1. H. A. Vaidya, O. Ertun, B. Gen, F. Beyer, C. Koksoy and A. Delgado, J. Phys.: Conf. Ser. 318, 062022 (2011).
2. A. C. Benim, F. Gul and E. Pasqualotto, “Numerical investigation of the role of the inlet swirl velocity profile on decay of swirl in pipe flow”, Proc. 5th Int. Conf. on Fluid Mechanics and Aerodynamics (Athens, Greece, 2007), pp. 238–243.
3. R. R. Usmanova and G. E. Zaikov, Bulletin of the Technological University 18 (1), 350–354 (2015).
4. J. - Z. Wu, H. -Y. Ma, and M. D. Zhou, Vorticity and Vortex Dynamics. (Springer, Berlin, Heidelberg, 2006).
5. V. K. Shchukin and A. A. Khalatov, Heat and mass transfer and hydrodynamics of swirling flows in axisymmetric channels (Izdatel’stvo Mashinostroenie, Moscow, 1982).