SIMULATION OF LAMINAR SINGLE-PHASE FLOW OF WATER IN AN ANNULAR HELICOIDAL PIPE

In this paper, laminar single-phase flow of water in an annular helicoidal pipe was simulated at various reynolds numbers using Computational FluidDynamics(CFD). It was found that with increasing Dean number and creation of centrifugal forces, a high velocity and pressure region occurs between twotubes, at the outer side of the annular helicoidal pipe walls. Friction factor decreases as the tendency for turbulence increases