Stirring of Fluid Particles through a Rotating Helical Pipe of Circular Cross-Section under Fully Developed Flow Condition

摘要

Laminar incompressible viscous flow through a rotating helical pipe has been studied to understand the stirring of the fluid particles over the cross-section of the pipe. The pitch and the curvature affect the mixing property but the most affecting factor is rotation. In this study, the flow has been considered to be driven by a constant pressure gradient force along the center line of the pipe. The problem has been solved numerically using spectral method. To understand the stirring, 360 fluid particles 1° apart are considered at nondimensional radius 0.8.