Identification of areas of emergence of critical flow regimes of nonlinear viscous liquids in a tubular reactorS.A. Livshits, N.A. Yudina, T.U. Dunaeva, E.K. Nikolaeva and S.R. EnikeevaE3S Web Conf., 124 (2019) 05046DOI: https://doi.org/10.1051/e3sconf/201912405046