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Integral transformation of the Navier-Stokes equations in cylindrical geometry. (English) Zbl 0909.76018

The generalized integral transform technique is extended to handle the incompressible Navier-Stokes equations for two-dimensional steady laminar flow in cylindrical geometries. Hybrid numerical-analytical solutions with controlled accuracy are obtained, as a result of an appropriate choice of the associated eigenfunction expansion basis, extracted from the diffusion operator of the stream function-only formulation for this class of problems. The approach is illustrated with a developing laminar flow in annular channel, and numerical results demonstrate the convergence characteristics of the method.

MSC:

76D05 Navier-Stokes equations for incompressible viscous fluids
76M20 Finite difference methods applied to problems in fluid mechanics
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