THMT-15. Proceedings of the Eighth International Symposium On Turbulence Heat and Mass Transfer
DOI: 10.1615/ICHMT.2015.THMT-15
ISBN Print: 978-1-56700-427-4
ISBN CD: 978-1-56700-428-8
Energy transport between turbulent structures and polymer in drag-reducing channel flow by using beads-spring-dashpot chain model
pages 739-742
DOI: 10.1615/ICHMT.2015.THMT-15.1650
Краткое описание
Numerical simulation of a drag-reducing turbulent channel flow due to polymer is performed. The beads-spring-dashpot chain model is employed as a model of polymer. The model consists of beads, springs, and dashpot to represent polymer dynamics. Energy exchange between the polymer and the fluid is mainly focused to discuss the drag-reduction mechanism. Results show that the energy transport by the polymer models enhances the streamwise velocity fluctuation and strengthen the turbulence anisotropy.