INVESTIGATION OF SWIRL INTENSITY IN CIRCULAR TUBE INDUCED BY SHORT TWISTED TAPES
The numerical results of swirl intensity in a circular pipe induced by short twisted tapes under pseudoplastic and Newtonian laminar flows are presented. Inserts consist of four, six and eight blades with a twist pitch S / D = 3 ... 5 and length up to 4D. The cross-model is used to describe the rheological behavior of a pseudoplastic fluid. An aqueous solution of 1.5% Na-Cmc is considered as a working fluid. The problem is implemented in the Comsol Multiphysics package. Approbation of the package is considered on the example of a laminar flow of water in a circular tube with a twisted tape.