A numerical investigation of incompressible viscous flow in a helical square annulus
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摘要
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.
论文关键词:Helical duct,Annulus,Incompressible flow,Finite difference,Projection method
论文评审过程:Received 5 September 2015, Accepted 21 December 2015, Available online 22 January 2016, Version of Record 22 January 2016.
论文官网地址:https://doi.org/10.1016/j.amc.2015.12.035