TY - JOUR
T1 - Generalized analytic functions in 3d stokes flows
AU - Zabarankin, M.
AU - Krokhmal, P.
PY - 2007/3/30
Y1 - 2007/3/30
N2 - A class of generalized analytic functions, defined by a special case of the Carleman system that arises in three-dimensional asymmetric problems of hydrodynamics of Stokes flows, stationary electromagnetic fields in conductive materials, etc., has been considered. Hilbert formulae, establishing relationships between the real and imaginary parts of a generalized analytic function from this class, have been derived for the domains exterior to the contour of bi-spheres and torus in the meridional cross-section plane. This special case of the Carleman system has been reduced to an infinite three-diagonal system of algebraic equations with respect to the coefficients in series representations of the real and imaginary parts. For torus, the system has been solved by means of the Fourier transform, while for bi-spheres, it has been solved by an algebraic method. As examples, analytical expressions for the pressure in the problems of the steady axially symmetric motion of rigid bi-spheres and torus in a Stokes fluid have been derived based on the corresponding Hilbert formulae.
AB - A class of generalized analytic functions, defined by a special case of the Carleman system that arises in three-dimensional asymmetric problems of hydrodynamics of Stokes flows, stationary electromagnetic fields in conductive materials, etc., has been considered. Hilbert formulae, establishing relationships between the real and imaginary parts of a generalized analytic function from this class, have been derived for the domains exterior to the contour of bi-spheres and torus in the meridional cross-section plane. This special case of the Carleman system has been reduced to an infinite three-diagonal system of algebraic equations with respect to the coefficients in series representations of the real and imaginary parts. For torus, the system has been solved by means of the Fourier transform, while for bi-spheres, it has been solved by an algebraic method. As examples, analytical expressions for the pressure in the problems of the steady axially symmetric motion of rigid bi-spheres and torus in a Stokes fluid have been derived based on the corresponding Hilbert formulae.
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U2 - 10.1093/qjmam/hbl026
DO - 10.1093/qjmam/hbl026
M3 - Article
AN - SCOPUS:34447628078
SN - 0033-5614
VL - 60
SP - 99
EP - 123
JO - Quarterly Journal of Mechanics and Applied Mathematics
JF - Quarterly Journal of Mechanics and Applied Mathematics
IS - 2
ER -