Eighth International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP8
DNS OF SWIRLING FLOW IN A ROTATING PIPE
pages 1-5
DOI: 10.1615/TSFP8.950
RÉSUMÉ
Numerical simulation is carried out to study the combined effects of rotation and induced swirl on the fully developed turbulent pipe flow at Reynolds number Reb = 4900, based on the bulk velocity and the pipe diameter. The swirl is induced by a body force in the tangential momentum equation, which produces a tangential velocity field in the near wall region. Results from a single swirl along with five different strengths of the rotation are considered. The effects of rotation and swirl on turbulent structures are investigated in detail. Also instantaneous axial velocity fluctuations are provided to visualize the effects on the turbulent structures.