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Stokes equation in a semi-infinite region: generalization of Lamb solution and applications to Marangoni flows

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 نشر من قبل Thomas Bickel
 تاريخ النشر 2021
  مجال البحث فيزياء
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We consider the creeping flow of a Newtonian fluid in a hemispherical region. In a domain with spherical, or nearly spherical, geometry, the solution of Stokes equation can be expressed as a series of spherical harmonics. However, the original Lamb solution is not complete when the flow is restricted to a semi-infinite space. The general solution in hemispherical geometry is then constructed explicitly. As an application, we discuss the solutions of Marangoni flows due to a local source at the liquid-air interface.

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