Pitak, I., Shaporev, V., Briankin, S. and Pitak, O. 2017. Justification of the calculation methods of the main parameters of vortex chambers. Technology audit and production reserves. 5, 3(37) (Sep. 2017), 9–13. DOI:https://doi.org/10.15587/2312-8372.2017.112782.