Effect of targeted wall shape thickness on flow response and recovery for engineering design (opens in new tab)

The effect of pipe-insert thickness on turbulent pipe flow response and recovery is numerically investigated at a Reynolds number of 25, 000. Three perturbation thicknesses are assessed, referred to as Fourier pipe-inserts, $$h=0.05D, 0.1D$$, and 0.15D. The relationship between insert thickness and recovery of turbulent kinetic energy and mean axial velocity is assessed to evaluate the impact of perturbation thickness. Increasing the perturbation strength (thickness) enhances flow turbulence ...