@Article{hmt.16.13,
AUTHOR = {Wei Tian
, Mingjun Pang, Na Xu},
TITLE = {EXPERIMENTAL INVESTIGATION ON DRAG REDUCTION OF MIXED  PEO AND CTAC/NASAL AQUEOUS SOLUTION IN A ROTATING DISK  APPARATUS},
JOURNAL = {Frontiers in Heat and Mass Transfer},
VOLUME = {16},
YEAR = {2021},
NUMBER = {1},
PAGES = {1--12},
URL = {http://www.techscience.com/fhmt/v16n1/52532},
ISSN = {2151-8629},
ABSTRACT = {Drag reduction (DR) by the additive of mixed surfactant and polymer is investigated in detail in a rotating disk apparatus (RDA). Polyethylene oxide 
(PEO) and Cetyltrimethyl ammonium chloride (CTAC)/sodium salicylate (NaSal) are chosen as polymer and surfactant, respectively. It is investigated 
on the influence of combination concentration of polymer & surfactant, temperature and Reynolds number on the drag-reducing rate. The present 
experimental results show that the drag-reducing rate of the mixed solution is definitely higher than that of the pure PEO or CTAC/NaSal solutions. 
This phenomenon is especially sharp at the high temperature and/or the large Reynolds number. When the temperature is higher than 30℃, the net 
enhancement of DR is the sharpest for the mixed solutions of any CTAC/NaSal concentration and 30 ppm PEO. However, for the mixed solutions of 
the fixed PEO concentration, the combination concentration of PEO & CTAC/NaSal, which causes the sharpest enhancement of the DR, depends on 
temperature. In short, comparing with the only addition of PEO or CTAC/NaSal, the coupled addition of PEO & CTAC/NaSal can obtain the very 
good drag-reducing effect for the rotating disk apparatus at the high temperature and/or the great Reynolds number.},
DOI = {10.5098/hmt.16.13}
}