A numerical investigation of incompressible viscous flow in a helical square annulus

M.R.H. Nobari, S. Kazemi, V. Nourian and M. Adib

Applied Mathematics and Computation, 2016, vol. 277, issue C, 127-141

Abstract: In this article incompressible viscous flow in a helical square annulus is investigated numerically. The governing equations including the continuity and Navier–Stokes equations are written in an orthogonal helical coordinate system. This provides a uniform computational domain with a capability of using an exact second order finite difference method based on the projection algorithm to discretize the governing equations. The numerical results obtained study the effects of different non-dimensional parameters such as torsion, curvature, Reynolds number and aspect ratio on the secondary flow, axial velocity and friction factor in detail.

Keywords: Helical duct; Annulus; Incompressible flow; Finite difference; Projection method (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:277:y:2016:i:c:p:127-141

DOI: 10.1016/j.amc.2015.12.035

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