... polyethylene oxide experimental Polyethylene oxide has been used in the majority of TBL studies [ 3 , 6 – 14 ] because it is a very efficient polymer solution, being able to achieve drag reduction in excess of 70% with concentrations ∼10 ppm (if mean molecular weight is sufficiently high...

...-mail:  yasaman.farsiani@okstate.edu e-mail:  zeeshan.saeed@okstate.edu e-mail:  elbing@okstate.edu 17 07 2019 18 04 2020 25 05 2020 polymer drag reduction degradation pipe flow pressure drop experimental Fig. 1 Polymeric velocity profiles from a turbulent boundary layer...

... if the rules of similarity hold for the present model. The analysis was carried by using the CFX software from ANSYS for several flow rates and rotor speeds. The head values computed in the first stage of the pump were compared with experimental measurements with an average deviation of 5%. The numerical...

...Henrique Stel; Rigoberto E. M. Morales; Admilson T. Franco; Silvio L. M. Junqueira; Raul H. Erthal; Marcelo A. L. Gonçalves This article describes a numerical and experimental investigation of turbulent flow in pipes with periodic “d-type” corrugations. Four geometric configurations of d-type...