the boundary layer velocity and skin-friction coefficient are investigated. Some of the several important findings of the results are: (i) the increase of the velocity in the boundary layer with the increase of viscoelastic parameter is significant for higher values of the Grashof number; (ii) the combined effect of increasing the values of viscoelastic parameter, modified Grashof number, and permeability parameter is to enhance the horizontal velocity profile largely in the boundary layer; (iii) the effect of increasing the value of the Prandtl number is to decrease the skin-friction coefficient for smaller values of viscoelastic parameter, and its effect is to increase the skin-friction parameter for higher values of viscoelastic parameter in the presence of convective current generated by cooling of the boundary wall and concentration gradient (both Gr and Gm positive); (iv) the limiting value of viscoelastic parameter for which separation of boundary layer takes place is higher for higher values of permeability parameter and Hartmann number, and lower values of Prandtl number; (v) the effect of temperature-dependent heat source is to enhance the reverse flow in the negative x direction near the boundary wall more significantly in the case of a viscoelastic fluid than a viscous fluid.

CITÉ PAR
  1. Mahabaleshwar U.S., Sarris Ioannis E., Lorenzini Giulio, Effect of radiation and Navier slip boundary of Walters’ liquid B flow over a stretching sheet in a porous media, International Journal of Heat and Mass Transfer, 127, 2018. Crossref

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