MHD oblique stagnation-point flow of a Newtonian fluid

Giulia Giantesio, Alessandra Borrelli, Maria Cristina Patria

Risultato della ricerca: Contributo in rivistaArticolo in rivista

30 Citazioni (Scopus)

Abstract

The steady two-dimensional oblique stagnation-point flow of an electrically conducting Newtonian fluid in the presence of a uniform external electromagnetic field (E0,H0) is analysed, and some physical situations are examined. In particular, if E0 vanishes,H0 lies in the plane of the flow, with a direction not parallel to the boundary, and the induced magnetic field is neglected, it is proved that the oblique stagnation-point flow exists if and only if the external magnetic field is parallel to the dividing streamline. In all cases it is shown that the governing nonlinear partial differential equations admit similarity solutions, and the resulting ordinary differential problems are solved numerically. Finally, the behaviour of the flow near the boundary is analysed; this depends on the Hartmann number if H0 is parallel to the dividing streamline.
Lingua originaleEnglish
pagine (da-a)271-294
Numero di pagine24
RivistaZeitschrift fur Angewandte Mathematik und Physik
Volume63
DOI
Stato di pubblicazionePubblicato - 2012

Keywords

  • MHD flow
  • Newtonian fluids
  • Oblique stagnation-point flow

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