Method for experimental data processing in the sphere of hydrodynamics of packed heat and mass exchange apparatusesNikolay Merentsov, Vyacheslav Balashov, Denis Bunin, Vitaliy Lebedev, Aleksandr Persidskiy and Mikhail TopilinMATEC Web Conf., 243 (2018) 00011DOI: https://doi.org/10.1051/matecconf/201824300011