Degradation of polyacrylamide in dilute solution

Drag reduction and degradation of nonionic surfactant solutions with organic acid in turbulent pipe flow

“…The investigation of the degradation of the nonionic surfactant solution is quite important for the application for the circulating system. Up to the present time, the polymer degradation has been comprehensively investigated for the pipe flow [26,30,42,10], boundary layer flow [9], and flow in a cylindrical double gap rheometer [27]. For the nonionic surfactant solutions, on the other hand, extensive studies on degradation are few [12].…”

Polymer degradation of dilute solutions in turbulent drag reducing flows in a cylindrical double gap rheometer device

“…Turbulent and laminar flow degradation of polymers in different geometries have been studied by a number of investigators [27,25,47,34,29]. Moussa and Tiu [24] analysed various parameters for polymer degradation in turbulent pipe flow, such as the concentration, molecular weight, and polymer-solvent interaction.…”

Investigating the Drag Reduction Performance of Rigid Polymer–Carbon Nanotubes Complexes

“…Analyzing the concept of drag reduction with a universally acceptable theory on molecular degradation of DRAs would be a difficult one, many interdisciplinary relationships between chemistry and fluid mechanics are parts of the major factor contributing to such, different works have been reported in this respect with respect to molecular weight, concentration, temperature and Reynolds number on drag reduction effectiveness, some of these are (Nakano and Minoura, 1975;Rho et al 1996;Pereira and Soares, 2012).…”